T60 fails to init LVDS

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Hello,

After flashing my T60 (ATI X1400) to coreboot my laptop screen will
not come up, even after adjusting the brightness keys. I can output
video fine via DVI via a port replicator. I've heard that other ATI
users have had similar problems and I'm attaching my oprom, dmesg, and
xrandr output for anyone to have a look.

board-status
http://review.coreboot.org/gitweb?p=board-status.git;a=commit;h=c282f074c...
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Flashing with a vgabios.bin extracted from vendor bios fixes this. I
am now having trouble getting thinkpad_acpi working correctly.

On 04/30/2014 04:16 AM, uberushaximus(a)gmail.com wrote:
  Hello,
 
 After flashing my T60 (ATI X1400) to coreboot my laptop screen
 will not come up, even after adjusting the brightness keys. I can
 output video fine via DVI via a port replicator. I've heard that
 other ATI users have had similar problems and I'm attaching my
 oprom, dmesg, and xrandr output for anyone to have a look.
 
 board-status 

http://review.coreboot.org/gitweb?p=board-status.git;a=commit;h=c282f074c...
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[solved] Lenovo T60 fails to init LVDS

[Paul Menzel]

      Am Mittwoch, den 30.04.2014, 17:51 -0500 schrieb uberushaximus(a)gmail.com:
  Flashing with a vgabios.bin extracted from vendor bios
fixes this.
What do you mean exactly? Both VGA Option ROMs are from the vendor BIOS.
From our conversation in #coreboot [1], is the following correct?

1. It did *not* work with the VGA Option ROM extracted from the firmware
image file downloaded from the Lenovo Web site [2][3].

2. It did work with the VGA Option ROM extracted from the system running
the vendor BIOS [4].

Kyösti and Patrick suggested that the VGA Option ROM in the firmware
image does not contain the necessary IDs for the used graphics card and
the vendor BIOS adds these/patches at every boot.

  I am now having trouble getting thinkpad_acpi working
correctly.
Please start a separate thread for that.


Thanks,

Paul


[1] http://www.coreboot.org/IRC
[2]
http://www.coreboot.org/VGA_support#RECOMMENDED:_Extracting_from_your_ven...
[3] http://www.coreboot.org/VGA_support#Downloading
[4]
http://www.coreboot.org/VGA_support#Extracting_from_the_system_.28if_ever...

[Peter Stuge]

      Hi,

You're most welcome to work on fixing the issues that you identify.
Please push commits to gerrit for review once you believe that they
are reasonably finished.

uberushaximus(a)gmail.com wrote:
  I am now having trouble getting thinkpad_acpi working
correctly.
You'll have to look into why. Nobody will do it for you just because
you send an email to a list.


//Peter