[Bug 36516] New: Problem with both VGA and HDMI active.

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Apr 22 18:22:21 PDT 2011


           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: xorg-driver-ati at lists.x.org
        ReportedBy: jfarmer99 at yahoo.com
         QAContact: xorg-team at lists.x.org

Originally I had this computer connected, via VGA and DVI, to two monitors. It
worked fine with those two monitors in the following configurations:
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.

Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

More information about the xorg-driver-ati mailing list