[mythtv-users] RE: 0.18.1 DVB-S Stuttering

Derek Conniffe derek at rivertower.ie
Mon Jun 27 10:13:44 UTC 2005


I downgraded back to 0.17 and the problem has gone away.  So it looks like
the problem is in MythTV 0.18.1 and not IVTV or LinuxTV.  I'll stay with
MythTV 0.17 for the moment as it seems to be working fine.

I'm running:
	SuSE Linux 9.1
	QT version 3.1.2
	Kernel 2.6.12.1 (and LinuxTV drivers as included with this kernel -
although MythTV 1.17 was also fine with Kernel 2.6.8)
	IVTV 0.2.0-rc3k
	A PVR350 & a Nexus-S both PCI

If anyone else has had this problem I'd be interested to hear from you

All the best,

Derek

 

-----Original Message-----
From: mythtv-users-bounces at mythtv.org
[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Derek Conniffe
Sent: 24 June 2005 15:42
To: 'Discussion about mythtv'
Subject: [mythtv-users] RE: 0.18.1 DVB-S Stuttering

Hi again,

I still haven't got this fixed yet.  I've upgraded to Kernel 2.6.12,
installed the latest stable IVTV (0.2.0-rc3k) and did a make clean, make
distclean, configure, make and make install with Mythtv-0.18.1 (so that
Mythtv would see the new kernel DVB drivers).

Its really weird - the DVB "watch tv" or recording/replaying (both through
the PVR350 output) are really jerky/stuttering.  This problem was not here
with 0.16 (actually I think I was lastly running 0.17 but it was fine too). 

When this is happening uptime is showing very little usage (its watching on
the Nexus-S dvb card now and recording on the PVR350 and uptime is 1.02) and
no strange output in dmesg or messages log file.

Has anyone else come across this problem?  I think I might have to downgrade
back to 0.17.

Thanks,

Derek

-----Original Message-----
From: mythtv-users-bounces at mythtv.org
[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Derek Conniffe
Sent: 24 June 2005 10:31
To: mythtv-users at mythtv.org
Subject: [mythtv-users] 0.18.1 DVB-S Stuttering

Hi,

I've [almost] successfully upgraded from MythTV 0.16 to 0.18.1 but I have a
new DVB-S "stuttering" problem.

I playback DVB-S recording through a PVR350 output.  I'm using SuSE Linux
9.1 with a 2.6.8 kernel and the DVB drivers from the kernel source.

With the upgrade to MythTV 0.18.1 DVB-S playback - or Live DVB-S watching -
is like a broken CD - its all stuttering which small samples looping before
jumping on to the next set of looping samples - I'd guess maybe 1/10 of a
second loops about 4 times and then jumps on 400ms to the next looping
samples.

I wonder if my problem is the older kernel DVB drivers - I saw a warning
with the MythTV 0.18.1 compile telling me that its ok not to specify the DVB
driver source directory if I'm using kernel DVB drivers with a kernel
version > 2.6.9 I think.  But I choose to ignore this because it compiled
nicely - until it was pointed out to me that it hasn't been recording
CBEEBIES (Children's channels) on satellite correctly this morning!

Thanks for any help,

Derek

--

Derek Conniffe

Rivertower Ltd

Main Line: (Lo Call) 1890 45 70 74 (International: 00 353 1 201 0180)

Direct Line: 01 201 0146 (International: 00 353 1 201 0146)

Mobile: 086 856 3823 (International: 00 353 86 856 3823)

Fax: 01 201 0085 (International: 00 353 1 201 0085)

Email: Derek at rivertower.ie

Web: http://www.rivertowerhosting.com

 


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