Latest intel driver breaks 1680x1050 mode on TMDS-1 output

Stefan Dirsch sndirsch at
Fri Jul 20 03:00:09 PDT 2007


Latest intel driver breaks 1680x1050 mode on TMDS-1 output only (works
fine when using VGA output). Monitor gets 1680x1053 instead and breaks
the picture by scaling in y direction. I bisected the driver to figure
out which commit changed the behaviour:

> git bisect good
1e2e301348b4168aeed38b3fdc6b0e43d5678a86 is first bad commit
commit 1e2e301348b4168aeed38b3fdc6b0e43d5678a86
Author: Keith Packard <keithp at>
Date:   Sat Jun 30 12:45:24 2007 -0700

    Fix load detection to use border region instead of blanking.

    Make sure there is some border area to use by changing how the pipe is
    configured, then pick a scanline in the middle of the border for load
    detection. This lets the load detect code use an active pipe instead of
    requiring an idle one.

I've added Bug #11663 for this issue, where I also attached

Best regard,

Public Key available
Stefan Dirsch (Res. & Dev.)   SUSE LINUX Products GmbH
Tel: 0911-740 53 0            Maxfeldstraße 5
FAX: 0911-740 53 479          D-90409 Nürnberg            Germany 
SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg)

More information about the xorg mailing list