This bug was fixed in the package ubuntu-drivers-common - 1:0.9.7.7
---------------
ubuntu-drivers-common (1:0.9.7.7) oracular; urgency=medium
* SRU (LP: #2076245)
* debian/tests/control
- change test dependencies from libgl1-mesa-glx to libglx-mesa0
(LP: #2071829)
* debian/control
- change repository links
* tests/test_ubuntu_drivers.py (synchronize repository)
- increase the timeout for test_system_driver_packages_performance
since for some reason it seems really slow but only on the builders
* UbuntuDrivers/detect.py
- Ensure that self._major_ver is an int
- Replace "udevadm hwdb" with systemd-hwdb
- Recommend hwe-*-meta for non-oem hardware enablement meta packages
* share/hybrid:
- Change Makefile to respect CC and CFLAGS environment variables
* share/hybrid/71-u-d-c-gpu-detection.rules
- Remove SimpleDRM device when nvidia-drm loads (LP: #2060268)
* share/hybrid/gpu-manager.c
- Wait for nvidia-drm to settle before opening /dev/dri/card* (LP: #2060268)
-- Kuba Pawlak <kuba.paw...@canonical.com> Wed, 24 Jul 2024 11:00:58
+0200
** Changed in: ubuntu-drivers-common (Ubuntu)
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/2060268
Title:
Phantom "Unknown Display" shown in Settings after installing the
Nvidia driver
Status in OEM Priority Project:
New
Status in linux package in Ubuntu:
Invalid
Status in nvidia-graphics-drivers-470 package in Ubuntu:
Won't Fix
Status in nvidia-graphics-drivers-535 package in Ubuntu:
Won't Fix
Status in nvidia-graphics-drivers-545 package in Ubuntu:
Won't Fix
Status in nvidia-graphics-drivers-550 package in Ubuntu:
Won't Fix
Status in ubuntu-drivers-common package in Ubuntu:
Fix Released
Status in ubuntu-drivers-common source package in Jammy:
In Progress
Status in ubuntu-drivers-common source package in Noble:
In Progress
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.
This also seems to be triggering bug 2062426 and bug 2066126.
[ 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
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