https://bugs.freedesktop.org/show_bug.cgi?id=36516
Summary: Problem with both VGA and HDMI active.
Product: xorg
Version: unspecified
Platform: Other
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: Driver/Radeon
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
Originally I had this computer connected, via VGA and DVI, to two monitors. It
worked fine with those two monitors in the following configurations:
VGA/DVI
DVI/HDMI
HDMI/DVI
I could even disable VGA and enable HDMI to get a third monitor working at the
expense of the second (42" TV on HDMI).
I have moved it and connected it to two monitors - Dell E1910H (VGA only) and a
Westinghouse 42" LCD TV (HDMI only). The follow is observed:
Boot with both plugged in results in a spew of EDID errors and no TV. HDMI
cannot be enabled. VGA works fine.
Boot with only TV plugged in and it works fine - EDID is correct.
Then plug in the VGA (after booting with HDMI working). Using xrandr activate
the VGA:
xrandr --output VGA-0 --auto
and the VGA comes up but the HDMI disconnects.
So I know the HDMI connector, cable, and TV are fine as that works if I boot
with only that plugged in. Plugging in the VGA ensures the HDMI doesn't work
but the VGA comes up.
Strange given the card was able to do that with a different VGA monitor in the
past. Something funny with that DELL monitor?
Looking for clues.
Thanks for your time.
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