Chad wrote:
Hello!
I'm looking for an easy-to-use website that will explain the
differences of the nvidia cards to me. MythTV says I need a Geforce 4
or better to do XvMC, but I've got an MX440 and it barely (nearly
unusably) does it. I am looking for a faster/better/newer card and
want to know the difference in the 5200, 6200, 6600, GT versions of
those, the 4000...
I use the SVideo out on an MX440 and had little luck with XvMC in 0.18.2
(the fixes release), but am having far more luck with the latest SVN -
it's totally watchable and lowers my CPU usage quite significantly (to
the point where HD channels used to be unwatchable, but now only
ocassionaly skip with a 'pre-buffering pause').
I'm looking for a card that actually works (well) in linux/mythtv with
it's Digital Coax output. I have yet to actually be able to get
anything to play through my digital out and have my receiver pick it
up as a Dolby Digital sound source (when it's a HD recording with DD
audio).
Believe it or not, I'm using the AC97 onboard audio on a KT600 chipset
mainboard through the SPDIF out.
All I did was enable IEC968 output in alsamixer, turn IEC968 playback
all the way *down* (it seems to work in reverse?), and pointed Myth to
use alsa:spdif as the output device.
For mplayer, I use a command line similar to:
mplayer -fs -zoom -quiet -vo xv -ao alsa:device=spdif -ac hwac3,
(NOTE: extra ',' at the end is required, tells mplayer to fallback to
other codes if it can't access hardware ac3, or the stream is not ac3 at
all)
The best I've gotten is a loud repeated 'beat' (which is my best
description, I would guess it's an analog version of the digital
pulse?) which I quickly mute or kill. I've tried/used a cmipci, an
emu10k1, and onboard via-82xx, all through very new versions of ALSA,
with no avail.
That's it, my AC97 chipset uses the via-82xx driver.
Regards,
Johan
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