Re: Fw: Re: drm bugs hopefully fixed but there might still be one..

[Andrew Clayton <andrew@digital-domain.net>]

On Thu, 2005-03-24 at 12:32 -0800, Andrew Morton wrote:
> ?
> 
> Begin forwarded message:
> 

[snip]

> > You mean these changes?
> > 
> > --- a/drivers/char/agp/via-agp.c        2005-03-24 10:33:45 -08:00
> > +++ b/drivers/char/agp/via-agp.c        2005-03-24 10:33:45 -08:00
> > @@ -83,8 +83,10 @@
> >  
> >         pci_read_config_dword(agp_bridge->dev, VIA_GARTCTRL, &temp);
> >         temp |= (1<<7);
> > +       temp &= ~0x7f;
> >         pci_write_config_dword(agp_bridge->dev, VIA_GARTCTRL, temp);
> >         temp &= ~(1<<7);
> > +       temp &= ~0x7f;
> >         pci_write_config_dword(agp_bridge->dev, VIA_GARTCTRL, temp);
> >  }
> 
> Exactlty. I had to revert this one since 2.6.11-bk3, or starting X kills
> the machine. By "kill", I mean the real thing, black screen, dead
> network, reset is the only choice. This is a (surprise!) VIA-based
> motherboard (Asus A7V133-C) with Radeon 9200-based graphics adapter.
> Dave Airlie was asking for a tester with such a configuration. I can
> test whatever you want. Just tell me what we are looking for :)
> 
> With the patch above reverted, 2.6.12-rc1-mm2 seems to work just fine
> for me. glxgears is OK and I just had a game of UT (first of the name).
> However, I am not a regular gamer so I'm not sure what to look for.
> 
> Thanks,


Bingo!

Backing out that change to a 2.6.12-rc1 solves the exact same problem
I've been having since 2.6.11-bk3. VIA chipset + Radeon 9200SE.

http://www.ussg.iu.edu/hypermail/linux/kernel/0503.1/1096.html


Cheers,

Andrew