[Bug 98751] radeon: multihead "no signal" on one of the monitors - regression

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Mon May 25 04:16:28 PDT 2015


Andy Furniss <adf.lists at gmail.com> changed:

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--- Comment #9 from Andy Furniss <adf.lists at gmail.com> ---
I just hit this one with my R9270X.

Reverting "drm/radeon: adjust pll when audio is not enabled" fixes it.

For me starting with DVI on and enabling HDMI results in loosing DVI. If I off
then auto DVI it comes back but HDMI goes off, repeat for HDMI = DVI off again
and so on.

I did find a way to get both working = xset dpms force off 
then coming out of dpms both will come on an behave as if nothing was ever
wrong (I can flip either on/off without affecting the other).

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