[mythtv-users] Slow channel changing (was Mythtv questions)

John Sutherland garion at twcny.rr.com
Fri Apr 9 11:25:27 EDT 2004


I updagraded to CVS version last night, and yep, sure enough, my channel
change in 1-2 seconds now! Awesome..

-- 
--John

Matthias Badaire said:
>
> Did you try the last cvs. A patch I did some time ago has been integrated
> a few weeks ago.
> M
>
> John Sutherland <garion at twcny.rr.com> writes:
>
>> Ok, I've been doing some playing around.
>>
>> Here's what I've done: I have pointed my recording data to another
>> machine via
>> NFS.. This knocked my channel change time to about 7 seconds.. Large
>> improvement.. I then changed my mysql database to a remote server.. This
>> did
>> -not- change the time.. Still 7 seconds..
>>
>> To answer some questions and emails I received privately:
>> 1. My OSD time is whatever the default is, I have never changed it.
>> 2. I am not using an external tuner app..
>>
>> Here's what happens when I change the channel, maybe it'll shed some
>> light
>> onto it for someone:
>>
>> 1. I press the channel change key (via the remote or keyboard)
>> 2. The video pauses on the current channel
>> 3. After a second or 2, it displays an image from the new channel, but
>> is
>> paused.
>> 4. after several more seconds, the video starts on the new channel, and
>> the
>> OSD finally displays.
>>
>> Doing a dd from video0 to video16, and then using the test_ioctl stuff
>> to
>> change channels, it happens within second or 2.. So its something with
>> MythTv
>> thats causing it..
>>
>> Maybe tomorrow I'll go and get a new drive for the machine...
>>
>> --John
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