<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
<title></title>
</head>
<body bgcolor="#ffffff" text="#000000">
Johnny schreef:
<blockquote
cite="mid:a6ecfbaa0903131513t7d4347v6ef07ec5bc44f10d@mail.gmail.com"
type="cite">
<blockquote type="cite">
<blockquote type="cite">
<pre wrap="">I added the following lines to my /etc/rc.d/rc.local file, and it sets the
defined latency ($LAT) to any SATA and IDE pci devices (as matched by the
egrep pattern.
I use HEX value "b0" as stated in a link that was posted to the mvpmc
mailing list.
LAT=b0
for DEV in $(lspci|egrep "(SATA|IDE)"|awk '{ print $1 }')
do
setpci -v -s $DEV latency_timer=$LAT
done
</pre>
</blockquote>
</blockquote>
<pre wrap=""><!---->
I am really stumped and frustrated now. I added this to /etc/rc.local
(I didn't have /etc/rc.d/rc.local), I hope it runs from there. It had
no affect. I also tried running it manually from the command line and
it made no difference.
I figured the card must be bad. So before I bought a new one I put the
card in an old computer I used to use as a frontend. I set it up as a
slave backend, and I set it up to record to the master backend drives
via nfs. I made several recordings over a couple of days, and
everything was flawless. So now I know the card is fine, and I am back
to square one. I put it back into my new system (I even tried a
different pci slot) and the very first recording shows up the same
macro block artifacts. It will record flawlessly for 10 or 15 minutes
at a time, and then the blocky artifacts show up for a couple of
frames. Usually they only appear where their is motion in that frame.
So it must be something going on with the actual encoding on the card.
I would be suspect of some general incompatibility with the
motherboard, but it worked fine in this system for over 2 weeks.
I must have inadvertently changed something with the driver or
firmware, or some other configuration issue with the card, but I don't
know what it could be if this is even possible. The only other thing I
can think of now is some sort of hardware issue with the pci-bus, or
maybe a power issue, but I don't know how to look into these things. I
was quite happy thinking I would just get a new card, but now it seems
a new card would probably have the same problem. I appreciate how
helpful everybody has been. Does anybody have anymore ideas?
</pre>
</blockquote>
One other thing you can try: boot from a linux live-cd, load the
drivers/firmware and record with cat /dev/video0 > file.mpg and
check it. If no artifacts show up then try reinstall your system,
otherwise it's maybe a hardware problem like damaged memory or
something like that. I don't think so, but you never know!<br>
You can also check your antenna cable too. Here in the Netherlands,
some people have to replace their cable because DVB-T senders gives
problems.<br>
</body>
</html>