Linux 2.6.14 & blade 100 framebuffer (was: Re: sparc buildd issues [Re: Release candidate architecture requalification results; amd64 is RC])
On Wed, Dec 28, 2005 at 03:48:51PM +0100, Luigi Gangitano wrote:
> >The Xorg setup that works flawlessly on my blade 100 with (custom)
> >2.6.9 at 1280
> >x 960 at 85 Hz suddenly only works at 60 Hz and shows red dots with
> >debian
> >2.6.14. I haven't investigated much in this issue, but perhaps you
> >know a
> >solution / workaround?
>
> I run it at 1024x768, and had many problems with the framebuffer that
> have been solved in the latest 2.6.14 sources. Maybe you should try
> the latest kernel image.
I just tried linux-image-2.6.14-2-sparc64 version 2.6.14-6 on my blade 100.
Console looks ok, except for some "snow" or noise when text is scrolling. Xorg
still insists on 1280x960 at 60 Hz; if I lower the resolution to something like
1024x768 or 800x600, it will put the refresh rate at 85 Hz. At all of those
resolutions though, there are red pixels on the screen, most notably when moving
a window.
If I boot the same kernel with 'video=atyfb:off vga=normal', Xorg suddenly does
run at 1280x960 at 85 Hz. Unfortunately, with that parameter, my second
framebuffer (another ati mach64 card) is not initialized, and Xorg only uses the
onboard card. The error in /var/log/Xorg.0.log is:
(==) ATI(1): Chipset: "ati".
(**) ATI(1): Depth 24, (--) framebuffer bpp 32
(**) ATI(1): Option "reference_clock" "29.5 Mhz"
(EE) ATI(1): Adapter has not been initialised.
In summary: 2.6.14-2 & Xorg seem to work fine for a blade 100, provided that you
disable the ati framebuffer (although I haven't tested it longer than a few
hours).
Now, if I could only find a way to make either openboot, the linux kernel or
Xorg (correctly) initialize both cards...
Admar
Reply to: