https://bugzilla.kernel.org/show_bug.cgi?id=105581

Bug ID: 105581 Summary: amdgpu: r9 380 Dual Monitor Setup: rotation not working Product: Drivers Version: 2.5 Kernel Version: 4.2.2, 4.3-rc3, 4.3-rc4 Hardware: Intel OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: f.otti@gmx.at Regression: No

Created attachment 189561 --> https://bugzilla.kernel.org/attachment.cgi?id=189561&action=edit Xorg log of 4.3.rc3

Lengthy explanation posted here: https://forums.gentoo.org/viewtopic-p-7824374.html

Dual Monitor setup doesn't seem to work at all when both are connected via DVI. When one is connected to HDMI and the other to the first DVI, dual monitor only works when one of them is connected after boot. Both only work when one is connected to HDMI and the other to the second DVI. With neither configuration does rotating any screen work. Results in crash of the X server (attachment). Everything works as intended under Windows.

What I mean with "dual monitor is not working" is that both screens are recognized as connected but one of the screens shows only a black picture, but I can move applications to it (which I can't see).

Steps to reproduce: Boot computer and try to rotate one of the screens with the KDE system settings or xrandr.