Bug#538148: [intel,855GM] Output LVDS enabled but has no modes

[Brice Goglin <Brice.Goglin@ens-lyon.org>]

Frederic Peters wrote:
> Package: xserver-xorg-video-intel
> Version: 2:2.8.0-1
> Severity: important
>
> Hello,
>
> [I updated the autogenerated parts of this bug report manually, to match
>  the failing packages, hopefully I didn't miss any part in doing this]
>
> Today I tried to upgrade from 2:2.3.2-2+lenny6 to 2:2.8.0-1 and X
> started working afterwards, 
>   FATAL: Module i915 not found.
>   (EE) intel(0): Output LVDS enabled but has no modes
>   (EE) intel(0): No valid modes.
>   (EE) Screen(s) found, but none have a usable configuration.
>
>   Fatal server error: no screens found
>
> I didn't have that error with 2:2.6.3-1 (but I had #523415).
>   

Can you try without any xorg.conf config file in case your
horiz/vertrefresh ranges are involved in the problem?

Can you try some other intel driver versions that are available at
http://people.debian.org/~bgoglin/rebuilds/Xserver1.6/ ?

We should report your problem upstream, but it would be good to know
when the problem appeared.

In the meantime, you could use the vesa driver, or try to force a mode
using:

Section "Monitor"
Identifier "LVDS"
Modeline "1024x768_60.0" 65.00 1024 1048 1184 1344 768 771 777 806
-hsync -vsync
Option "PreferredMode" "1024x768_60.0"
EndSection

(I took the modeline from #523415)

Brice