Comment 6 for bug 734756
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| Bryce Harrington (bryce) wrote Re: Blank screen when booting with external monitor | #6 |
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bbfa235
(Get the code!)
feffemannen,
Please run the tool intel_reg_dumper once when the screen is working correctly, and once with it showing the blank screen / out-of-range error, and attach both files. Comparing the register settings for them may highlight where the problem is.
Perhaps would also be helpful to have an Xorg.0.log from the failed boot and one from the working boot, to see how X is differing in its capabilities detection.
However, ultimately I think this may be a KMS bug.