[Xorg-driver-geode] Geode PLL issue

[Otavio Salvador]

Hello,

I'm fighting with a LCD monitor that is not working with Geode GPU. I've
been trying to figure out how to make it work without luck and I want to
talk to you to discover how we can fix it.

This is a Samsung monitor, bellow goes the EDID information:

(II) GEODE(0): EDID vendor "SAM", prod id 1137
(II) GEODE(0): Using hsync ranges from config file
(II) GEODE(0): Using vrefresh ranges from config file
(II) GEODE(0): Printing DDC gathered Modelines:
(II) GEODE(0): Modeline "1360x768"x0.0   85.50  1360 1424 1536 1792  768 771
777 795 +hsync +vsync (47.7 kHz)
(II) GEODE(0): Modeline "800x600"x0.0   40.00  800 840 968 1056  600 601 605
628 +hsync +vsync (37.9 kHz)
(II) GEODE(0): Modeline "800x600"x0.0   36.00  800 824 896 1024  600 601 603
625 +hsync +vsync (35.2 kHz)
(II) GEODE(0): Modeline "640x480"x0.0   31.50  640 656 720 840  480 481 484
500 -hsync -vsync (37.5 kHz)
(II) GEODE(0): Modeline "640x480"x0.0   31.50  640 664 704 832  480 489 491
520 -hsync -vsync (37.9 kHz)
(II) GEODE(0): Modeline "640x480"x0.0   30.24  640 704 768 864  480 483 486
525 -hsync -vsync (35.0 kHz)
(II) GEODE(0): Modeline "640x480"x0.0   25.20  640 656 752 800  480 490 492
525 -hsync -vsync (31.5 kHz)
(II) GEODE(0): Modeline "720x400"x0.0   28.32  720 738 846 900  400 412 414
449 -hsync +vsync (31.5 kHz)
(II) GEODE(0): Modeline "1024x768"x0.0   78.80  1024 1040 1136 1312  768 769
772 800 +hsync +vsync (60.1 kHz)
(II) GEODE(0): Modeline "1024x768"x0.0   75.00  1024 1048 1184 1328  768 771
777 806 -hsync -vsync (56.5 kHz)
(II) GEODE(0): Modeline "1024x768"x0.0   65.00  1024 1048 1184 1344  768 771
777 806 -hsync -vsync (48.4 kHz)
(II) GEODE(0): Modeline "832x624"x0.0   57.28  832 864 928 1152  624 625 628
667 -hsync -vsync (49.7 kHz)
(II) GEODE(0): Modeline "800x600"x0.0   49.50  800 816 896 1056  600 601 604
625 +hsync +vsync (46.9 kHz)
(II) GEODE(0): Modeline "800x600"x0.0   50.00  800 856 976 1040  600 637 643
666 +hsync +vsync (48.1 kHz)
(II) GEODE(0): EDID vendor "SAM", prod id 1137

If I try to use the 1360x768 resoution it fais. Looking at PLL table it
takes 0x1104 (81.6 instead of 85.5) and using this it looks zoom-ed and
blur-ed. I got it somewhat working setting it for 0x5303 (97.52) but the
fonts looks ugly (blur-ed).

Do you have any idea how we could fix it?

-- 
Otavio Salvador                  O.S. Systems
E-mail: otavio at ossystems.com.br  http://www.ossystems.com.br
Mobile: +55 53 9981-7854         http://projetos.ossystems.com.br
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.x.org/archives/xorg-driver-geode/attachments/20100222/4847ca3f/attachment.html>