[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
I can confirm for Lenovo Thinkpad (P15/P17/T15g/T15p/P15v Gen 1) that backlight control is working now since the last BIOS update Version 1.28 below excerpt from the readme file: CHANGES IN THIS RELEASE Version 1.28 [Important updates] Update includes a security fix. [New functions or enhancements] Updated the Diagnostics module to version 04.22.000. Update Regulatory Information. [Problem fixes] Fixed an issue where Power-On Password is set by WMI even if Power-On Password Control was disabled. Fixed an issue where Linux adjust brightness fail in discrete mode. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Thanks, "nvidia.NVreg_RegistryDwords=EnableBrightnessControl=1" works on Ubuntu 20.04 5.11.0-40-generic with Nvidia driver 495.44 on Lenovo Legion 15ARH05. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Thanks Kunal for the update, this regkey is already incorporated in future released driver. So we should not have to explicitly define it in near future. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
I had already tried the "EnableBrightnessControl=1" kernel parameter a year ago but I tried it anyway, no effect. However, trying the suggestion of @paulplusx I can happily report that brightness works flawlessly after using "nvidia.NVreg_RegistryDwords=EnableBrightnessControl=1" with the latest 495 driver. nvidia-smi shows GPU is loaded and opengl works on glxgears and CG:GO. If someone can test CUDA that would be great. Thank you everyone and especially @paulplusx for solving this issue, hopefully this means we can close this bug soon. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Hi Kamal / David, Please confirm if anyone get a chance to try with above suggested regkey. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Hi All, Please try with the EnableBrightnessControl =1 as kernel parameter or add it in xorg.conf file. You can add it in device section as shown below - Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "NVIDIA RTX A3000 Laptop GPU" Option "RegistryDwords" "EnableBrightnessControl=1" EndSection After change in the xorg, please uninstall / install the driver. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Hi All, Please try with the EnableBrightnessControl =1 as kernel parameter or add it in xorg.conf file. You can add it in device section as shown below - Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "NVIDIA RTX A3000 Laptop GPU" Option "RegistryDwords" "EnableBrightnessControl=1" EndSection After change in the xorg, please uninstall / install the driver. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Hi All, Please try with the EnableBrightnessControl =1 as kernel parameter or add it in xorg.conf file. You can add it in device section as shown below - Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "NVIDIA RTX A3000 Laptop GPU" Option "RegistryDwords" "EnableBrightnessControl=1" EndSection After change in the xorg, please uninstall / install the driver. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Hi All, Please try with the EnableBrightnessControl =1 as kernel parameter or add it in xorg.conf file. You can add it in device section as shown below - Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "NVIDIA RTX A3000 Laptop GPU" Option "RegistryDwords" "EnableBrightnessControl=1" EndSection After change in the xorg, please uninstall / install the driver. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
** Changed in: oem-priority Status: Confirmed => New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
** Changed in: oem-priority Status: New => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Now, it works for me (ubuntu 20.04.3) with the kernel (v5.11.0.34.36) parameter nvidia.NVreg_RegistryDwords=EnableBrightnessControl=1 And nvidia drivers 460.91.03. No need to do anything else. The parameter is mentioned in arch wiki https://wiki.archlinux.org/title/NVIDIA#Enabling_brightness_control This is all for discrete mode. Credits to @Chaplan from legion discord for finding this. For hybrid mode, there is different kernel parameter (for AMD) amdgpu.backlight=0 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Nothing changed after removing parameter. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Can you also try to boot the system without parameter without nvidia- drm.modeset=1 and share test results. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
My content of /sys/class/backlight is just the /acpi_video0 directory. Ubuntu 20.04.1 kernel 5.8.0-63-generic Lenovo Legion 5 15ARH05 GTX 1650 Ti Driver Version: 470.57.02 Brightness control still not working. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Please list the content of /sys/class/backlight folder. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Hi All, Please list the content of /sys/class/backlight folder. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Just to add to the report by @manzood, this bug affects my variant of y540 as well. My complete laptop spec is as follows: Lenovo Legion Y540 NVIDIA GTX 2060 Mobile Ubuntu 18.04 kernel 5.4.0-72-generic and again, the workaround suggested by @sureshot16 does not work, editing /sys/class/backlight/acpi_video0/brightness does not work(except when prime-select is set to intel), adding 'Option "RegistryDwords" "EnableBrightnessControl=1"' to /usr/share/X11/xorg.conf.d/10-nvidia-brightness.conf does not work neither does adding kernel parameters in grub config. This brightness issue has been a thorn in my side for the better part of a year, the only version which works is the Nouveau display driver installed via "Software & Updates" but has no CUDA support or Steam integration so that's a deal breaker for me. Unlike @manzood, suspending the laptop and resuming has never worked for me and causes artifacts and flickering in 460 specifically. Issue persists in 465 as well. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
The 460 driver is broken again. No brightness control. 01 May 2021: nvidia-driver-460 (proprietary, tested). A reboot fixed everything. Reporting this here as it's not a bug with the driver. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
To add more info on what I tried, I have put it here: https://askubuntu.com/questions/1329928/legion-5-pro-brightness-control- doesnt-work-on-ubuntu-20-04-with-nvidia-driver . Surprisingly the brightness also works on Manjaro (as mentioned in my post) after adding 'Option "RegistryDwords" "EnableBrightnessControl=1"' to x.conf.d. Also, it also works on Regolith Linux 1.5.3. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
As a temporal workaround, this works for me https://linuxhint.com/display_brightness_commandline/ xrandr --output DP-0 --brightness 0.7 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Same problem on Legion 5 AMD® Ryzen 7 4800h with radeon graphics × 16 RTX 2060 Solution in comment 11 didn't work for me Also tried some grub commands that did not work. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
It (link above) didn't work for me, even with Kernel 5.10 and 5.11. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Same problem with Legion 5 pro, 5800H+3070. Tried config https://www.reddit.com/r/GamingLaptops/comments/ls9k5r/legion_5_pro_other_info_64gb_ram_upgrade_linux/ This guy claims that after 'upgrading to Kernel 5.10', 'Blacklisting noveau drivers', 'changing the .conf file' and 'adding modules in initramfs', brightness control works. https://www.notion.so/Legion-5 -Pro-Regolith-Important-Steps-2c468d1b33cc481dbd92d5ea59a6b74b Will try this later. So far I have tried changing .conf and adding modules in initramfs and it didn't work. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
I have the same problem with Asus Rog Strix (GL502VY). Nvidia 980M. Ubuntu 20.10, kernel 5.8.0-43-generic. Driver nvidia-driver-460. Movement of modules to initramfs did not help. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
I have the same problem and the fix in comment #11 fixed it. I agree with comment #16. I join a copy of my dmesg and Xorg.0.log before and after the fix. I hope it will be useful. ** Attachment added: "dmesg and Xorg.0.log before and after the fix." https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-455/+bug/1905591/+attachment/5462682/+files/XorgLogs.zip -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
The workaround suggests that there's an interaction between the NVIDIA driver and another kernel module at play here. Presumably, adding the NVIDIA kernel modules to the initrd causes them to be loaded before the other module. Maybe video.ko, which registers its own brightness handler? The modeswitch glitch should probably be tracked as a separate issue. Can somebody who is experiencing this glitch provide an example video? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Problem persists with nvidia-driver-460 (460.39-0ubuntu0.18.04.1) on Lenovo X1 Extreme. The comment #11 workaround still works for this laptop model. ** Description changed: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 + nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 nvidia-driver-460: 460.39-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
I can confirm that this bug affects me too, but unfortunately the workaround suggested by @sureshot16 that worked for some users here did not work for me, so I think it wouldn't for some makes and models. For reference, I'm on a laptop with the following specifications: Lenovo Legion Y540 NVIDIA GTX 1650 Mobile/Max-Q Ubuntu 20.04 kernel 5.8.0-38 generic I've had brightness issues on previous versions of the NVIDIA drivers as well, somewhat constantly, but they'd stop once I suspended the laptop and opened it up again once. This is not the case for the 460 driver. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
@sureshot16 thanks a lot!! fixes on my system too! (hp omen 15) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
The workaround outlined by @sureshot16 in comment #11 (add the nvidia drivers to initramfs) fixes it my Lenovo X1 Extreme too: Brightness control works again with nvidia-460.32.03, and no pixel garbage on mode switch either. Thanks, @sureshot16! ** Description changed: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 + + *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 *WORKAROUND: See comment #11 (add nvidia drivers to initramfs). *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
I tried the fix for a different problem in this link randomly and it worked for me. https://forums.developer.nvidia.com/t/problem-driver-nvidia-455-45-01 -on-linux-mint-20-4-6-7/165402 I am adding steps here: 1. Add the following lines to the file "/etc/initramfs-tools/modules" nvidia nvidia-drm nvidia-modeset 2. Run "sudo update-initramfs -u" in the terminal 3. Reboot -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
** Changed in: nvidia-graphics-drivers-455 (Ubuntu) Status: Triaged => In Progress ** Changed in: nvidia-graphics-drivers-455 (Ubuntu) Status: In Progress => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
I have the same problem. My system config is: Lenovo X1 extreme NVIDIA 1050 Ti max Q Ubuntu 20.04 kernel 5.8.0-36-generic Brightness control works on Nvidia 450 driver and not on Nvidia 460. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Triaged Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Here's my log ** Attachment added: "nvidia-bug-report.log.gz" https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-455/+bug/1905591/+attachment/5451331/+files/nvidia-bug-report.log.gz -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Triaged Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Confirming the bug on HP Omen 15 - with GTX 1070. Driver 450, brightness works. When installing 455 or 460, latest updates.. it gets stuck at max brightness. (Using ubuntu 20.04.1) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Triaged Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: nvidia-graphics-drivers-460 (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Triaged Status in nvidia-graphics-drivers-460 package in Ubuntu: Confirmed Bug description: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
** Description changed: + On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX + 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 - - On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile], and other laptop model(s): + *Note that 460 fixes it for Lenovo P73 per comment #6, but not for + Lenovo X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux ** Description changed: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 - *Note that 460 fixes it for Lenovo P73 per comment #6, but not for - Lenovo X1 per comment #5. + *Note that 460 fixes it for a 20.04 Lenovo P73 per comment #6, but not + for my 18.04.5 Lenovo X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux ** Description changed: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 - *Note that 460 fixes it for a 20.04 Lenovo P73 per comment #6, but not - for my 18.04.5 Lenovo X1 per comment #5. + *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not + for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the p
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
The 460 driver package was installed with the latest updates and I've rebooted. For me, at least, it's working perfectly again. And I made a mistake on my machine type: it's a ThinkPad P73. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Triaged Bug description: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile], and other laptop model(s): Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
** Description changed: - On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX - 1050 Ti Mobile] - Updating to nvidia-driver-455 results in loss of brightness control. On - boot, the laptop display brightness is somewhat less than fully bright - and cannot be changed. The brightness up/down keys do pop up the gnome - gui brightness widget, and /sys/class/backlight/nvidia_0/* values do - change, but the actual display's brightness does not. + WORKS FINE: + nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 + + NO BRIGHTNESS CONTROL: + nvidia-driver-455: 455.38-0ubuntu0.18.04.1 + nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 + + + On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile], and other laptop model(s): + + Updating to nvidia-driver-455 (or -460) results in loss of brightness + control. On boot, the laptop display brightness is somewhat less than + fully bright and cannot be changed. The brightness up/down keys do pop + up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* + values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or - the ~graphics-drivers/PPA). Normal functionality returns if I downgrade - to any version of nvidia-driver-450. + the ~graphics-drivers/PPA) or any version of -460. + + Normal functionality returns if I downgrade to any version of nvidia- + driver-450. + + Also observed: 455 and 460 temporarily display some pixel garbage while + mode-switching during the graphic login sequence. Only a minor glitch, + but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux - - nvidia-driver-455: 455.38-0ubuntu0.18.04.1 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 Status in OEM Priority Project: New Status in nvidia-graphics-drivers-455 package in Ubuntu: Triaged Bug description: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile], and other laptop model(s): Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp