[Bug 104881] New: AMDGPU FIJI doesn't support higher resolutions past 1920x1080

[Bug 104881] New: AMDGPU FIJI doesn't support higher resolutions past 1920x1080

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=104881

            Bug ID: 104881
           Summary: AMDGPU FIJI doesn't support higher resolutions past
                    1920x1080
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.3.0-rc2-1.g2b75354-desktop
          Hardware: Other
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: longshot902@gmail.com
        Regression: No

Created attachment 188111
  --> https://bugzilla.kernel.org/attachment.cgi?id=188111&action=edit
xrandr

I currently own two Dell P2715Q monitors, each having a native resolution of
3840x2160. When using DisplayPort on my AMD RADEON R9 FURY X, the resolution is
not a known option. I previously had an AMD RADON R9 290X and it was able to
detect the correct resolution of both monitors.

Attached is my xrandr --verbose" to show that the AMDGPU is not handling the
correct resolution available.

Please also note that while 1920x1080 is a selectable option, it is running in
interlaced mode, 1080i.

I have had some success with creating my own monitor xrandr profile for each
screen. It does temporarily resolve the issue, but it not persistent after a
restart or at login.

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[Bug 104881] AMDGPU FIJI doesn't support higher resolutions past 1920x1080

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=104881

--- Comment #1 from Jeff Nelson <longshot902@gmail.com> ---
Created attachment 188121
  --> https://bugzilla.kernel.org/attachment.cgi?id=188121&action=edit
Xorg.0.log

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[Bug 104881] AMDGPU FIJI doesn't support higher resolutions past 1920x1080

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=104881

--- Comment #2 from Jeff Nelson <longshot902@gmail.com> ---
Created attachment 188131
  --> https://bugzilla.kernel.org/attachment.cgi?id=188131&action=edit
dmesg

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[Bug 104881] AMDGPU FIJI doesn't support higher resolutions past 1920x1080

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=104881

Jeff Nelson <longshot902@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Hardware|Other                       |x86-64

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[Bug 104881] AMDGPU FIJI doesn't support higher resolutions past 1920x1080

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=104881

--- Comment #3 from Jeff Nelson <longshot902@gmail.com> ---
Before creation of this issue, I found a similar, almost identical, issue on
the freedesktop bugzilla. Found here:
https://bugs.freedesktop.org/show_bug.cgi?id=91896

A possible bug was disovered on comment 13:
https://bugs.freedesktop.org/show_bug.cgi?id=91896#c13

"OK, the problem seems to be that amdgpu_connector_is_dp12_capable returns
false because adev->clock.default_dispclk is set to 50000."

A patch was submitted here:
https://bugs.freedesktop.org/attachment.cgi?id=118844

Thanks!

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[Bug 104881] AMDGPU FIJI doesn't support higher resolutions past 1920x1080

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=104881

Jeff Nelson <longshot902@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |CODE_FIX

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