[Bug 42490] NUTMEG DP to VGA bridge not working

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=42490

--- Comment #32 from diego.abelenda at gmail.com 2012-09-07 19:19:10 UTC ---
Created attachment 66808
  --> https://bugs.freedesktop.org/attachment.cgi?id=66808
dmesg booting with 2 monitors plugged drm.debug=4

This drm-fixes-3.6 branch just gives me two black screens when I have them both
plugged during the boot. And when X starts I get a 100% processor usage from
the X process and nothing displayed. The Xorg.0.log shows nothing out of the
ordinary. But I think there is something really wrong because my X server never
starts accepting connection from my login manager.

When I boot with only the DVI screen plugged, no problem it boots fine.
After having booted with only the DVI plugging the VGA one works just like
before.

When X puts my screens into DPMS off and I try to wake them up, the VGA goes
back on correctly with this branch whereas it didn't with vanilla kernel.

So there are some good points and some bad points.

Attached is dmesg | grep -e drm -e radeon when both screens are connected,
after X is "started".

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