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[Fabio]

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.

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.

Thanks a lot for your help

Fabio