AW: Re: AW: Some observations regarding FC* on UP2000+

[Heid, Oliver]

srm already gets confused by the sheer presence of the card (e.g it detects 256 pci video devices with a radeon 7500). So no way to get into the linux kernel, for postponed initialization of the card (in the style of linuxbios).
The voodoo3 under x seem to work better the lower the cpu clock freq is. Swapping the 666mhz cpus against 866s made X even more flaky (it was unusable at 666 already: pixel trash, flickering colums, incompletely drawn/erased graphics, crashes etc). i tried three voodoo3s, with two boards, so its definitely not just a broken card issue. I have the feeling something is messed up in the x driver with timing dependent code (could it be a memory barrier issue when writing to card registers?!). IIRC windows nt/axp worked with the voodoo3.
    Oliver

----- Originalnachricht -----
Von: axp-list-bounces at redhat.com <axp-list-bounces at redhat.com>
An: Linux on Alpha processors <axp-list at redhat.com>
Gesendet: Thu Apr 24 18:46:10 2008
Betreff: Re: AW: Some observations regarding FC* on UP2000+

Heid, Oliver wrote:
> 
> My experience is that voodoo3s wont work on UP2k+ at all. AFAIR the x
> server is not the problem, but SRM. The voodoo3 is very limited in
> 24bit support anyway.

Yes, they (Voodoo and Banshee) seem much happier at 16bit, IMHO. Since
the tdfx driver rewrite to eliminate dependence on the GLIDE library,
3D hasn't worked on Alpha, IIRC. It might not be too hard to get
going - the driver seems to think it SHOULD be working, according to
most of the DRM-related messages coming out... :-\

> No Radeon [78]xxx either. The only card I found
> which works with decent resolution (1600x1200x24) is a matrox
> G400PCI. No 3D HW support, but xvideo (with AC-2.0, not with FC-8
> AFAIK). Yes, my XP1000 was much more forgiving. A Radeon 7000 worked
> nicely, 3D hw support and all (until it blew).

Yes, SRM console BIOS emulation on the API machines is definitely
a problem, since most of them appeared to miss the final upgrade of
that emulation that allows it to handle the more recent Radeons and
such. At least that's the case on my UP1100, which won't handle ANY
of the AGP Radeons, whereas the ES45 and ES47 AGP support is fine.

--Jay++

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