[CentOS] x windows and i810 chipset -- you need interlace (1080i)

Bryan J. Smith thebs413 at earthlink.net
Sat Nov 19 12:45:05 UTC 2005

On Fri, 2005-11-18 at 18:09 -0500, Jerry Geis wrote:
> here is part of my x file.
> It will not do the 1920x1080 mode. It says it is not defined.

Oh, now you're talking about a completely _different_ issue.
Your scanline is _invalid_.

Unless you pass "interlace", you're attempting to do 1080p!
That requires well over 100KHz in horizontal scan!

Try this Modeline (1080i):  

    Modeline "1080i" 79.84 1920 2040 2200 2368 1080 1090 1106 1125 +vsync -hsync interlace 

It still might _not_ work.  Some chipsets (especially the i8xxG's) have
MIT X11 drivers with a lot of limitations to reprogramming the timing.
E.g., I have personally started avoiding any notebook with an i8xxG/9xxG
in Linux for this reason.

Bryan J. Smith   b.j.smith at ieee.org   http://thebs413.blogspot.com
For everything else *COUGH*commercials*COUGH* there's "ManningCard"

More information about the CentOS mailing list