On Fri, Dec 07, 2001 at 05:27:06PM +0000, Simon Harvey wrote: > I've been having problems for a while with my Voodoo3 2000PCI and XFree86 > (what I thought was overheating: > http://www.xfree86.org/pipermail/xpert/2001-August/010690.html ) > > Having searched through tdfx_driver.c in CVS, and looked at the > voodoo3_spec pdf, I'm pretty sure the problem is due to the memory delay > settings. > > The defaults given for the DRAMINIT1 register in the 3dfx specs seem to > differ from those in the actual BIOS if the following info is correct: > http://www.v3info.de/english/html/memdocs.shtml > > Specifically Bit13 (sg_clk_nodelay) is clear, not set as in tdfx_driver, > and depending on the BIOS, various delays are imposed on reading from the > SGRAM (set by bits 19-16). The oflop_del_adj bits differ too. I've a > V3-2000PCI, BIOS 2.15.06, btw. > > It's entirely possible I haven't got a clue about any of this but couldn't > the BIOS value for DRAMINIT1 be left unchanged unless some XF86Config > setting says otherwise? The "we've never had a problem with them [V3/V5]" > comment in the source made me smile. The lack of any fan near my V3 > probably just exacerbates any marginal memory access settings; the hard > lockup only occurs in a program which uses nearly 100% of texture memory > and has very low CPU overhead (84fps in 1024x768) - and never a problem in > Win98. > > Please tell me if I'm wrong; I'm not sure who's currently working on this > driver, > Ooops. Noticed you've got a V3 and not a Banshee.
If you change that ifdef to PCI_CHIP_VOODOO3 does it help your problem ? Alan. _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
