I'm not using encryption or zfs and the bug has been present since the beta
On Sun, Jun 16, 2024, 9:05 PM Sidney Kelley <[email protected]> wrote: > > I also have encryption, does everyone with the bug have it? > > > Nope. I just got my bug marked duplicate here. I am not running > encryption, but I am running ZFS, which uses a vaguely similar disk > abstraction (booting a "fake" device that "maps" to a real one in some > arbitrary way). > > However, my bug was solved when I installed kubuntu-desktop (and then > switched the default display manager back to gdm3). So, I assume one of > the dependencies it brought along fixed it. > > -- > You received this bug notification because you are subscribed to a > duplicate bug report (2063222). > https://bugs.launchpad.net/bugs/2060268 > > Title: > Phantom "Unknown Display" shown in Settings after installing the > Nvidia driver > > Status in linux package in Ubuntu: > Confirmed > Status in nvidia-graphics-drivers-470 package in Ubuntu: > Confirmed > Status in nvidia-graphics-drivers-535 package in Ubuntu: > Confirmed > Status in nvidia-graphics-drivers-545 package in Ubuntu: > Confirmed > Status in nvidia-graphics-drivers-550 package in Ubuntu: > Confirmed > > Bug description: > [ Impact ] > > After installing Nvidia driver 545 on a single (27") monitor system, > Settings shows a phantom 46" monitor of the same resolution. > > It looks like the phantom monitor is /dev/dri/card0 which is still > controlled by simpledrm, while Nvidia uses /dev/dri/card1. > > [ Temporary Workaround ] > > 1. sudo rm /dev/dri/card0 > 2. Log in again. > > [ Permanent Workaround ] > > Add kernel parameter: > initcall_blacklist=simpledrm_platform_driver_init > > [ Test Plan ] > > Open Settings and verify the only monitors shown are your real > monitors. > > [ Where problems could occur ] > > Removing the simpledrm card is only safe when it's not being used. If > somehow a machine wasn't using the installed Nvidia driver then there > could be a risk of deleting the only working display. > > [ Other Info ] > > ProblemType: Bug > ApportVersion: 2.28.0-0ubuntu1 > Architecture: amd64 > AudioDevicesInUse: > USER PID ACCESS COMMAND > /dev/snd/seq: dan 4631 F.... pipewire > /dev/snd/controlC1: dan 4636 F.... wireplumber > CRDA: N/A > CasperMD5CheckResult: pass > DistroRelease: Ubuntu 24.04 > InstallationDate: Installed on 2024-01-04 (92 days ago) > InstallationMedia: Ubuntu 24.04 "Noble Numbat" - Daily amd64 (20231127) > MachineType: Intel(R) Client Systems NUC12DCMi7 > NonfreeKernelModules: nvidia_modeset nvidia > Package: linux (not installed) > ProcEnviron: > LANG=en_US.UTF-8 > PATH=(custom, no user) > SHELL=/bin/bash > TERM=xterm-256color > XDG_RUNTIME_DIR=<set> > ProcFB: 0 simpledrmdrmfb > ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-11-generic > root=UUID=8434774e-88f2-4e3f-adb8-2eb07dff3cf9 ro quiet loglevel=3 splash > vt.handoff=7 > ProcVersionSignature: Ubuntu 6.8.0-11.11-generic 6.8.0-rc4 > RelatedPackageVersions: > linux-restricted-modules-6.8.0-11-generic N/A > linux-backports-modules-6.8.0-11-generic N/A > linux-firmware 20240318.git3b128b60-0ubuntu1 > Tags: noble > Uname: Linux 6.8.0-11-generic x86_64 > UpgradeStatus: No upgrade log present (probably fresh install) > UserGroups: adm cdrom dip lpadmin plugdev sudo users > _MarkForUpload: True > dmi.bios.date: 12/20/2021 > dmi.bios.release: 5.24 > dmi.bios.vendor: Intel Corp. > dmi.bios.version: EDADL579.0046.2021.1220.2351 > dmi.board.name: NUC12EDBi7 > dmi.board.vendor: Intel Corporation > dmi.board.version: M27908-302 > dmi.chassis.type: 35 > dmi.chassis.vendor: Intel Corporation > dmi.chassis.version: 2.0 > dmi.ec.firmware.release: 3.7 > dmi.modalias: > dmi:bvnIntelCorp.:bvrEDADL579.0046.2021.1220.2351:bd12/20/2021:br5.24:efr3.7:svnIntel(R)ClientSystems:pnNUC12DCMi7:pvrM30143-302:rvnIntelCorporation:rnNUC12EDBi7:rvrM27908-302:cvnIntelCorporation:ct35:cvr2.0:skuRNUC12DCMi70000: > dmi.product.family: DC > dmi.product.name: NUC12DCMi7 > dmi.product.sku: RNUC12DCMi70000 > dmi.product.version: M30143-302 > dmi.sys.vendor: Intel(R) Client Systems > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2060268/+subscriptions > > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2060268 Title: Phantom "Unknown Display" shown in Settings after installing the Nvidia driver To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2060268/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
