Re: capture card not working with nvidia driver

Hallo

> My older machine with a cheap bttv capture card works well with nv 
> module driving GFORCE 2 MX card. Framebuffer and tiny penguin at boot up 
> shows, xawtv, glav, etc. works well for video capture and editing. 
> Recently I installed the proprietary nvidia driver (92.43.23). I had to 
> recompile the kernel (2.6.32.71) because the nvidia driver conflicted 
> with the kernel's drm and framebuffer modules. OK, now I have the full 
> capability of my 24" LCD display with the nvidia driver; AGP is fully 
> functional and glxgears runs fast. However, video capture is not 
> possible anymore: xawt screen is blue, but the setup screen lacks 
> sections starting with video source. I can play existing video files, 
> just capture capability is dead. So now I made my machine to dual boot 
> with nv driver or nvidia; I also switch xorg.conf at boot via rc.local 
> by sensing kernel version loaded.
> 
> I'm writing to this forum with a hope that somebody has some idea how to 
> make nvidia proprietary driver to work with video capture card. Maybe I 
> should go to some nvidia forum, but I trust the expertise of those who 
> follow mjpeg-users bulletin board.

I'm just guessing but could it be that the nvidia driver expects a 
different format or calls so it displays the video ? When you write that 
you had problems with the drm and framebuffer modules, I guess that they 
expect different API/Header/calls. Did you try a different xawtv version ?

Did you try the different options xawtv offers ? (-fb, -xv/-noxv, 
-dga/-nodga and others )

> One more info: the sysrcd-5.0.0 with 4.9.24 kernel works on my machine; 
> it loads the nouveau driver, screen resolution is identical with nvidia 
> driver. I tried to compile 2.6.33.1 kernel from source (the first kernel 
> that has the nouveau driver), but could not configure to include the 
> nouveau module. I thought that with the nouveau module, instead of 
> nvidia driver, capture would work again.
> 
> Thanks for your attention - Janos


auf hoffentlich bald,

Berni the Chaos of Woodquarter

Email: [email protected]
www: http://www.lysator.liu.se/~gz/bernhard