#13580: Black Screen on Thinkpad T400 with Intel graphics and Coreboot
-------------------------------------------------+-------------------------
Reporter: johkra | Owner: pulkomandy
Type: bug | Status: in-progress
Priority: normal | Milestone: R1/beta2
Component: | Version:
Drivers/Graphics/intel_extreme/g45 | R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
-------------------------------------------------+-------------------------
Comment (by pulkomandy):
The syslog contains two boot attempts on apparently different machines?
In the first one, a VBT is found in the BIOS, and things seems to go fine.
In the second, no VBT is found (which doesn't matter, but tells me
something about the hardware/BIOS changed), and in the end there is this
error repeated several times:
{{{KERN: intel_extreme: engine locked up, head 0!}}}
I think our driver still relies on the VESA BIOS to set up some things on
the card, and only does the final part of the modesetting.
I think we should move this ticket out of the beta2 milestone for now, as
it seems to be specific to Coreboot (not blaming them, but the combination
of coreboot and haiku is uncommon so maybe a bit lower priority)
--
Ticket URL: <https://dev.haiku-os.org/ticket/13580#comment:22>
Haiku <https://dev.haiku-os.org>
The Haiku operating system.
