[Kwintv] The importance of good video hardware and drivers

[Stefan Hellwig]

Hi!

On Tuesday 05 November 2002 17:50, George Staikos wrote:
>    AGP is definitely being used since it's an AGP card. :-)  As for the
> AGP mode, I don't know what it's set at right now, but it certainly is
> using agpgart.

Well, that's not the case here. I've read somewhere that there are=20
conflicts between agpgart and NVidia's own implementation. That can be=20
activated by an option in XF86Config. Mine looks like this:

Section "Device"
  BoardName     "GeForce 2 MX"
  BusID  	       "1:0:0"
  Driver  	       "nvidia"
  Identifier	       "Device[0]"
  Option            "NvAgp" "1"
  Screen        	0
  VendorName    "Nvidia"
EndSection

> [...] Apparently other people are seeing the slowdown too,
> and the common thread is that we were using kmail.  Don Sanders found a
> severe slow down in qlistview in recent qt-copy.

Yes, I've read something about that. Let's see, I have to wait for RC2 to=20
finish compiling...

>     I would be interested if you could try all 5 V4L output methods,
> plus the Xv plugin, and see what your results are for each.

OK, I tested this all now (with overlay enabled all the time). The first=20
two (XVideo) worked but I think that the XVideo plugin still produces the=20
better picture quality, with V4L I still have a "ripped" TV picture when=20
there is some movement on the screen. And it seems to be slower than=20
XVideo.

The two X11 settings did not work, I always get two very green and small TV=
=20
pictures next to eachother. QtVision then crashed and I had to manually=20
edit my qtvisionrc to get it to start again...

> Maybe QtVision is driving more than usual PCI traffic and causing similar
> problems for you.

Hm... I am not sure. Shouldn't I have the same problems with the XVideo=20
plugin as well?

Regards, Stefan.
=2D-=20
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