[mythtv-users] Lots of problems with 0.13

Harley Peters harley at hpeters.net
Mon Dec 29 15:10:42 EST 2003


Hans-Christian Prytz wrote:
> Harley Peters wrote:
> 
>> Well i'm running gentoo linux 1.4 with the 2.4.22-gentoo-r2 kernel on 
>> a pentium 4 2.4ghz with dual pvr 250's and it is rock solid.
>>
>>
>> What version of the ivtv driver are you using ? I'm using the one from
>> http://www.kernel.org/pub/linux/kernel/people/axboe/ivtv/ivtv-031125A.tar.bz2 
>>
>> with the close_stream_patch which you can find on the ivtv mailing list.
>> This is no longer the latest driver there is a newer driver in cvs but 
>> i haven't tried it yet.
> 
> 
> 
> I have tried the cvs version from about dec. 23 and the new 0.1.6 driver 
> thet was released yesterday. I haven't tried the one you mention there, 
> but maybe I should. THen I just have to find the correct patch :-)
> 
> How is the rest of the system holding up to the amount of data being 
> transmitted if you record two things and watch a third?
> 
>>
>> 1. Kernel panics
>> Do you happen to have either the low latency scheduling or the Timer 
>> frequency (HZ) set to the default (1000) in the kernel options.
>> I orginally compiled the kernel with both of those and had problems.
>> When I recompliled i turned off the low latency scheduling and set the 
>> Timer frequency (HZ) setting to a more "normal" (200). And it has worked
>> perfect since. Not sure which one acctually fixed the problem since i 
>> changed both at the same time.
> 
> 
> 
> I had the low latency scheduling turned on, but Timer freq. was at 200. 
> I'm recompiling without low latency right now, so we'll se how that goes.
> 
>>
>> 2. Sound repeating
>> Sorry don't have any idea what that could be.
> 
> 
> Haven't found anything yet myself.
> 
>>
>> 3. Browsing list of recorded programs is slow.
>> Well i have found this to be a little slower in .13 than .12 but it 
>> shouldn't take 4-5 seconds.
>> One thing you can do if your running mysql 4 is turn on query caching.
>> add
>> query_cache_size=16M
>> to /etc/mysql/my.cnf
> 
> 
> I'll try that
> 
>>
>> 5. Loosing focus.
>> Well i've had this problem for sometime the only thing i've been able 
>> to   do about it (assuming your running kde) is in the kde control 
>> center under Desktop/Window Behavior set Focus Policy to Focus under 
>> mouse. You  will probably want to play with the Auto raise delay 
>> setting aswell.
> 
> 
> 
> Actually I use fvwm, and haven't had any problems at all until now.....
> Has anything changed in the way mythfrontend behaves?
> 
> 
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The heaviest load is actually seen when watching live tv and recording a 
second program at the same time. Even then cpu usage never goes above 
25%. And that's with jitter reduction and experimental a/v sync on.
I watch live tv at 720X480 with a 10000/16000 data rate.
And i record at 720x480 with a 4000/16000 data rate.

As far as i know nothing has changed between .12 and .13 that would 
affect the focus behavior.

Harley Peters



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