Bug#624553: xserver-xorg-video-nouveau: Monitor is not detected by driver: no EDID information is retrived

[Sven Joachim <svenjoac@gmx.de>]

On 2011-04-29 17:00 +0200, David Westberg wrote:

> Package: xserver-xorg-video-nouveau
> Version: 1:0.0.15+git20100329+7858345-5
> Severity: normal
>
> EDID is not retrived using the nouveau driver. Thus driver does not use the
> monitor at default resolution, 1280x1024.

The nouveau driver gets EDID information from the kernel, so the
question is whether the kernel has it.  Do you have something in
/sys/class/drm/card0-VGA-1/edid or /sys/class/drm/card0-DVI-I-1/edid ?

> The monitor connected is a Samsung SyncMaster 770TFT.
>
>
> The output from get-edid command is:
> ------------------------------------------------
> 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
> ----------------------------------------------

Strange that this succeeds if nvidia is loaded and fails otherwise.

Regards,
        Sven