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Running XFCE.
Everytime I boot into the system, the screen brightness is at 100%. I can adjust it with the fn key, but I am getting tired of opening the flashbang I call my laptop. Wiki says that the systemd-backlight service should have this covered. It does not.
systemd-backlight@backlight:acpi_video0.service - Load/Save Screen Backlight Brightness of backlight:acpi_video0
Loaded: loaded (/usr/lib/systemd/system/systemd-backlight@.service; static)
Active: active (exited) since Tue 2014-08-19 18:40:25 EDT; 41min ago
Docs: man:systemd-backlight@.service(8)
Process: 315 ExecStart=/usr/lib/systemd/systemd-backlight load %i (code=exited, status=0/SUCCESS)
Main PID: 315 (code=exited, status=0/SUCCESS)
This is also my first post. Bare with me.
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This does not have to do with systemd-backlight exiting (this is normal, the service adjusts the brightness and then exits). This appears to be a problem with your display manager. GDM, for instance, switches brightness to 100% right after logging out, so when systemd-backlight saves the brightness before rebooting or halting, it is always at 100%. You can check this yourself by paying attention to the brightness when rebooting.
Check this thread for potential workarounds: https://bbs.archlinux.org/viewtopic.php?id=149316
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Running XFCE.
Everytime I boot into the system, the screen brightness is at 100%. I can adjust it with the fn key, but I am getting tired of opening the flashbang I call my laptop. Wiki says that the systemd-backlight service should have this covered. It does not.
If you have an Intel GPU, mask systemd-backlight@intel-backlight.service
Bare with me.
No thank you, you are not my type.
Sorry, I just couldn't bear[1] the temptation...
[1] See the 6th entry in the verb section...
I break things and put them back together for fun and sometimes profit, because it is the only way to learn.
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If you have an Intel GPU, mask systemd-backlight@intel-backlight.service
Nope. Nvidia.
No thank you, you are not my type.
Sorry, I just couldn't bear[1] the temptation...
[1] See the 6th entry in the verb section...
Touche. Good catch.
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This does not have to do with systemd-backlight exiting (this is normal, the service adjusts the brightness and then exits). This appears to be a problem with your display manager. GDM, for instance, switches brightness to 100% right after logging out, so when systemd-backlight saves the brightness before rebooting or halting, it is always at 100%. You can check this yourself by paying attention to the brightness when rebooting.
Check this thread for potential workarounds: https://bbs.archlinux.org/viewtopic.php?id=149316
Where can I find the XFCE version of this?
Correction. I am running SLiM. Didn't see anything pertaining to brightness within /etc/slim.conf though.
Last edited by abennett (2014-08-22 03:07:23)
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Hmm, in other thread someone mentions this might be related to the kernel: https://bbs.archlinux.org/viewtopic.php … 6#p1449446
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I've never changed the kernel. Is there anything I should be aware of prior to making the switch (via PKGBUILD and pacman)?
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Keep the previous kernel package and a Live-CD around in case things go awry.
Last edited by Pse (2014-08-22 23:05:41)
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