Public bug reported:
Binary package hint: xserver-xorg-video-nouveau
Edid on this laptop cannot be read, and consequently nouveau driver will
have a black screen.
get-edid: get-edid version 2.0.0
Performing real mode VBE call
Interrupt 0x10 ax=0x4f00 bx=0x0 cx=0x0
Function supported
Call successful
VBE version 300
VBE string at 0x11100 "NVIDIA"
VBE/DDC service about to be called
Report DDC capabilities
Performing real mode VBE call
Interrupt 0x10 ax=0x4f15 bx=0x0 cx=0x0
Function supported
Call successful
Monitor and video card combination does not support DDC1 transfers
Monitor and video card combination does not support DDC2 transfers
0 seconds per 128 byte EDID block transfer
Screen is not blanked during DDC transfer
Reading next EDID block
VBE/DDC service about to be called
Read EDID
Performing real mode VBE call
Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0
Function supported
Call failed
The EDID data should not be trusted as the VBE call failed
Error: output block unchanged
Notice that NVidia proprietary driver also fails the same way, but it has a
workaround with the custom edid option.
Option "CustomEDID" "DFP-0:/etc/X11/SNY05FA.bin"
Nouveau driver does not seem to have such option.
** Affects: xserver-xorg-video-nouveau (Ubuntu)
Importance: Undecided
Status: New
--
edid cannot be read on Sony VPCCW2S1E and nouveau fails
https://bugs.launchpad.net/bugs/629516
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