On Thu, Nov 22, 2012 at 7:23 PM, Henrik Rydberg <rydberg@xxxxxxxxxxx> wrote: >> >> 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@xxxxxxxxxxx> >> >> 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. Yeah, the utter lack of a vbt fits very nicely, thanks for checking, I've merged the patch into drm-intel-fixes and will forward it for inclusion into 3.7 rsn. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
