Comment # 6
on bug 106199
from Öyvind Saether
two more notes. a) my desktop with rx 470 and 3x4k monitors (HDMI/DP/DP) does not have this problem with amdgpu.dc=1 and kernel 4.16.4. b) my htpc with 2400g and rx 560 and one screen connected with DP totally has this problem with both 4.16.4 and 4.17rc2, logging out from xfce does not load lightdm correctly; instead screen turns into some sort of modern art. When this happens I can't switch to terminal with ctrl-alt-f2 BUT if I 1) turn the screen off 2) turn it on again then I can get to a terminal by ctrl-alt-f2 and go back to lightdm with ctrl-alt-f1 and it shows correctly and normally instead of modern art. c) I tried attaching another monitor to the rx 560 and both monitors turned into modern art upon logout. I just tried this to see if number of monitors matters. There's some reason one box with rx470 works fine and two with rx560 and rx580 have this problem.
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