3.7.1 kernel gives me backlight issues. (intel)

usrjames · 2013-01-21 16:09:44

the new kernel gives me backlight issues, i cant adjust it. when testing 3.7.1 i noticed this so went back to 3.6.11, but now that 3.7.1 is the official arch kernel now i need to figure this out. I have tried everything in the wiki if anyone had the same issue as me and as solved this could you please share how you did it.

qchapter · 2013-01-21 16:26:42

Have you tried xbacklight on the cli?

pacman -S xorg-xbacklight

xbacklight [+-][an integer]

Example:

xbacklight -20

Thanks,

Kevin

Last edited by qchapter (2013-01-21 16:27:17)

usrjames · 2013-01-21 16:29:33

qchapter wrote:

Have you tried xbacklight on the cli?
pacman -S xorg-xbacklight
xbacklight [+-][an integer]
Example:
xbacklight -20
Thanks,
Kevin

i have tried this and it didnt work. also just to make sure i just tried it again.

qchapter · 2013-01-21 16:36:09

Hmm... works fine for me on kernel 3.7.3-1-ARCH #1 SMP PREEMPT Thu Jan 17 18:52:30 CET 2013 x86_64 GNU/Linux on a zenbook prime with intel graphics. Have you run a pacman -Syu lately to ensure you are on the lastest kernel and intel driver?

usrjames · 2013-01-21 16:57:07

yes, everyday. and i have also tried the intel driver in testing as well.

also my graphics card is: Intel HD Graphics 4000

lspci

00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)

Last edited by usrjames (2013-01-21 16:59:46)

qchapter · 2013-01-21 17:26:13

And is your user a member of the video and power groups?

usrjames · 2013-01-21 17:29:51

ok this is solved, intel_backlight is working, just a hassle to type that out every time i need to adjust brightness. i talked to someone with intel hd 3000 and it works fine guess its just intel hd 4000

sudo echo "400" > /sys/class/backlight/intel_backlight/brightness

how could i make it persistent after boot?

Last edited by usrjames (2013-01-21 20:04:02)

qchapter · 2013-01-21 21:42:58

Since Arch uses systemd now, you could create a custom hook for that:

https://wiki.archlinux.org/index.php/In … stom_hooks

usrjames · 2013-01-21 22:08:38

i made a udev rule, but im just going to continue to run 3.6.11 because there is other issues as well, my comp stayed at over 50% cpu it usually runs 1% idle, and because of that stayed over 50 C. ill stick with 3.6.11 because that just two things i noticed. probibly would find more issues, ill wait for an update and check and see if it fixed these issues.

edit: well since 3.7.3 is in official repo i desided to make udev rule, still irritates me. but 3.7.4 seem to work a little better, 3.7.3 my cpu was running at 50% idle...

Last edited by usrjames (2013-01-23 06:48:10)

Arch Linux

#1 2013-01-21 16:09:44

3.7.1 kernel gives me backlight issues. (intel)

#2 2013-01-21 16:26:42

Re: 3.7.1 kernel gives me backlight issues. (intel)

#3 2013-01-21 16:29:33

Re: 3.7.1 kernel gives me backlight issues. (intel)

#4 2013-01-21 16:36:09

Re: 3.7.1 kernel gives me backlight issues. (intel)

#5 2013-01-21 16:57:07

Re: 3.7.1 kernel gives me backlight issues. (intel)

#6 2013-01-21 17:26:13

Re: 3.7.1 kernel gives me backlight issues. (intel)

#7 2013-01-21 17:29:51

Re: 3.7.1 kernel gives me backlight issues. (intel)

#8 2013-01-21 21:42:58

Re: 3.7.1 kernel gives me backlight issues. (intel)

#9 2013-01-21 22:08:38

Re: 3.7.1 kernel gives me backlight issues. (intel)

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