[Bug 66871] Radeon multi-screen intermittent display failure

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=66871

--- Comment #9 from Erik Edwards <erik at emedwards.info> ---
(In reply to Alex Deucher from comment #8)
> Can you use git to bisect what commit caused the regression?  Google for git
> bisect howto.

3.12.5

Found a workaround:

Allow nromal boot to graphical environment with all monitors powered on. After
GUI login is displayed and DVI connected monitor is blank do <ctrl><alt>F2 to
switch to text console. Wait until all working displayas are stable then power
off and power on non-fucntional display via its power button. Wait until all
displays are stable then return to GUI.

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