Comment 48 for bug 745112

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Bryce Harrington (bryce) wrote : Re: [arrandale] desktop is messed up (goes black) when laptop is docked with two external 1920x1200 monitors (x86_64)

To re-emphasize what I said in comment #28:

The next step for this bug is that we need to narrow down what patch in the upstream kernel provides the fix. The best way to achieve this is via doing a git bisection search. See https://wiki.ubuntu.com/Kernel/KernelBisection.

From the comments it sounds like three things are needed:

  * The mainline kernel .39
  * Delete your .config/monitors.xml
  * Don't arrange monitors one above the other (interesting; why? maybe unrelated bug?)

None of us X devs have arrandale HW, so progress on this bug is blocked until someone who *does* have it can do the git bisection work to narrow the patches. I asked Intel about this bug today but they didn't know offhand what patch(es) should be pulled either.