platinumfb problems

Hollis R Blanchard hollis+ at
Tue Mar 9 08:17:59 EST 1999

On Mon, 8 Mar 1999, Sean Harding wrote:

> On Mon, 8 Mar 1999, Hollis R Blanchard wrote:
> > Using the cmdline "root=/dev/sdb5 video=platinumfb:vmode:17,cmode:8" (from
> > /proc/cmdline), Linux starts in screwed up palette mode, which would seem to
> > indicate 16bit color (I'm running X great in 8bit, but trying to use 16bit
> > makes for an annoying palette).
> > 
> > It seems that with platinumfb, 16bit color is wrong in both console and X.
> > 'vmode 17 8' in console and 'startx -- -depth 8' make the colors sane again.
> Are you using XF68fbdev or Xpmac? I'm still using Xpmac, and after some
> modifications to platinumfb.c, I can run in 16bpp with no problems.
> 24/32bpp has the right palette in X, but has funny colors in text mode and
> an annoying line going across the screen...

Xpmac. I haven't heard of any benefit for XF68, only config file nightmares.
If there was an Xconfigurator (I'm still using R4), I'd at least consider

Are the changes you made to platinumfb.c general fixes, or specific hacks? I
heard someone else talking about a funny line, too (LinuxPPC at, I


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