Arch Linux

hb860

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Registered: 2014-09-12

Posts: 81

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[SOLVED] xf86-video-intel-2.99.916-1 driver issue

Hi, I am running Arch Linux on i3 processor with integrated video. Yesterday I updated the following package  "xf86-video-intel" and the ability to set the desired gamma with the xgamma app is gone. I guess it is a bug in driver. I rolled back the driver by the following command

pacman -U /var/cache/pacman/pkgs/xf86-video-intel-2.99.914-4-x86_64.pkg.tar.xz

This resolved my issue, xgamma works again.
Can anybody confirm this bug? And where we should report it?

Last edited by hb860 (2014-10-03 21:10:05)

ooo

Member

Registered: 2013-04-10

Posts: 1,638

Re: [SOLVED] xf86-video-intel-2.99.916-1 driver issue

xorg-xgamma-1.0.5-2 from official repositories works fine for me with xf86-video-intel-2.99.916-1

do you get any error messages or anything in journal that could give some clue?

hb860

Member

Registered: 2014-09-12

Posts: 81

Website

Re: [SOLVED] xf86-video-intel-2.99.916-1 driver issue

Nope!
If i run:

hb860@main:~$ xgamma -gamma 2

I expect the following:

-> Red  1.000, Green  1.000, Blue  1.000
<- Red  2.000, Green  2.000, Blue  2.000

However, with 2.99.916-1 i got this:

-> Red  1.000, Green  1.000, Blue  1.000
<- Red  1.000, Green  1.000, Blue  1.000

Very strange.
P.S.

hb860@main:~$ pacman -Sl | grep xgamma
extra xorg-xgamma 1.0.5-2 [installed]

Last edited by hb860 (2014-09-13 07:11:41)

hb860

Member

Registered: 2014-09-12

Posts: 81

Website

Re: [SOLVED] xf86-video-intel-2.99.916-1 driver issue

Tried 2.99.916-2, the problem is still here.
Sucks.

hb860

Member

Registered: 2014-09-12

Posts: 81

Website

Re: [SOLVED] xf86-video-intel-2.99.916-1 driver issue

Well, it still not works with 916.3
I heard that xgamma is the obsolte stuff
Here is a "modern" solution:

xrandr --output VGA1 --brightness 2.0

Works like a charm

hb860

Member

Registered: 2014-09-12

Posts: 81

Website

Re: [SOLVED] xf86-video-intel-2.99.916-1 driver issue

That xrandr does not preserve the brightness settings if you start some OpenGL game (ioquake etc).
What the crap...
I figured out the cause of all my xgamma issues.
Intel has changed the acceleration method in the latest drivers.
It is possible to switch back to the old method (until it will not be abandoned/discontinued).
Put this into /etc/X11/xorg.conf.d/99-intel.conf:

Section "Device"
   Identifier  "Intel Graphics"
   Driver      "intel"
   Option      "AccelMethod"  "uxa"
EndSection

After X restart, you will be able to use xgamma as usual.
We have nice Wiki about it: https://wiki.archlinux.org/index.php/In … SNA_issues

Last edited by hb860 (2014-11-25 20:38:07)