Thanks, that works perfectly.

-sam

On Tue, Mar 9, 2010 at 4:14 PM, Konstantin Svist <fry....@gmail.com> wrote:

> On 03/09/2010 01:12 PM, Sam Tregar wrote:
> > Hey all.  I've got a Dell Latitude E1505 running Fedora F12.  I just
> > updated to 2.6.32.9-67.fc12.i686 today and as soon as I rebooted my
> > external LCD was unreadable.  It had wavy vertical lines all over it
> > and appeared to have less than the full vertical resolution.  The
> > laptop LCD looked fine.
> >
> > After checking the cable, power-cycling the monitor and reseting its
> > settings, and rebooting a few times didn't help, I booted back
> > into 2.6.31.12-174.2.22.fc12.i686 and all was well again.  Any ideas
> > what could cause this and what I might do to fix it?
> >
> > The display chip on this laptop is an ATI Radeon Mobility X1400 and
> > I'm using the radeon driver.  Let me know if I can provide anything
> > that might help - X logs, dmesg, whatever.
> >
> > Thanks!
> > -sam
> >
>
> I have the same laptop.
> What you need to do is add nomodeset to your kernel parameters in
> /boot/grub/grub.conf
>
>
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