[wplug] another newbie question - video stuff on X31 - rh9

[Bryon Gill]

It sounds like you've got a higher resolution for your screen than your 
projector can handle.  Many newer laptops use a very high resolution like 
1450x1050.  Simply changing the resolution will very likely 
solve your problem.

Try pressing the Control, Alt and Plus keys at the same time, see if 
another (virtual) screen resolution is picked.  If there are other valid 
screen resolutions that were configured for X, it will cycle through them.  
If not you may have to muck with the configuration utilities or even the 
XF86Config file.

On redhat, you can use redhat-config-xfree86 to change your default 
resolution if you want to use a resolution your projector can handle, 
assuming that is the problem.

Finally, if you make any changes to the XF86Config file, be CERTAIN you 
first make a backup of the file somewhere else, even if you think the 
changes you're making are minor and will be easy to remember.  This 
command will make a copy in your home directory:

cp /etc/X11/XF86Config ~/

Good luck,
Bryguy

On Wed, 14 Jan 2004, Jennifer Landefeld wrote:

> Hi All,
> 
> We're having video issues. One of the suggestions on the 
> linux-on-laptops site for the IBM X31 is to add/change the following 
> lines in the XF86Config file:
> 
> Option "CRTOnly"
> Option "CloneMode" "true"
> Option "PanelOff" "true"
> 
> First, I'm having no luck locating the config file they reference. 
> Second, at a glance, does it look like the options above will solve the 
> issue outlined below?
> 
> The issues is:
> 
> When I first boot up the new laptop with the video cable plugged in
> the back, the entire LCD display shows up on the projector and I can
> view the entire boot dialog.  However, when booting completes and the
> Gnome/KDE window system starts up, the projector output goes blank for
> a second, and then comes back up in a different resolution mode and I
> can only see part of the screen.
> 
> Many thanks!
> Jenn
> 
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