cmetz, this bug was reported a while ago and there hasn't been any
activity in it recently. We were wondering if this is still an issue? If
so, could you please test for this with the latest development release
of Ubuntu? ISO images are available from http://cdimage.ubuntu.com
/daily-live/current/ .

If it remains an issue, could you please run the following command in
the development release from a Terminal
(Applications->Accessories->Terminal), as it will automatically gather
and attach updated debug information to this report:

apport-collect -p xserver-xorg-video-ati REPLACE-WITH-BUG-NUMBER

Please note, given that the information from the prior release is
already available, doing this on a release prior to the development one
would not be helpful.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

** Changed in: xserver-xorg-video-ati (Ubuntu)
   Importance: Undecided => Low

** Changed in: xserver-xorg-video-ati (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/667546

Title:
  xrandr fails to find (any) output on r800

Status in “xserver-xorg-video-ati” package in Ubuntu:
  Incomplete

Bug description:
  Binary package hint: x11-xserver-utils

  I reinstalled a system previously running 10.04 with 10.10, and went
  about configuring for panning in the usual way as of xrandr:

  /etc/X11/xorg.conf added:

  Section "Screen"
          Identifier "Screen0"
          Device     "Card0"
          Monitor    "Monitor0"
          SubSection "Display"
                  Viewport   0 0
                  Virtual   3200 2400
                  Depth     24
          EndSubSection
  EndSection

  Then, I run:

  # xrandr --output DVI-0 --panning 3200x2400

  and I get:

  xrandr: cannot find output 0x47

  Forgetting about panning for a moment:

  # xrandr --output DVI-0
  xrandr: cannot find output 0x47

  I've enclosed the output of xrandr --verbose, but what I think is the
  relevant line is:

  DVI-0 connected 1600x1200+0+0 (0x49) normal (normal left inverted right x 
axis y axis) 367mm x 275mm
          Identifier: 0x46

  So basically, for some reason, the DVI-0 connection's identifier is
  0x46, but xrandr wants to use 0x47.

  For everything, it appears:

  # xrandr --output VGA-0
  xrandr: cannot find output 0x47

  My video card is a Radeon 5750, so it's a R800.

  apt-cache policy as requested in the bug reporting guidelines didn't
  seem to work. I'm up-to-date as of today (10/27/10).

  This worked fine with exactly these configuration steps in 10.04, and
  if memory serves in 9.10.

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