Unfortunately, I still experience freezes after the GM107GL graphics card exchange - perhaps less often but it's hard to tell.
The only positive outcome is the now silent operation of the workstation. I'll keep looking into the hardware side, but I'm back to square one, it could be a software bug too. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-nouveau in Ubuntu. https://bugs.launchpad.net/bugs/1917037 Title: Frozen screen (NVidia GM107 card with large 3840 × 2160 screen) Status in xserver-xorg-video-nouveau package in Ubuntu: New Bug description: Just after the screen freezes, I am sometimes able to log in with SSH and the log file typically reads: Feb 26 11:18:15 is233895 kernel: [15385.625416] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT] Feb 26 11:18:15 is233895 kernel: [15385.625436] nouveau 0000:01:00.0: fifo: runlist 0: scheduled for recovery Feb 26 11:18:15 is233895 kernel: [15385.625453] nouveau 0000:01:00.0: fifo: channel 6: killed Feb 26 11:18:15 is233895 kernel: [15385.625462] nouveau 0000:01:00.0: fifo: engine 5: scheduled for recovery Feb 26 11:18:15 is233895 kernel: [15385.625467] nouveau 0000:01:00.0: fifo: engine 0: scheduled for recovery Feb 26 11:18:15 is233895 kernel: [15385.626095] nouveau 0000:01:00.0: Xorg[2366]: channel 6 killed! However, the machine eventually locks up and I cannot log in with SSH any more. Then I need to power down the computer. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xserver-xorg-video-nouveau 1:1.0.16-1 ProcVersionSignature: Ubuntu 5.4.0-66.74-generic 5.4.86 Uname: Linux 5.4.0-66-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.16 Architecture: amd64 BootLog: Error: [Errno 13] Permission non accordée: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Fri Feb 26 11:45:55 2021 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu DkmsStatus: virtualbox, 6.1.16, 5.4.0-65-generic, x86_64: installed virtualbox, 6.1.16, 5.4.0-66-generic, x86_64: installed ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: NVIDIA Corporation GM107GL [Quadro K1200] [10de:13bc] (rev a2) (prog-if 00 [VGA controller]) Subsystem: NVIDIA Corporation GM107GL [Quadro K1200] [10de:1140] InstallationDate: Installed on 2020-04-09 (322 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402) MachineType: Dell Inc. Precision Tower 3620 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=fr_FR.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-66-generic root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7 SourcePackage: xserver-xorg-video-nouveau UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/13/2020 dmi.bios.vendor: Dell Inc. dmi.bios.version: 2.16.2 dmi.board.name: 0MWYPT dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 3 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr2.16.2:bd08/13/2020:svnDellInc.:pnPrecisionTower3620:pvr:rvnDellInc.:rn0MWYPT:rvrA01:cvnDellInc.:ct3:cvr: dmi.product.family: Precision dmi.product.name: Precision Tower 3620 dmi.product.sku: 06B7 dmi.sys.vendor: Dell Inc. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.102-1ubuntu1~20.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.1 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+git20200226-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1917037/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

