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[Bug 749817] Re: natty regression: screen goes black when external monitor is connected

 

*** This bug is a duplicate of bug 745112 ***
    https://bugs.launchpad.net/bugs/745112

Affects me on Toshiba m700 (w touchscreen) and Benq secondary monitor

results of sudo lshw -C display; cat /etc/lsb-release"


  *-display:0             
       description: VGA compatible controller
       product: Mobile GM965/GL960 Integrated Graphics Controller (primary)
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 03
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:44 memory:ffc00000-ffcfffff memory:e0000000-efffffff ioport:cff8(size=8)
  *-display:1 UNCLAIMED
       description: Display controller
       product: Mobile GM965/GL960 Integrated Graphics Controller (secondary)
       vendor: Intel Corporation
       physical id: 2.1
       bus info: pci@0000:00:02.1
       version: 03
       width: 64 bits
       clock: 33MHz
       capabilities: pm cap_list
       configuration: latency=0
       resources: memory:ca000000-ca0fffff
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=11.04
DISTRIB_CODENAME=natty
DISTRIB_DESCRIPTION="Ubuntu 11.04"

Results of xranr:
Screen 0: minimum 320 x 200, current 2960 x 1050, maximum 8192 x 8192
VGA1 connected 1680x1050+1280+0 (normal left inverted right x axis y axis) 474mm x 296mm
   1680x1050      60.0*+
   1280x1024      75.0     60.0  
   1440x900       75.0     59.9  
   1280x960       60.0  
   1280x800       59.8  
   1152x864       75.0  
   1152x720       60.0  
   1024x768       75.1     60.0  
   832x624        74.6  
   800x600        75.0     60.3  
   640x480        75.0     60.0  
   720x400        70.1  
LVDS1 connected 1280x800+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1280x800       60.0*+
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
DVI1 disconnected (normal left inverted right x axis y axis)

Can confirm that dual screen is fine in Ubuntu "no effects"

my issues are second screen alignment - is about 30 mm to left of centre of second monitor
also the mouse targets an area about 30mm to left of mouse icon

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https://bugs.launchpad.net/bugs/749817

Title:
  natty regression: screen goes black when external monitor is connected

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References