*** This bug is a duplicate of bug 1978905 ***
https://bugs.launchpad.net/bugs/1978905
Thanks. It looks like this is one of those cases where Nvidia is the
primary GPU with Intel secondary:
Mar 05 12:51:48 Goliat gnome-shell[2271]: Added device '/dev/dri/card2'
(nouveau) using non-atomic mode setting.
Mar 05 12:51:48 Goliat gnome-shell[2271]: Device '/dev/dri/card1' prefers
shadow buffer
Mar 05 12:51:48 Goliat gnome-shell[2271]: Added device '/dev/dri/card1' (i915)
using atomic mode setting.
Mar 05 12:51:48 Goliat gnome-shell[2271]: Created gbm renderer for
'/dev/dri/card2'
Mar 05 12:51:48 Goliat gnome-shell[2271]: Created gbm renderer for
'/dev/dri/card1'
Mar 05 12:51:48 Goliat gnome-shell[2271]: Boot VGA GPU /dev/dri/card2 selected
as primary
If your secondary monitor is plugged into the secondary GPU (Intel) then
that requires special support which was added in Mutter 46.5 and 47
which was only released in Ubuntu 24.10. Although even that was only
tested with the proprietary Nvidia driver and not with Nouveau.
Debugged in:
https://gitlab.gnome.org/GNOME/mutter/-/issues/2295#note_2232915
So that would make this a duplicate of bug 1978905 fixed in Ubuntu
24.10, assuming the fix that works for nvidia-drm also works for
nouveau.
** Bug watch added: gitlab.gnome.org/GNOME/mutter/-/issues #2295
https://gitlab.gnome.org/GNOME/mutter/-/issues/2295
** This bug has been marked a duplicate of bug 1978905
Reverse PRIME support for Wayland (Nvidia as primary GPU outputting to Intel
GPU display ports)
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https://bugs.launchpad.net/bugs/2100655
Title:
[nouveau] Second monitor shows only cursor visible when using Wayland
with Nouveau driver - Switching to Xorg solved issue
Status in mutter package in Ubuntu:
Incomplete
Bug description:
Your hardware: HP EliteDesk 800 G1 SFF with NVIDIA GT 620
Ubuntu version: 24.04
The issue: Second monitor works only with cursor visible when using
Wayland with Nouveau driver
The solution that worked: Switching to Xorg by setting
WaylandEnable=false in /etc/gdm3/custom.conf
The error message I found: "nouveau 0000:01:00.0: gr: DATA_ERROR
0000009c [] ch 5 [003f9dd000 gnome-shell[2932]] subc 0 class 9197 mthd
0d78 data 00000004"
Suggest that Ubuntu might want to improve detection of these older NVIDIA
cards and automatically switch to Xorg or provide a notification to users
experiencing the issue.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: xorg 1:7.7+23ubuntu3
ProcVersionSignature: Ubuntu 6.11.0-17.17~24.04.2-generic 6.11.11
Uname: Linux 6.11.0-17-generic x86_64
NonfreeKernelModules: zfs
ApportVersion: 2.28.1-0ubuntu3.3
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sat Mar 1 12:51:37 2025
DistUpgraded: Fresh install
DistroCodename: noble
DistroVariant: ubuntu
DpkgLog:
GraphicsCard:
Subsystem: Hewlett-Packard Company EliteDesk 800 G1 [103c:1998]
NVIDIA Corporation GF108 [GeForce GT 620] [10de:0f01] (rev a1) (prog-if 00
[VGA controller])
Subsystem: Gigabyte Technology Co., Ltd GF108 [GeForce GT 620] [1458:3547]
InstallationDate: Installed on 2024-08-10 (203 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
MachineType: Hewlett-Packard HP EliteDesk 800 G1 SFF
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.11.0-17-generic
root=UUID=918c2851-4a60-4bfe-bc42-25f1ad513db7 ro quiet splash
nouveau.modeset=1 vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/09/2013
dmi.bios.release: 2.18
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: L01 v02.18
dmi.board.asset.tag: TRF3480BGY
dmi.board.name: 1998
dmi.board.vendor: Hewlett-Packard
dmi.chassis.asset.tag: TRF3480BGY
dmi.chassis.type: 4
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvrL01v02.18:bd09/09/2013:br2.18:svnHewlett-Packard:pnHPEliteDesk800G1SFF:pvr:rvnHewlett-Packard:rn1998:rvr:cvnHewlett-Packard:ct4:cvr:skuH5U03EA#ACQ:
dmi.product.family: 103C_53307F G=D
dmi.product.name: HP EliteDesk 800 G1 SFF
dmi.product.sku: H5U03EA#ACQ
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.122-1~ubuntu0.24.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 24.2.8-1ubuntu1~24.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.12-1ubuntu1.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:22.0.0-1build1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20210115-1build1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.17-2build1
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