Public bug reported:
The current /lib/udev/rules.d/61-gdm.rules has a broken rule for
detecting the presence of NVIDIA_PRESERVE_VIDEO_MEMORY_ALLOCATIONS=1.
This issue can be seen by adding a file /etc/modprobe.d/nvidia-power-
management.conf containing the line...
options nvidia NVreg_PreserveVideoMemoryAllocations=1
and then rebooting. Manually executing the test used in
/lib/udev/rules.d/61-gdm.rules as...
/bin/sh -c "sed -e 's/: /=/g' -e
's/\([^[:upper:]]\)\([[:upper:]]\)/\1_\2/g' -e 's/[[:lower:]]/\U&/g' -e
's/^/NVIDIA_/' /proc/driver/nvidia/params"
produces the desired...
NVIDIA_PRESERVE_VIDEO_MEMORY_ALLOCATIONS=1
for the actual test in /lib/udev/rules.d/61-gdm.rules of...
IMPORT{program}="/bin/sh -c \"sed -e 's/: /=/g' -e
's/\([^[:upper:]]\)\([[:upper:]]\)/\1_\2/g' -e 's/[[:lower:]]/\U&/g' -e
's/^/NVIDIA_/' /proc/driver/nvidia/params\""
ENV{NVIDIA_PRESERVE_VIDEO_MEMORY_ALLOCATIONS}!="1", GOTO="gdm_disable_wayland"
However, this test still is treated as failing as seen by the absence of
Wayland on Nvidia at that point. Currently, the only workaround is to
disable this particular test.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: gdm3 42.0-1ubuntu6
ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
Uname: Linux 5.15.0-27-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Apr 19 05:20:49 2022
InstallationDate: Installed on 2022-03-31 (18 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Alpha amd64 (20220326)
ProcEnviron:
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: gdm3
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.gdm3.custom.conf: 2022-04-01T05:39:42.178574
** Affects: gdm3 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug jammy third-party-packages
** Description changed:
The current /lib/udev/rules.d/61-gdm.rules has a broken rule for
detecting the presence of NVIDIA_PRESERVE_VIDEO_MEMORY_ALLOCATIONS=1.
This issue can be seen by adding a file /etc/modprobe.d/nvidia-power-
management.conf containing the line...
options nvidia NVreg_PreserveVideoMemoryAllocations=1
- and then rebooting. Since manually executing the test used in
+ and then rebooting. Manually executing the test used in
/lib/udev/rules.d/61-gdm.rules as...
/bin/sh -c "sed -e 's/: /=/g' -e
's/\([^[:upper:]]\)\([[:upper:]]\)/\1_\2/g' -e 's/[[:lower:]]/\U&/g' -e
's/^/NVIDIA_/' /proc/driver/nvidia/params"
produces the desired...
NVIDIA_PRESERVE_VIDEO_MEMORY_ALLOCATIONS=1
for the actual test in /lib/udev/rules.d/61-gdm.rules of...
IMPORT{program}="/bin/sh -c \"sed -e 's/: /=/g' -e
's/\([^[:upper:]]\)\([[:upper:]]\)/\1_\2/g' -e 's/[[:lower:]]/\U&/g' -e
's/^/NVIDIA_/' /proc/driver/nvidia/params\""
ENV{NVIDIA_PRESERVE_VIDEO_MEMORY_ALLOCATIONS}!="1", GOTO="gdm_disable_wayland"
However, this test still is treated as failing as seen by the absence of
Wayland on Nvidia at that point. Currently, the only workaround is to
disable this particular test.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: gdm3 42.0-1ubuntu6
ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
Uname: Linux 5.15.0-27-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Apr 19 05:20:49 2022
InstallationDate: Installed on 2022-03-31 (18 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Alpha amd64 (20220326)
ProcEnviron:
- PATH=(custom, no user)
- XDG_RUNTIME_DIR=<set>
- LANG=en_US.UTF-8
- SHELL=/bin/bash
+ PATH=(custom, no user)
+ XDG_RUNTIME_DIR=<set>
+ LANG=en_US.UTF-8
+ SHELL=/bin/bash
SourcePackage: gdm3
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.gdm3.custom.conf: 2022-04-01T05:39:42.178574
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https://bugs.launchpad.net/bugs/1969447
Title:
42.0-1ubuntu6 doesn't recongize the presence of
NVIDIA_PRESERVE_VIDEO_MEMORY_ALLOCATIONS=1
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