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Kernel 4.4.26 does not detect Second Screen with i915d
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jwacalex
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PostPosted: Wed Oct 26, 2016 3:54 pm    Post subject: Kernel 4.4.26 does not detect Second Screen with i915d Reply with quote

Good Day,
I had the same issue with Kernel 4.4.6 but using a current kernel does not solve it.

The second screen is connected but not recognized as such.

During boottime I see the console on both screens with 4.0.5 but on 4.4.26 only one

Code:
ls /sys/class/drm
card0  card0-HDMI-A-1  card0-HDMI-A-2  card0-VGA-1  controlD64  renderD128  version


Code:
xrandr
Screen 0: minimum 8 x 8, current 1280 x 1024, maximum 32767 x 32767
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 380mm x 300mm
   1280x1024     60.02*+  75.02    72.05
   1152x864      75.00
   1024x768      75.08    70.07    60.00
   832x624       74.55
   800x600       72.19    75.00    60.32
   640x480       75.00    72.81    66.67    60.00
   720x400       70.08
   640x350       70.07
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
Screen 0: minimum 8 x 8, current 1280 x 1024, maximum 32767 x 32767
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 connected primary 1280x1024+0+0 (normal left inverted right x axis y axis) 380mm x 300mm
   1280x1024     60.02*+  75.02    72.05
   1152x864      75.00
   1024x768      75.08    70.07    60.00
   832x624       74.55
   800x600       72.19    75.00    60.32
   640x480       75.00    72.81    66.67    60.00
   720x400       70.08
   640x350       70.07
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)


I've tried to run xorg with an empty configuration but it does not solve the problem.
If I'm trying to run X -configure i'll get the following result:

Code:
X.Org X Server 1.18.4
Release Date: 2016-07-19
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.0.5-gentoo x86_64 Gentoo
Current Operating System: Linux 4.4.26-gentoo#1 SMP Wed Oct 26 15:47:53 CEST 2016 x86_64
Kernel command line: BOOT_IMAGE=/kernel-pentagram-x86_64-4.4.26-gentoo root=/dev/md127 ro domdadm
Build Date: 22 September 2016  08:30:23PM

Current version of pixman: 0.34.0
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Wed Oct 26 17:51:26 2016
List of video drivers:
        intel
        modesetting
No devices to configure.  Configuration failed.
(EE) Server terminated with error (2). Closing log file.
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Roman_Gruber
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Joined: 03 Oct 2006
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Location: Austro Bavaria

PostPosted: Wed Oct 26, 2016 6:19 pm    Post subject: Reply with quote

I think kernel 4.8.4 is recent. The others are antique with backported features / security bugfixes

May I ask why you have to use kernel 4.4.x ?

Personal opinion => these are antique kernels 4.0.5 but on 4.4.26 only one . When you do not have a use for those please update.

Are there any bad configured xorg.conf / other config files lying around which may cause issues?
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jwacalex
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Joined: 22 Apr 2014
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PostPosted: Wed Oct 26, 2016 11:41 pm    Post subject: Reply with quote

I'm using this kernel version because it's the latest my portage tree provides (without unmasking). Furthermore I do not assume that there is a bad xorg.conf because i've tried it with a default one
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Roman_Gruber
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PostPosted: Thu Oct 27, 2016 12:08 pm    Post subject: Reply with quote

You are aware of that newer kernel sometimes fix issues regarding hardware compatibility / bugs / security ...

There is nothing wrong to unmask gpu driver / kernel.

Choice is up to you

First thing what you get asked on bugs.kernel.org is to try with latest kernel. so ..
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jwacalex
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PostPosted: Thu Oct 27, 2016 12:32 pm    Post subject: Reply with quote

I'll give it a try tonight and report back
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