On Tue, 2009-09-22 at 15:12 -0500, Alex Villacís Lasso wrote: > After a lot of googling, I found a PDF file of a photocopy of a > datasheet for the OAK 64107 graphics chipset, which seems very similar > to the 64111 that I have. With this, the OAK.TXT file from the VGADOC > zipfile floating around the net, and examination of register settings on > the card itself, I have managed to write a basic driver that can switch > into 8-bit, 16-bit, 24-bit and 32-bit modes without help from the VESA > BIOS. The supported resolutions are up to 832x624 pixels. > > Now, I know that the chipset can do at least 1024x768 non-interlaced, > because I remember seeing this resolution back when the target machine > ran Windows 95 (it now runs updated Fedora 10). However, I still don't > know how to set the supposed higher pixel clock speeds required for > 1024x768 and beyond. The 64107 datasheet says the clock chip is an > OTI-088, so I am looking for documentation on this chip. Does any of you > have this datasheet? I have tried the Wayback site but to no avail.
I have an actual paper book [1] describing a bunch of Oak chips, including the 64107. But I don't see anything obviously describing the high-res modes on the 64105/64107. There _is_ a mode table that ends with: Mode Resolution Colors ------------------------------ ... 5fh 640 by 480 24 60h 800 by 600 16 61h 640 by 400 8 h 640 by 480 32 h 800 by 600 32 h 1024 by 768 32 and no, the missing numbers are not typos, that's how it actually ends. I'd guess they're 0x62 through 0x64? [1] Programmer's Guide to the EGA, VGA, and Super VGA Cards, Third Edition. Richard F. Ferraro, Addison-Wesley. - ajax
signature.asc
Description: This is a digitally signed message part
_______________________________________________ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg