Re: [GATOS]Zoomed Video on ATI 3D Rage LT Pro

On Thu, 28 Feb 2002, Fredrik Lingvall wrote:

>
>
> Vladimir Dergachev wrote:
>
> >
> >On Thu, 28 Feb 2002, Fredrik Lingvall wrote:
> >
> >>I'm trying to get ZV to work on an ATI 3D Rage LT Pro chip.
> >>Which register do I use to switch on ZV?
> >>
> >>I now that
> >>
> >>outf(CAPTURE_CONFIG, ENABLE_ATI_CAPTURE_DOUBLEBUF | 0x100);
> >>
> >>should do it on  ATI Rage Mobility M1 chip - see the ZV- patch for
> >>atixv.c (in the CVS ati.2
> >>sources) at http://www.linuxtv.org. I tried that on the ATI 3D Rage LT
> >>Pro chip
> >>which resulted in a X-server crash. I guess that I have to use another
> >>
> >
> >A crash or lockup ? It should not segfault because of this statement, if
> >it does the error is someplace else.
> >
> This is the message I get at the X11 log:
>
> >
> >
> >Fatal server error:
> >Caught signal 11.  Server aborting
> >

Signal 11 is a segmentation fault. So X is trying to access memory that
does not exist - use diff to check your modifications versus unmodified
ati.2 and check all the pointer usage in them.

                      Vladimir Dergachev

> >
> >When reporting a problem related to a server crash, please send
> >the full server output, not just the last messages.
> >This can be found in the log file "/var/log/XFree86.0.log".
> >Please report problems to xf...@xf....
> >
> Do you have any info of the CAPTURE_CONFIG register? Is there any
> other register that controls ZV? Ideally, I want to have a function
> that checks if a ZV capable card is inserted before switching on
> ZV.
>
>
> Fredrik
>
>
>