[mythtv-users] New installation, choppy video (not DMA) help request

[Steve Daniels]

> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org [mailto:mythtv-users-
> bounces at mythtv.org] On Behalf Of Dan
> Sent: 15 May 2006 15:18
> To: mythtv-users at mythtv.org
> Subject: [mythtv-users] New installation, choppy video (not DMA) help
> request
> 
> Hello all,
> 
> I've been working on a MythDora machine for a few weeks now, in several
> hour increments.  I have a system that seems to be working, but HDTV
> playack performance is poor.  This includes watching "live" TV.  I get
> very high CPU usage from X and mythfrontend (50% each) in top.  The video
> and audio both have noticeable (but not extreme) chop.  I have checked the
> FAQ lists that I could find, and don't see any help so far.  This is the
> system info that I can guess might be relevant

This is the primary cause of the choppy video. Your system just isn't
powerful enough for HD processing on its own.

> 
> MSI K8N Neo2 platinum MB
> AMD Athlon64 3200+
> 1G RAM
> 40G IDE drive (DMA enabled and verified)
> ATI Radeon X850PE

ATI has *no* support for hardware acceleration for MPEG2&4 playback, which
is why your CPU is doing all the work.

> Fusion HDTV3-(gold, I think, 'dmesg | grep -i' dvb below:)
> --
> cx2388x dvb driver version 0.0.5 loaded
> cx88[0]/2: cx2388x based dvb card
> DVB: registering new adapter (cx88[0]).
> DVB: registering frontend 0 (LG Electronics LGDT3302 VSB/QAM Frontend)...
> --
> currently using VGA output (plans for TV-out eventually)
> installed via MythDora onto a fresh system.
> 
> I am sure that there are other relevant details to provide, but I do not
> yet know what they are.  I checked the archives for a "how to ask for
> help"
> posting, but didn't find it.  My apologies if there is standard info
> that I have not provided above.
> 
> Any suggestions on what to check or where to look next would be most
> appreciated.
> 
> Thanks-

I think it comes down to either getting a faster processor, or a nvidia
graphics card.

Tough luck I'm afraid.

Steve Daniels
 

-- 
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.392 / Virus Database: 268.5.6/339 - Release Date: 14/05/2006