Public bug reported: I recently installed Ubuntu 20.04 (20200402) with LVM encryption and automatic logon. So I enter my encryption password and after the motherboards boot logo it will login automatically to desktop. I also chose the additional drivers and so nvidia-driver-440. Everything seems to be OK until I select a scaling above 100% (e.g. 200%) in settings. Next reboot, I enter my encryption password. When the automatic logon process should happen, the monitor turns off and says that no display signal is available.
Currently I was able to return to a working setup by pressing CTRL + ALT + F4, login and enter the following commands to remove nvidia-driver and use XORG instead: sudo apt purge nvidia-driver-440 sudo apt autoremove sudo reboot I am pretty sure that the issue will occur again, if I choose NVIDIA driver again. Any thoughts? EDIT: On Ubuntu 19.04 I had a similar bug: If I started my PC and the monitor was not turned on, the monitor reported no signal available after turning it on. I was not able to see the boot-up field to enter my encryption password. Unfortunately I didn't test, if I were able to enter my password and logon anyway. Workaround was to turn the monitor on, before starting the PC. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Uname: Linux 5.4.0-21-generic x86_64 ApportVersion: 2.20.11-0ubuntu22 Architecture: amd64 BootLog: Error: [Errno 13] Keine Berechtigung: '/var/log/boot.log' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Tue Apr 7 19:31:50 2020 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] [10de:1b06] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Gigabyte Technology Co., Ltd GP102 [GeForce GTX 1080 Ti] [1458:3762] InstallationDate: Installed on 2020-04-05 (1 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402) MachineType: Micro-Star International Co., Ltd. MS-7B45 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-21-generic root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/03/2019 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: A.80 dmi.board.asset.tag: Default string dmi.board.name: Z370 GAMING PRO CARBON (MS-7B45) dmi.board.vendor: Micro-Star International Co., Ltd. dmi.board.version: 2.0 dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Micro-Star International Co., Ltd. dmi.chassis.version: 2.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrA.80:bd04/03/2019:svnMicro-StarInternationalCo.,Ltd.:pnMS-7B45:pvr2.0:rvnMicro-StarInternationalCo.,Ltd.:rnZ370GAMINGPROCARBON(MS-7B45):rvr2.0:cvnMicro-StarInternationalCo.,Ltd.:ct3:cvr2.0: dmi.product.family: Default string dmi.product.name: MS-7B45 dmi.product.sku: Default string dmi.product.version: 2.0 dmi.sys.vendor: Micro-Star International Co., Ltd. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.100-4 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.2-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.7-2ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20190815-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal ubuntu ** Description changed: I recently installed Ubuntu 20.04 (20200402) with LVM encryption and automatic logon. So I enter my encryption password and after the motherboards boot logo it will login automatically to desktop. I also chose the additional drivers and so nvidia-driver-440. Everything seems to be OK until I select a scaling above 100% (e.g. 200%) in settings. Next reboot, I enter my encryption password. When the automatic logon process should happen, the monitor turns off and says that no display signal is available. Currently I was able to return to a working setup by pressing CTRL + ALT + F4, login and enter the following commands to remove nvidia-driver and use XORG instead: sudo apt purge nvidia-driver-440 sudo apt autoremove sudo reboot I am pretty sure that the issue will occur again, if I choose NVIDIA driver again. Any thoughts? + + EDIT: On Ubuntu 19.04 I had a similar bug: If I started my PC and the + monitor was not turned on, the monitor reported no signal available + after turning it on. I was not able to see the boot-up field to enter my + encryption password. Unfortunately I didn't test, if I were able to + enter my password and logon anyway. Workaround was to turn the monitor + on, before starting the PC. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Uname: Linux 5.4.0-21-generic x86_64 ApportVersion: 2.20.11-0ubuntu22 Architecture: amd64 BootLog: Error: [Errno 13] Keine Berechtigung: '/var/log/boot.log' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Tue Apr 7 19:31:50 2020 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: - NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] [10de:1b06] (rev a1) (prog-if 00 [VGA controller]) - Subsystem: Gigabyte Technology Co., Ltd GP102 [GeForce GTX 1080 Ti] [1458:3762] + NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] [10de:1b06] (rev a1) (prog-if 00 [VGA controller]) + Subsystem: Gigabyte Technology Co., Ltd GP102 [GeForce GTX 1080 Ti] [1458:3762] InstallationDate: Installed on 2020-04-05 (1 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402) MachineType: Micro-Star International Co., Ltd. MS-7B45 ProcEnviron: - TERM=xterm-256color - PATH=(custom, no user) - XDG_RUNTIME_DIR=<set> - LANG=de_DE.UTF-8 - SHELL=/bin/bash + TERM=xterm-256color + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=de_DE.UTF-8 + SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-21-generic root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/03/2019 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: A.80 dmi.board.asset.tag: Default string dmi.board.name: Z370 GAMING PRO CARBON (MS-7B45) dmi.board.vendor: Micro-Star International Co., Ltd. dmi.board.version: 2.0 dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Micro-Star International Co., Ltd. dmi.chassis.version: 2.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrA.80:bd04/03/2019:svnMicro-StarInternationalCo.,Ltd.:pnMS-7B45:pvr2.0:rvnMicro-StarInternationalCo.,Ltd.:rnZ370GAMINGPROCARBON(MS-7B45):rvr2.0:cvnMicro-StarInternationalCo.,Ltd.:ct3:cvr2.0: dmi.product.family: Default string dmi.product.name: MS-7B45 dmi.product.sku: Default string dmi.product.version: 2.0 dmi.sys.vendor: Micro-Star International Co., Ltd. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.100-4 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.2-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.7-2ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20190815-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 -- 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/1871458 Title: No display signal if NVIDIA driver and display scaling is active To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1871458/+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