[mythtv-users] ATSC content heavy pixel-ating every 15 sec's
Yan-Fa Li
yanfali at best.com
Sat Jan 1 01:33:14 UTC 2005
Two problems appear obvious:
1. Your drive isn't quite set correctly, just mostly.
Try adding:
hdparm -c3 /dev/hdb
You can also see if your chipset will tolerate
hdparm -u1 /dev/hdb
Not all of them will so you'll have to experiment to see if it causes
problems.
2. move drive to master on /dev/hdc
You want to move the drive off the same controller as /dev/hda. Slave
drives have very poor performance on IDE. You want it to be either
master on /dev/hdc or on a different PCI IDE card away from your
DVD-ROM. I tend to share the DVD-ROM with the second drive because they
are rarely active at the same time.
john roberts wrote:
> I'm running a CVS build from mid-Dec and I've noticed that every 15 sec's on recorded content I get heavy pixel-ation (if that's a word).
>
> For a while I thought it was due to a weak station - but it does this for all recordings. And the fact it does this EVERY 15 sec's makes me think there is something odd going on.
>
> I was thinking it might be a DMA issue - but the drive seems to be set correctly:
>
> htpc / # /sbin/hdparm -v /dev/hdb
>
> /dev/hdb:
> multcount = 16 (on)
> IO_support = 0 (default 16-bit)
> unmaskirq = 0 (off)
> using_dma = 1 (on)
> keepsettings = 0 (off)
> readonly = 0 (off)
> readahead = 256 (on)
> geometry = 19929/255/63, sectors = 163928604672, start = 0
>
> My setup:
>
> - P4 3.2G
> - Dec CVS build
> - Gentoo
> - HD2000
> - HD3000
>
> Thanks! Could this be a Myth issue?
>
> -John
More information about the mythtv-users
mailing list