Re: screen-blanking and horizontal red streaks with a DVI KVM...

["Steven M. Bellovin" <smb%cs.columbia.edu@localhost>]

On Wed, 3 Sep 2008 00:22:15 -0700
Tom Spindler <dogcow%babymeat.com@localhost> wrote:

> > pkg_info says modular-xorg-drivers-1.3.  The log file says 
> > 
> >     Chipset ATI Radeon X300 (RV370) 5B60 (PCIE) found
> 
> In that case, you may want to look at
> http://bugs.freedesktop.org/show_bug.cgi?id=2859 ; it has a bunch
> of discussion on the issue. If your LCD has a mode where it shows you
> the current resolution with frequency, you may want to try pulling
> that up while trying the flickering-inducing behavior. When I had a
> radeon with the same issue, it showed that the frequency would drop
> by several Hz when that behavior happened.
> 
I'll try the patch this weekend, though my symptoms are not quite the
same and only occur when the KVM switch is in use.  As for the
frequency -- it always shows 60 Hz.


                --Steve Bellovin, http://www.cs.columbia.edu/~smb