#13580: Black Screen on Thinkpad T400 with Intel graphics and Coreboot
----------------------------------------------+----------------------------
Reporter: johkra | Owner: kallisti5
Type: bug | Status: new
Priority: normal | Milestone: R1/beta2
Component: Drivers/Graphics/intel_extreme | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
----------------------------------------------+----------------------------
Comment (by pulkomandy):
I'm not surprised VESA is in trouble with Coreboot. I think the
framebuffer driver for UEFI may be a better choice in this case.
As for Intel, I had a similar thing happening on one of my previous
machines (which I didn't keep long enough to fix the problem,
unfortunately): it woudl boot to a working screen, but with backlight off
(I could see it under bright light). And when I added a serial port in the
expresscard slot, suddenly it started working. I think the extra delays
spent sending data to the serial port change the timings just enough that
the device initializes properly.
--
Ticket URL: <https://dev.haiku-os.org/ticket/13580#comment:13>
Haiku <https://dev.haiku-os.org>
The Haiku operating system.
