[Bug 58121] Radeon SUMO: LVDS panel blanks when enabling external monitor

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=58121

--- Comment #5 from Alex Deucher <alexdeucher at gmail.com> ---
(In reply to 黄家垚 from comment #4)
> This also appeared on my laptop(A6 3400M and A8 3500M) with Linux 3.5.0 to
> 3.11. For using external monitor, i can only use Linux 3.4.x. I an looking
> forward to use newer Linux kernel on my laptop.

Can you bisect?

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