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Ticket #13331: Raspberry pi: Poor performance on new versions of Raspbian
#13331: Raspberry pi: Poor performance on new versions of Raspbian
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Reporter: Peter Bennett | Owner: Peter Bennett
Type: Bug Report - General | Status: new
Priority: minor | Milestone: needs_triage
Component: Ports - rPi | Version: v29.1
Severity: medium | Keywords:
Ticket locked: 0 |
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With Raspbian stretch versions later than 2017-11-29, playback is jerky.
Using the 2017-11-29 version and doing no updates works fine.
Unfortunately, the PI3 B+ does not work with versions earlier than 2018 so
owners of that model cannot simply downgrade to the earlier version of
Raspbian.

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Ticket URL: <https://code.mythtv.org/trac/ticket/13331>
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Re: Ticket #13331: Raspberry pi: Poor performance on new versions of Raspbian [ In reply to ]
#13331: Raspberry pi: Poor performance on new versions of Raspbian
----------------------------------+-------------------------------
Reporter: Peter Bennett | Owner: Peter Bennett
Type: Bug Report - General | Status: new
Priority: minor | Milestone: needs_triage
Component: Ports - rPi | Version: v29.1
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
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Comment (by Peter Bennett):

Selecting playback profile OpenMAX Normal and audio device ALSA:Default
works well with these later versions of Raspbian. The OpenGL OSD causes
severe problems and the IEC device for digital audio no longer exists.

I will look into it further to see what can be done to get it all working
normally again.

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Ticket URL: <https://code.mythtv.org/trac/ticket/13331#comment:1>
MythTV <http://www.mythtv.org>
MythTV Media Center
Re: Ticket #13331: Raspberry pi: Poor performance on new versions of Raspbian [ In reply to ]
#13331: Raspberry pi: Poor performance on new versions of Raspbian
----------------------------------+-------------------------------
Reporter: Peter Bennett | Owner: Peter Bennett
Type: Bug Report - General | Status: new
Priority: minor | Milestone: unknown
Component: Ports - rPi | Version: v29.1
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
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Changes (by Peter Bennett):

* milestone: needs_triage => unknown


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Ticket URL: <https://code.mythtv.org/trac/ticket/13331#comment:2>
MythTV <http://www.mythtv.org>
MythTV Media Center
Re: Ticket #13331: Raspberry pi: Poor performance on new versions of Raspbian [ In reply to ]
#13331: Raspberry pi: Poor performance on new versions of Raspbian
----------------------------------+-------------------------------
Reporter: Peter Bennett | Owner: Peter Bennett
Type: Bug Report - General | Status: closed
Priority: minor | Milestone: unknown
Component: Ports - rPi | Version: v29.1
Severity: medium | Resolution: Invalid
Keywords: | Ticket locked: 0
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Changes (by Peter Bennett):

* status: new => closed
* resolution: => Invalid


Comment:

Turning off verbose logging and using the audio setting audio_pwm_mode=1
gets to a reasonably good performance level with the latest Raspbian. See
the wiki for details.

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Ticket URL: <https://code.mythtv.org/trac/ticket/13331#comment:3>
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