thom, 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-nouveau 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-nouveau (Ubuntu)
   Importance: Undecided => Low

** Changed in: xserver-xorg-video-nouveau (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/996168

Title:
  [precise](workaround incl) nouveau doesn't render items on lower third
  of desktop

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

Bug description:
  DISTRIB_ID=Ubuntu
  DISTRIB_RELEASE=12.04
  DISTRIB_CODENAME=precise
  DISTRIB_DESCRIPTION="Ubuntu 12.04 LTS"

  xserver-xorg-video-nouveau:
    Geïnstalleerd: 1:0.0.16+git20111201+b5534a1-1build2
    Kandidaat:     1:0.0.16+git20111201+b5534a1-1build2
    Versietabel:
   *** 1:0.0.16+git20111201+b5534a1-1build2 0
          500 http://nl.archive.ubuntu.com/ubuntu/ precise/main i386 Packages
          100 /var/lib/dpkg/status

  VGA compatible controller: NVIDIA Corporation NV34GLM [GeForce FX Go
  5300] (rev a1)

  On desktop, items that are moved down to below 1/3 of the screen are 
magically disappearing behind an "invisible horizon". 
  I am a noob when it comes down to videodrivers but is seems like although the 
desktop and backdrop are rendered nicely full screen the items on it seem to be 
rendered to a smaller field and get clipped when passing the "border". 
  Resizing the desktop to another size and back again seem to solve this issue.

  I'll paste my temporary workaround here for people with the same
  problem and the same hardware while awaiting a fix.

  workaround suitable for: NV34 (64MB) with laptopscreen 1024x768@60
  workaround for nouveau bug that cuts off everything on screen 
  beneath a certain invisible horizon
  resizing (and resizing back again) seems to be the only "fix" without 
disabling render acceleration
  workaraound tested (and works) 

  put the code below in a file, make it executable and put it in
  "startup applications" in your desktop:

  #!/bin/bash
  xrandr --output LVDS-1 --mode 800x600 --panning 800x600
  xrandr --output LVDS-1 --mode 1024x768 --panning 1024x768

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