Mailinglist Archive: opensuse-factory (807 mails)

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[opensuse-factory] Re: X broken with 20170204, system unusable
On Tue 07 Feb 2017 03:21:44 PM CST, Stratos Zolotas wrote:

On Tue, Feb 7, 2017 at 2:48 PM, Felix Miata <mrmazda@xxxxxxxxxxxxx>

Does the segfault go away if you uninstall all AMD/ATI/Radeon
drivers (thus triggering use of the modeset(0) driver integral to
the server)?

Removing xf86-video-amdgpu and xf86-video-ati makes X to start as
expected. Had to reconfigure my layout although due to changed in vga
output numbering.

What is the best to have the integral driver or the provided packages
and what are the differences? I'm a little confused on that area...
Based on my experience with my Mullins R5 (GCN 1.1) card your cards
are GCN 1.0, and guess fight for driver control, I needed to create
a /etc/X11/xorg.conf.d/20-amdgpu.conf file containing;

Section "Device"
Identifier "AMD Graphics Core Next GPU"
Driver "amdgpu"
Option "DRI" "3"
Option "TearFree" "true"

And blacklist the radeon driver with a /etc/modprobe.d/50-radeon.conf
file containing;

blacklist radeon

Rebuild initrd with mkinitrd and reboot....

You need to re-install the xf86-video-amdgpu package of course.

You may or may not want the TearFree option.

Else look at blacklisting the amdgpu instead and sticking with radeon.

Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
openSUSE Leap 42.1|GNOME 3.16.2|4.1.36-44-default
up 1 day 11:53, 4 users, load average: 0.19, 0.26, 0.31
CPU AMD Athlon(tm) II X4 635 @ 2.90GHz | GPU Nvidia GeForce 8800 GT

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