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[Bug 544986] Re: ACPI: Error: Unable to find the DOS

 

** Description changed:

  Curently using Ubuntu Karmic amd64, but preparing to upgrade to Lucid
  shortly.
  
  When connecting an external monitor to the analogue VGA port on the
  laptop (Sony Vaio VGN-FE41Z) or the replicated port on the docking
  station, the Nvidia driver adds a warning to the Xorg log:
  
  (WW) NVIDIA(0): ACPI: Error: Unable to find the DOS (Enable/Disable output
  (WW) NVIDIA(0):     switching) file path under /proc/acpi/video. The NVIDIA X
  (WW) NVIDIA(0):     driver will not be able to respond to ACPI display change
  (WW) NVIDIA(0):     hotkey events.
  
  I noticed bug #339558 reported the same for the 180 driver but the
  original reporter never followed up.
  
  lspci -nn | grep VGA
  01:00.0 VGA compatible controller [0300]: nVidia Corporation G73 [GeForce Go 7600] [10de:0398] (rev a1)
+ 
+ apt-cache policy nvidia-glx-185
+ nvidia-glx-185:
+   Installed: 185.18.36-0ubuntu9
+   Candidate: 185.18.36-0ubuntu9
+   Version table:
+  *** 185.18.36-0ubuntu9 0
+         500 http://gb.archive.ubuntu.com karmic/restricted Packages
+         100 /var/lib/dpkg/status

-- 
ACPI: Error: Unable to find the DOS
https://bugs.launchpad.net/bugs/544986
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