Derrik Pates wrote:
> I finally determined why it is that the XFree Rage128 driver always gets
> the wrong framebuffer row width. In XFree 4.1.0's source, in
> xc/programs/Xserver/hw/xfree86/drivers/ati/r128_driver.c, lines 1105 to
> 1118 call XF86ValidateModes with a minPitch of 8 * 64 (512) and a max
> pitch of 8 * 1024 (8192). The default pitch increment value is 64 *
> pScrn->bitsPerPixel, such that the row width is ALWAYS a multiple of 64.
I've confirmed that this fixes the problems with 800x600 mode on my
iBook2 and attached it as a patch. Can somebody please apply this (or
come up with an argument as to why it's wrong)?
--
Adrian Cox http://www.humboldt.co.uk/
--- xc410/programs/Xserver/hw/xfree86/drivers/ati/r128_driver.c Tue May 29 23:51:08
2001
+++ /tmp/r128_driver.c Tue Dec 4 10:18:18 2001
@@ -1109,7 +1109,7 @@
NULL, /* linePitches */
8 * 64, /* minPitch */
8 * 1024, /* maxPitch */
- 64 * pScrn->bitsPerPixel, /* pitchInc */
+ 16 * pScrn->bitsPerPixel, /* pitchInc */
128, /* minHeight */
2048, /* maxHeight */
pScrn->display->virtualX,
