ubuntu-x-swat team mailing list archive

[Chris Halse Rogers <raof@xxxxxxxxxx>]

The way to get useful information out of the intel kernel driver is to
add “drm.debug=0x04” to the kernel boot commandline, which will cause
the kernel module to print out a bunch of modesetting debugging
information.  Since this problem goes back to boot with the plymouth
splash screen, it's clearly a problem in the kernel module's
modesetting.

It's very strange that it appears non-deterministic!

-- 
[GM45] [upgrade] [regression] [lucid]: external monitor only usable via DVI, not via DP
https://bugs.launchpad.net/bugs/557436
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