Messages in this thread | | | From | "Henrik Rydberg" <> | Date | Thu, 22 Nov 2012 19:23:25 +0100 | Subject | Re: Linux 3.7-rc6 |
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Hi Daniel,
> >> My apologies for the long delay in answering, I've somehow mixed up > >> different bugreports and thought I've sent you a patch to test > >> already. Anyway, please test > >> > >> https://patchwork.kernel.org/patch/1728111/ > > > > Tested-by: Henrik Rydberg <rydberg@euromail.se> > > Can you please boot with drm.debug=0xe added to your kernel cmdline > with that patch applied and attach the full dmesg?
Are you looking for something in particular? The patch obviously works because edp_bpp is never set. The reason seems to be
[ 1.634759] [drm:intel_parse_bios], VBT signature missing
In the source, a few lines above that message, we have something that looks suspciciously like an off-by-one error:
/* Scour memory looking for the VBT signature */ for (i = 0; i + 4 < size; i++) {
If that matters or not, I do not know. Any more tests would have to wait until tomorrow.
Thanks, Henrik
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