[Dan Nicholson]

On Tue, Jan 6, 2009 at 1:47 PM, Fabio <fast at ferrara.linux.it> wrote:
>
> Hi all,
>
> I am having a strange problem and I can't find any help either googling or
> on the x.org site.
>
> I have just bought a new pc: the components are
>
> CPU: intel core2duo with 4 Gb of RAM
> MB: asus p5ql-em
> VGA: intel g43 (integrated on the MB)
> Monitor: asus vw198s
>
> I installed ubuntu 8.10 (amd64).
>
> The first problem is that the correct resolution of the monitor
> (1680x1050) is not recognized out of the box: after installation, it ran
> at a lower resolution (1360x768) and I was not able to change it.
> This surprised me.
> I couldn't find on the net a valid modeline for my monitor, so
> I followed the instructions on
> http://www.x.org/wiki/FAQVideoModes#head-82230a582646cbf28ac41dec2139732ee868e0d2
> to obtain a valid modeline using powerstrip.
> I got the following
>
> Modeline "1680x1050" 147.600 1680 1784 1968 2256 1050 1051 1054 1087 -hsync +vsync
>
> Is this ok? It looks like, since I put it into /etc/X11/xorg.conf
> and, this way, the resolution is correct.

I'm not sure if the bug is because of the intel driver or because of
the monitor. It would probably help to attach Xorg.0.log from the
failed attempt before you added the Modeline. It might also be
interesting to look at the output from "xrandr -q" which shows what
modes X thinks are available.

> But now it comes another problem: sometime (not everytime) when I logout
> to change user instead of the usual gdm greeting I get that the monitor
> has no signal and goes automatically in poweroff: the only thing that I
> can do is an hard reboot of the pc.
> I can't understand the origin of this problem.

There have been bugs with VT switching on intel recently. These are
being fixed, so it may be best here to file a bug with Ubuntu and wait
for the fixes to flow down.

--
Dan