On 7/25/05, Bellido Nicolas <[EMAIL PROTECTED]> wrote:
> On Monday 25 July 2005 10:18, Jerome Glisse wrote:
> > radeon 9800 card still lockup with r300 driver. If you first run
> > an X server with fglrx, then leave and launch xorg with r300
> > driver you shouldn't have any lockup.
> 
> I see. Will try that this evening.
> 
> > I am still looking at what fglrx does and i have a couple of
> > guilty reg but so far after ten thousand reboot & dump i haven't
> > found the magic incantation.
> 
> You beat me by far: I just did tens of reboots :)
> 
> > Help on this is more than welcome :)
> 
> Sure. What could I do with my (very limited) knowledge of drm ??
> 

First make sure you know how to dump reg, i use a tools from Vladimir:
http://volodya-project.sourceforge.net/hw_script.php

Then i will send you latter(when i access the computer on which they are)
my script which use hw_script to dump reg. Basicly i dump all reg before
starting anythings (after boot), then i start xserver with fglrx and i dump all
reg, then i start x with r300 and i dump all reg. I have done this several time,
running different apps each time thus i have some change in dump (maybe i
am wrong doing so).

Then i look at what reg are always the same in some fglrx dump and
same in r300 dump (after fglrx) and different in r300 dump (r300 dump
without previously run fglrx). With that i get a list of reg that fglrx always
set in the same way (and that are preserved) and r300 doesn't.

But some of them are status reg and finding which register(s) are needed
to set a particular status is painfull and boring, you have to write in other
regs hoping to no lock the card (which often lock) and now i am dealing with
all this regs (as i already tested all non-status reg, and i think i
haven't missed
one, i hope :))

If anyone have a better procedure to track differences btw radeon/r300 2d
driver from xorg and fglrx (2d driver) ?

Jerome Glisse


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