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[Bug 745112] Re: [arrandale] desktop is messed up (goes black) when laptop is docked with two external 1920x1200 monitors (x86_64)

To: ubuntu-x-swat@xxxxxxxxxxxxxxxxxxx
From: Martin Pool <martinpool@xxxxxxxxx>
Date: Mon, 06 Jun 2011 06:50:40 -0000
Reply-to: Bug 745112 <745112@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

tjaalton and bryceh suggested bisecting using the packages built from
mainline rather than building from scratch.

Using <http://kernel.ubuntu.com/~kernel-ppa/mainline/>

v2.6.39-rc1-natty when the external monitor is plugged in will _only_
use the external monitor; the monitors control panel apparently cannot
even detect the internal monitor.  If I unplug the displayport cable the
internal screen is stuck black.

v2.6.39-rc4-natty seems to work correctly.

rc2 apparently failed to build.

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https://bugs.launchpad.net/bugs/745112

Title:
  [arrandale] desktop is messed up (goes black) when laptop is docked
  with two external 1920x1200 monitors (x86_64)