Mailinglist Archive: opensuse-factory (562 mails)

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Re: [opensuse-factory] Tumbleweed snapshot 20170112 - hanging Plasma, broken extended display
Stratos Zolotas composed on 2017-01-16 14:29 (UTC+0200):

I have a similar issue. Although I'm not experiencing any delays, I
lost my 3 monitor setup. 2 monitors are connected on on Radeon GPU and
another one on a second Radeon GPU. The second GPU is not activated at
all (although during boot it is initialized).

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
[AMD/ATI] Oland XT [Radeon HD 8670 / R7 250/350]
02:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
[AMD/ATI] Oland PRO [Radeon R7 240/340]

xrandr -q
Screen 0: minimum 320 x 200, current 3200 x 1080, maximum 16384 x 16384
HDMI-0 connected 1280x1024+1920+0 (normal left inverted right x axis y
axis) 341mm x 274mm
1280x1024 60.02 + 75.02*
1280x960 60.00
1152x864 75.00
1024x768 75.03 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
640x480 75.00 72.81 66.67 59.94
720x400 70.08
DVI-0 disconnected (normal left inverted right x axis y axis)
VGA-0 connected primary 1920x1080+0+0 (normal left inverted right x
axis y axis) 480mm x 270mm
1920x1080 60.00*+
1680x1050 59.95
1400x1050 59.98
1600x900 60.00
1280x1024 75.02 60.02
1440x900 59.89
1280x800 59.81
1152x864 75.00
1280x720 60.00
1024x768 75.03 60.00
800x600 75.00 60.32
640x480 75.00 59.94
720x400 70.08

No third screen is displayed

Complete xorg.log here: https://paste.opensuse.org/86455566

I cannot find something there but maybe someone more experienced can.

Preferred FOSS Xorg drivers have been transitioning[1] from discrete gfxchip-specific to the generic modesetting driver that was moved from a separate package directly into Xorg back in server 1.17. You might try uninstalling the AMD/ATI/Radeon driver (xf86-video-ati) to see if automatic use of the third display is restored by the consequent automatic employment of the integrated Xorg modesetting driver with non-ancient, non-bleeding edge gfxchips.

[1] https://lists.opensuse.org/opensuse-factory/2017-01/msg00163.html
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