On Tue, 26 Aug 2014 13:09:54 -0400 Charles Devereaux <intelgfx@xxxxxxxxxxx> wrote: > Hello > > I'm trying to use i915.fastboot on a Thinkpad X60t. The bios has been > replaced by coreboot, which supports native video init. > > The goal is to boot to a console on a debian in less than 2 seconds > (kernel > + systemd), systemd is just fine in 0.6s but the kernel takes a long > time, with apparently 1 full second spend on the video mode > initialization, just as if fastboot was ignored. > > Coreboot is starting a grub2 payload, which is in the appropriate vesa > mode, and has option set gfxpayload=keep to pass it to the kernel. > > The 3.14.16 kernel start in the appropriate vesa mode, but there is > some flickering at one time, which indicates the drivers tries to > reinitialize the video card, before returning to this same mode. Your config looks ok, but it sounds like the i915 driver may be doing a full mode set. Doing a drm.debug=6 with fastboot enabled should give us clues about why in the dmesg. Jesse _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
