Created attachment 102648 [details] sudo lshw -sanitize Recently installed a R9 270x on my system. For the life of me, I cannot determine what is wrong. The BIOS uses it by default, during early boot the system uses it, but during the VT switchoff, my system switches to APU graphics during a series of GPU page faults. Also, when running startxfce, the first time after boot fails, and the following uses only the APU graphics. sudo lshw -sanitize > http://pastebin.com/tkihM4rH sudo journalctl -b -kxam > http://pastebin.com/EJcwcYU6 cat /var/log/Xorg.0.log > http://pastebin.com/wCbzws9d cat /var/log/Xorg.o.log.old > http://pastebin.com/GaAL5Tqa Xorg is working on auto.
Created attachment 102649 [details] sudo journalctl -b -kxam
Created attachment 102650 [details] Xorg.0.log
Created attachment 102651 [details] Xorg.0.log.old
I would start at <KERNEL ROOT>/drivers/gpu/drm/radeon/radeon_fence.c:368 since that is the clause being hit. So on line 364 on iteration 5 (the last) radeon_ring_is_lockup returns true. The function's definition is beyond me, so that's where I'll have to leave you off.
You should try disabling the APU from the BIOS.
That is not a BIOS option.
Re-read the manual. There is an option...albeit described as something else.
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