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Bug#846882: libdrm2: wrong scale for backlight with Xfce



Control: reassign -1 xserver-xorg-video-intel 2:2.99.917+git20161105-1~bpo8+1
Control: retitle -1 xserver-xorg-video-intel: wrong scale for backlight with Xfce

On Mon, Dec 05, 2016 at 06:37:28PM +0100, Rpnpif wrote:
> Hi,
> 
> Le  5 décembre 2016, Andreas Boll a écrit :
> 
> > Which older versions? Do you mean xserver-xorg-video-intel?
> > I guess it's related to the last upload of xserver-xorg-video-intel to
> > jessie-backports.
> 
> I spoke about the previous version in Jessie-backports. I do not
> remember the reference.

Can you try the previous xserver-xorg-video-intel backport version
2:2.99.917+git20160706-1~bpo8+1 from snapshot.d.o [1]?
> 
> I am not sure that xserver-xorg-video-intel is the culprit because
> lightdm works fine.

xserver-xorg-video-intel has some special backlight handling [2] so
it's plausible that an updated package could cause regressions related
to backlight.

> 
> Joined the logs.
> 
> Regards.
> 
> -- 
> Alain Rpnpif

> [    13.881] 
> X.Org X Server 1.16.4
> Release Date: 2014-12-20
> [    13.881] X Protocol Version 11, Revision 0
> [    13.881] Build Operating System: Linux 3.2.0-4-amd64 i686 Debian
> [    13.881] Current Operating System: Linux Asus-901 4.7.0-0.bpo.1-686-pae #1 SMP Debian 4.7.8-1~bpo8+1 (2016-10-19) i686
> [    13.881] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.7.0-0.bpo.1-686-pae root=UUID=2ed3bc82-5cc0-4529-a13c-2e6f80b5b588 ro resume=/dev/sdb1 quiet

snip

> [    14.063] (II) intel(0): Using Kernel Mode Setting driver: i915, version 1.6.0 20160425
> [    14.063] (II) intel(0): SNA compiled: xserver-xorg-video-intel 2:2.99.917+git20161105-1~bpo8+1 (Vincent Cheng <vcheng@debian.org>)

Reassigning to xserver-xorg-video-intel for now.

Thanks,
Andreas

[1] http://snapshot.debian.org/package/xserver-xorg-video-intel/
[2] https://cgit.freedesktop.org/xorg/driver/xf86-video-intel/log/?qt=grep&q=backlight

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