If your monitor doesn't sync with xf86-video-intel

Eric Anholt eric at anholt.net
Fri Oct 19 11:18:15 PDT 2007

On Fri, 2007-10-19 at 15:32 +0200, Tino Keitel wrote:
> On Thu, Oct 18, 2007 at 12:27:04 -0700, Eric Anholt wrote:
> > We've been looking into an issue with our PLL programming, where
> > following the spec as we understand it results in us not being able to
> > choose a reasonable dotclock for a number of popular video modes
> > (115-140Mhz dotclocks for VGA/TMDS outputs).  I've pushed a check into
> > the driver to warn in the log if our chosen dotclock is wildly out of
> > range.
> I had a case where my TFT reports "invalid mode" and 57 Hz, whereas
> Xorg claims to use a 60 Hz mode. Is this the scenario that you are
> talking about?

That would be a potential effect of this issue.  To confirm, check your
log with the current driver.

Eric Anholt                             anholt at FreeBSD.org
eric at anholt.net                         eric.anholt at intel.com

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