Getting bogged down in nouveau kernel bugs probably isn't helpful to testing 21.10. We know nouveau has frequent bugs and that we can't fix them, unless they're already fixed in drm-tip per comment #10.
If you would like to test 21.10 then I recommend changing the graphics card to one that is supported by current Nvidia proprietary drivers. If you would like to just use the machine as-is then I would recommend staying on Ubuntu 20.04 which has a supported version of the Nvidia-340 driver for this card (providing you stick to kernel 5.4?). -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1930945 Title: [nouveau] ubuntu desktop - changing display configuration lost wallpaper (trap messages filled dmesg) Status in linux package in Ubuntu: Confirmed Bug description: Ubuntu Desktop Impish daily test on - hp dc7700 (c2d-e6320, 5gb, nvidia quadro nvs 290) Changing display positions in settings. I have two monitors, one above the other (so not the default). I made change and it looked okay so I said keep. I noticed I was wrong having TOP/BOTTOM displays the wrong way (detected via mouse movements between displays) so I made another change of the TOP/BOTTOM displays in "DISPLAYS" of GNOME settings clicked apply again & keep... ** Expected Results On changing display orientation I expect wallpaper to be redrawn, or remain on screen ** Actual Results I now have BLUE background on both displays. (this was soon changing.. but that didn't occur until I tried to change wallpapers...) /var/crash is empty... operation appears normal; I lost background. lots of TRAP messages though fill `dmesg` ProblemType: Bug DistroRelease: Ubuntu 21.10 Package: ubuntu-desktop 1.469 ProcVersionSignature: Ubuntu 5.11.0-16.17-generic 5.11.12 Uname: Linux 5.11.0-16-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu67 Architecture: amd64 CasperMD5CheckResult: pass CasperVersion: 1.461 CurrentDesktop: ubuntu:GNOME Date: Sat Jun 5 03:01:52 2021 LiveMediaBuild: Ubuntu 21.10 "Impish Indri" - Alpha amd64 (20210604) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: ubuntu-meta UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1930945/+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
