[Bug 82781] Option to disable mclk reclocking with AMD R9 280X (TAHITI) to avoid screen flickering on VGA/CRT

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=82781

Alex Deucher <alexdeucher at gmail.com> changed:

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                 CC|                            |alexdeucher at gmail.com

--- Comment #1 from Alex Deucher <alexdeucher at gmail.com> ---
Created attachment 147291
  --> https://bugzilla.kernel.org/attachment.cgi?id=147291&action=edit
add some debugging output

I'd rather try and fix this properly.  Is it only a problem with specific
monitors?  If so which ones?  Please attach your xorg log and dmesg output. 
Please apply the attached patch and attach your dmesg output with it applied
when the problematic monitor is attached and you see the flickering.

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