[Bug 94315] AMDGPU 290X Refresh rate issue at 144Hz

[Bug 94315] AMDGPU 290X Refresh rate issue at 144Hz

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https://bugs.freedesktop.org/show_bug.cgi?id=94315

            Bug ID: 94315
           Summary: AMDGPU 290X Refresh rate issue at 144Hz
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: dherault@hotmail.com

Created attachment 121993
  --> https://bugs.freedesktop.org/attachment.cgi?id=121993&action=edit
xrandr + OSD 139Hz

Hello,

I have Arch linux with an asus MG279Q (27 "144Hz) connected in DisplayPort 1.2.
Everything worked with Sapphire 7950 and also R9 Fury. 
Unfortunately I have trouble with my Sapphire 290x. I've tested three 290X to
be sure it's not an hardware issue. 
Of course freesync is off.
I just tested the combo with multiple users 290 (X and not X) + MG279Q.
Sometimes on livecd. Everyone have the issue.

I can't have a real 144Hz with the amdgpu or radeon driver. Everything work
only @60Hz or with FGLRX driver.
At 144Hz , i have a bad 139Hz with artifacts :
http://reho.st/self/b98c1c955cb7d42c3af6f82ea71bbc94be8aee6a.jpg

Glitches on the left. Blur on all screen, Text glitches...

What i've tried :
- Windows 10 : All works !
- FGLRX : All works @144Hz. But other problems make it difficult to use: in
firefox lag among others ... And I love the free driver! Finally ... When he
worked with my 7950
- Kernel mainline : Same issue .
- New mode line with cvt 2560 1440 144 and xrandr --newmode : Same issue.
- Contact Sapphire and upload to a new vbios : Same issue and as long as it
works on windows it's not their problem...

It can be an incompatibility between the MG279Q and the 290X on linux. But
something in FGLRX make my 290X works, but not present on AMDGPU/Radeon driver.

I just tested the combo with multiple users 290 (X and not X) + MG279Q.
Sometimes on livecd. Everyone have the issue.

Thanks for your help

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[Bug 94315] AMDGPU 290X Refresh rate issue at 144Hz

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https://bugs.freedesktop.org/show_bug.cgi?id=94315

--- Comment #1 from Damien <dherault@hotmail.com> ---
Created attachment 121994
  --> https://bugs.freedesktop.org/attachment.cgi?id=121994&action=edit
text

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[Bug 94315] AMDGPU 290X Refresh rate issue at 144Hz

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https://bugs.freedesktop.org/show_bug.cgi?id=94315

--- Comment #2 from Damien <dherault@hotmail.com> ---
Created attachment 121995
  --> https://bugs.freedesktop.org/attachment.cgi?id=121995&action=edit
Text2

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[Bug 94315] AMDGPU 290X Refresh rate issue at 144Hz

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https://bugs.freedesktop.org/show_bug.cgi?id=94315

--- Comment #3 from Damien <dherault@hotmail.com> ---
Created attachment 121996
  --> https://bugs.freedesktop.org/attachment.cgi?id=121996&action=edit
Left pixel repeat

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[Bug 94315] AMDGPU 290X Refresh rate issue at 144Hz

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 284 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=94315

--- Comment #4 from Damien <dherault@hotmail.com> ---
Created attachment 121997
  --> https://bugs.freedesktop.org/attachment.cgi?id=121997&action=edit
Left

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[Bug 94315] AMDGPU 290X Refresh rate issue at 144Hz

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=94315

--- Comment #5 from Damien <dherault@hotmail.com> ---
Created attachment 121998
  --> https://bugs.freedesktop.org/attachment.cgi?id=121998&action=edit
290X tested

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[Bug 94315] AMDGPU 290X Refresh rate issue at 144Hz

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https://bugs.freedesktop.org/show_bug.cgi?id=94315

--- Comment #6 from Damien <dherault@hotmail.com> ---
Issue on all kernels + AMDGPU and Radeon driver. But i'm actually on mainline/
AMDGPU CIK

Ok on Catalyst FGLRX.

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[Bug 94315] AMDGPU 290X Refresh rate issue at 144Hz

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https://bugs.freedesktop.org/show_bug.cgi?id=94315

Alex Deucher <alexdeucher@gmail.com> changed:

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

--- Comment #7 from Alex Deucher <alexdeucher@gmail.com> ---


*** This bug has been marked as a duplicate of bug 93826 ***

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