** Also affects: nvidia-graphics-drivers-440 (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: nvidia-graphics-drivers-440 (Ubuntu Focal)
Assignee: (unassigned) => Alberto Milone (albertomilone)
** Changed in: nvidia-graphics-drivers-440 (Ubuntu)
Assignee: (unassigned) => Alberto Milone (albertomilone)
** Changed in: nvidia-graphics-drivers-440 (Ubuntu)
Status: New => Triaged
** Changed in: nvidia-graphics-drivers-440 (Ubuntu Focal)
Status: New => Triaged
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-440 in Ubuntu.
https://bugs.launchpad.net/bugs/1885087
Title:
Can't keep brightness value after reboot/poweroff in some nvidia gfx
Status in OEM Priority Project:
Confirmed
Status in OEM Priority Project focal series:
New
Status in nvidia-graphics-drivers-440 package in Ubuntu:
Triaged
Status in nvidia-graphics-drivers-440 source package in Focal:
Triaged
Bug description:
systemd-backlight saves the brightness value right before
shutdown.target, however it doesn't work because the nvidia_0
backlight sysfs disappears after GFX device is closed by Xorg, long
before shutdown.target.
[Impact]
System can not keep the brightness value, after reboot/poweroff the
brightness will still be highest.
[Fix]
Suggested by Nvidia, we need to run nvidia-persistenced.service before
systemd-backlight@backlight:nvidia_0.service
[Test Case]
Adjust the brightness value, reboot, the value must keep persistence during
boots.
[Regression Risk]
Low, this fix is just adjust the systemd order more earier.
https://github.com/hugh712/nvidia-graphics-drivers
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