** Description changed: The device is Lenovo Legion 7. This laptop has a mux switch to switch between dynamic/hybrid or discrete graphics mode. This laptop has a high resolution with high pixel density than the other displays out there, but I don't know the exact number. Additionally, this laptop can adjust the display refresh rate between 60 and 165 Hz. --- - There were 2 problems I encountered in dynamic/hybrid graphics mode: + There were 1 problem I encountered in dynamic/hybrid graphics mode: - The widgets shown were too small. Details: The resolution was correct, at 2560x1600, but all widgets shown were too small. I suspected this was due to the laptop screen high pixel density and the widget size calculation didn't make use of physical dimension, but in terms of pixel. I thought installing NVIDIA driver would fix this, but no; this worked in OpenSUSE Leap with KDE Plasma and I think it was because of the inclusion of NVIDIA OpenGL driver. The current workaround was to scale by 200% in "Display Settings", - although this make some widgets pixelated or blurred and the login - screen isn't affected by the scaling at all. - - - The DE seemed to use wrong screen refresh rate. - - The refresh rate I usually used is 165 Hz, but the "Display Settings" - showed 93 Hz. - - Changing the refresh rate between 60 Hz and 165 Hz didn't update the 93 - Hz in the "Display Settings". - - OpenSUSE Leap with KDE Plasma properly detected 60 and 165 Hz, so I - think it may be either GNOME DE or xorg misconfigurations. + although the login screen isn't affected by the scaling at all. --- There were 3 problems I encountered in discrete graphics mode: - - The widgets were are too small. + - The widgets were are too small, like the hybrid graphics mode issue. - The DE seemed to use wrong screen refresh rate. + + The refresh rate was fixed at 93 Hz in the "Display Settings". + + Changing the refresh rate between 60 Hz and 165 Hz by Fn keys didn't + update the 93 Hz in the "Display Settings". + + This didn't happen in the hybrid graphics mode. + + OpenSUSE Leap with KDE Plasma properly detected 60 and 165 Hz, so I + think it may be either GNOME DE or xorg misconfigurations. Details: The above 2 problems were the same issue as encountered in the hybrid graphics mode. - Screen brightness was fixed at 100%. Details: - Screen brightness could be adjusted by the keyboard fn keys, but the + Screen brightness could be adjusted by the keyboard Fn keys, but the brightness was fixed at 100%. + + This didn't happen in the hybrid graphics mode. This is the most annoying problem and have forced me to use the hybrid graphics mode which I don't like. - My first thought was a specific NVIDIA issue. + My first thought was either a specific NVIDIA issue or xorg + misconfigurations. So I tried adding "acpi_backlight=vendor" and "nvdia.NVreg_RegistryDwords=EnableBrightnessControl=1" to GRUB, but didn't work at all. --- In discrete graphics mode, a quick "sudo journalctl -p3 -b0" showed below: Okt 29 18:48:04 jiazhang-Legion-7-16ACHg6 kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.PB2], AE_NOT_FOUND (20210730/dswload2-162) Okt 29 18:48:04 jiazhang-Legion-7-16ACHg6 kernel: ACPI Error: AE_NOT_FOUND, During name lookup/catalog (20210730/psobject-220) Okt 29 18:48:04 jiazhang-Legion-7-16ACHg6 kernel: integrity: Problem loading X.509 certificate -65 Okt 29 18:48:04 jiazhang-Legion-7-16ACHg6 kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.GP17.VGA.LCD._BCM.AFN7], AE_NOT_FOUND (20210730/psargs-330) Okt 29 18:48:04 jiazhang-Legion-7-16ACHg6 kernel: ACPI Error: Aborting method \_SB.PCI0.GP17.VGA.LCD._BCM due to previous error (AE_NOT_FOUND) (20210730/psparse-529) In hybrid graphics mode, "sudo journalctl -p3 -b0" output like above except that there was no: Okt 29 18:48:04 jiazhang-Legion-7-16ACHg6 kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.GP17.VGA.LCD._BCM.AFN7], AE_NOT_FOUND (20210730/psargs-330) Okt 29 18:48:04 jiazhang-Legion-7-16ACHg6 kernel: ACPI Error: Aborting method \_SB.PCI0.GP17.VGA.LCD._BCM due to previous error (AE_NOT_FOUND) (20210730/psparse-529) ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: xorg 1:7.7+23ubuntu2 ProcVersionSignature: Ubuntu 5.15.0-52.58-generic 5.15.60 Uname: Linux 5.15.0-52-generic x86_64 .proc.driver.nvidia.capabilities.gpu0: Error: path was not a regular file. .proc.driver.nvidia.capabilities.mig: Error: path was not a regular file. .proc.driver.nvidia.gpus.0000.01.00.0: Error: path was not a regular file. .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.suspend: suspend hibernate resume .proc.driver.nvidia.suspend_depth: default modeset uvm .proc.driver.nvidia.version: - NVRM version: NVIDIA UNIX Open Kernel Module for x86_64 520.56.06 Release Build (dvs-builder@U16-T12-10-2) Thu Oct 6 21:33:54 UTC 2022 - GCC version: gcc version 11.3.0 (Ubuntu 11.3.0-1ubuntu1~22.04) + NVRM version: NVIDIA UNIX Open Kernel Module for x86_64 520.56.06 Release Build (dvs-builder@U16-T12-10-2) Thu Oct 6 21:33:54 UTC 2022 + GCC version: gcc version 11.3.0 (Ubuntu 11.3.0-1ubuntu1~22.04) ApportVersion: 2.20.11-0ubuntu82.1 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: pass CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Sat Oct 29 18:50:17 2022 DistUpgraded: Fresh install DistroCodename: jammy DistroVariant: ubuntu DkmsStatus: nvidia/520.56.06, 5.15.0-52-generic, x86_64: installed ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: - NVIDIA Corporation GA106M [GeForce RTX 3060 Mobile / Max-Q] [10de:2560] (rev a1) (prog-if 00 [VGA controller]) - Subsystem: Lenovo GA106M [GeForce RTX 3060 Mobile / Max-Q] [17aa:3aa6] + NVIDIA Corporation GA106M [GeForce RTX 3060 Mobile / Max-Q] [10de:2560] (rev a1) (prog-if 00 [VGA controller]) + Subsystem: Lenovo GA106M [GeForce RTX 3060 Mobile / Max-Q] [17aa:3aa6] InstallationDate: Installed on 2022-10-29 (0 days ago) InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809.1) MachineType: LENOVO 82N6 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-52-generic root=UUID=755b225e-e7d8-439f-a685-8ab759683ed6 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/16/2022 dmi.bios.release: 1.57 dmi.bios.vendor: LENOVO dmi.bios.version: GKCN57WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0R32862 WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Legion 7 16ACHg6 dmi.ec.firmware.release: 1.57 dmi.modalias: dmi:bvnLENOVO:bvrGKCN57WW:bd06/16/2022:br1.57:efr1.57:svnLENOVO:pn82N6:pvrLegion716ACHg6:rvnLENOVO:rnLNVNB161216:rvrSDK0R32862WIN:cvnLENOVO:ct10:cvrLegion716ACHg6:skuLENOVO_MT_82N6_BU_idea_FM_Legion716ACHg6: dmi.product.family: Legion 7 16ACHg6 dmi.product.name: 82N6 dmi.product.sku: LENOVO_MT_82N6_BU_idea_FM_Legion 7 16ACHg6 dmi.product.version: Legion 7 16ACHg6 dmi.sys.vendor: LENOVO nvidia-settings: ERROR: A supplied argument is invalid version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.110-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 22.0.5-0ubuntu0.1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A version.xserver-xorg-core: xserver-xorg-core 2:21.1.3-2ubuntu2.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1995173 Title: Lenovo Legion 7 Display Issues : Cannot Control Display Brightness, High Pixel Density Issue, and Resolution Issue To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1995173/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
