[Bug 105581] New: amdgpu: r9 380 Dual Monitor Setup: rotation not working

[Bug 105581] New: amdgpu: r9 380 Dual Monitor Setup: rotation not working

[bugzilla-daemon]

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.

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[Bug 105581] amdgpu: r9 380 Dual Monitor Setup: rotation not working

[bugzilla-daemon]

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

--- Comment #1 from f.otti@gmx.at ---
Created attachment 189571
  --> https://bugzilla.kernel.org/attachment.cgi?id=189571&action=edit
dmesg

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[Bug 105581] amdgpu: r9 380 Dual Monitor Setup: rotation not working

[bugzilla-daemon]

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

--- Comment #2 from Michel Dänzer <michel@daenzer.net> ---
FWIW, rotation doesn't work because glamor fails to initialize, so all hardware
acceleration is disabled (I posted a xf86-video-amdgpu patch to not advertise
rotation capability in this case). Looks like Mesa is either misconfigured or
too old for your card.

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[Bug 105581] amdgpu: r9 380 Dual Monitor Setup: rotation not working

[bugzilla-daemon]

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

--- Comment #3 from f.otti@gmx.at ---
(In reply to Michel Dänzer from comment #2)
> FWIW, rotation doesn't work because glamor fails to initialize, so all
> hardware acceleration is disabled (I posted a xf86-video-amdgpu patch to not
> advertise rotation capability in this case). Looks like Mesa is either
> misconfigured or too old for your card.

Thank you very much, I didn't notice that.
I searched for that problem and tried glxinfo which told me, that llvm version
3.6.1 was required, which I didn't know. So after installing it, the server
doesn't crash anymore upon trying to rotate the screen and it finally works.
It's probably still a bug that the monitors only work with the second DVI slot
and one in HDMI, but this works for me as well.
I'm not sure if I'd call it "resolved" but for me it's at least "workaround is
now good enough"

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[Bug 105581] amdgpu: r9 380 Dual Monitor Setup: rotation not working

[bugzilla-daemon]

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

Szőgyényi Gábor (szg0000@freemail.hu) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |szg0000@freemail.hu

--- Comment #4 from Szőgyényi Gábor (szg0000@freemail.hu) ---
Please try to reproduce this bug with latest kernel image.

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