[mythtv-users] Misc. PVR-350 TV-out issues
schepens at shaw.ca
Mon Mar 15 18:28:24 EST 2004
----- Original Message -----
From: Scott Anderson <scottanderson at comcast.net>
Date: Monday, March 15, 2004 7:29 am
Subject: Re: [mythtv-users] Misc. PVR-350 TV-out issues
> Gerald Schepens wrote:
> > 1) My regular video card is an nVidia geforce4 ti4200. I have
> > monitor attached to it, on which my console appears at boot.
> > once my ivtv-fb loads, the console goes back a few pages and
> > there. Once I'm in X, it seems that my console out is sort of
> > directed to my PVR350! Is it possible that the ivtv-fb driver
> > taking over /dev/fb0 when it shouldn't? (Because, doesn't the
> > use fb0 as a video card frame buffer for displaying the
> console?) And
> > is there a fix for this?
> Try adding "vga=normal video=vc:0-0" (without the quotes) to your
> boot line in lilo.conf or menu.lst.
Did that -- got my consoles back! I actually ended up finding this tidbit in a random search (and apparently that's documented in ivtv-fb.h which I must admit I didn't read).
> > 2) When I'm watching live TV and I press "m" on my remote to
> get the
> > TV listing display, the PVR350's screen gets dimmer but the
> > continues to update on the screen, as though the picture were
> > preparing to be overlaid with the osd. No real problem so far,
> > the listing appears on my monitor rather than on the TV.
> > this is workable, I'd rather it continued to function like it
> did when
> > I was using my nvidia tv-out, with the tv-display displaying the
> > I understand the difficulty involved because suddenly we're
> asking the
> > card to display something that isn't part of an mpg stream.
> > Nevertheless, if somebody knows whether this can be done, great,
> > it's not enough of an issue to make me switch back to using the
> > tv-out.
> Sounds like X isn't using the framebuffer.
Since I was able to get the tv-out on the PVR-350 to work without having an X screen assigned to it, I made the leap that I didn't need to have the PVR-350 in my XF86Config at all. Currently, it's not. I did have it assigned in my layout as screen1 RightOf Screen0, but that caused pathetically slow performance on the PVR-350 so I took it out totally. Maybe I need the device and screen defined but not part of the layout...?
> > 3) If I rewind or fast forward through a recording too
> > mythfrontend sometimes hangs. Some of the time, it appears to
> > the kernel along with it. When it's just mythfrontend that gets
> > up, I have to switch to a terminal and kill the mythfrontend
> > When I restart mythfrontend, the pvr-350 TV out usually won't
> > any longer. Sometimes I can't switch to a terminal to kill
> > mythfrontend -- the remote, the keyboard and the mouse all seem
> > have no effect on the system and I have to cycle power on the
> PC. In
> > this case, I wonder if ivtv-fb hasn't misbehaved. Has anyone
> else had
> > this experience?
> This behavior is one of the reasons I use an nVidia tv-out card
> of the PVR at this point. The ivtv drivers are still maturing. Are
> by chance using a motherboard with a Via chipset?
My mobo is an Asus P4PE. It has an Intel 82845PE MCH and an Intel 82801DA ICH4, but there is a Via IEEE1394 controller, which happens to be sharing the PVR350's interrupt.
Thanks for the tips!
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