[mythtv-users] Mythtv-frontend memory usage?
jfabernathy at gmail.com
Wed Dec 5 10:19:49 UTC 2018
On 12/5/18 5:09 AM, John wrote:
> On 04/12/2018 20:43, James Abernathy wrote:
>> I’m trying to build a Raspberry PI 3 B+ dedicated to Mythth-frontend.
>> I’m close to where I need to be, but years of working on selling
>> CPUs into GFX and Video applications makes me hyper sensitive to
>> minor video issues. I think it’s a curse in this case.
>> Giving 256MB of RAM to the GPU limits you some. Things I noticed
>> that surprised me a little.
>> 1. If I have Raspbian Lite, Xserver, XFCE, and lightdm with
>> Mythtv-frontend, Mybuntu 28.21 theme and an HDTV recording playing I
>> have 35 MB of memory free with no Swap used. Here I launched
>> mythfrontend after setting performance mode on scaling governor.
>> 2. If I only install xserver, matchbox window manager, lightdm with
>> the Mythtv stuff as #1 I also have 35 MB free
>> 3. Using Openbox instead of Matchbox the same 35 MB free.
>> Both 2 and 3 autolaunch and autologin per the Mythtv RPI wiki
>> 4. If I change the theme to the Default Mythtv 1.4/7 one, then I
>> have 122 MB free.
>> 5. FE locked up if I tried to run the Xmas theme. I imagine it has
>> the largest memory load.
>> In either case the video performance is the same. Basically the video
>> is great if the motion is not too fast. quick panning is jumpy.
>> I basically followed the tips from the Mythtv Raspberry pi wiki.
>> Anything else I can try?
>> My goal is to use the RP3B+ as my frontend without having to use Kodi
>> 18. The video performance of Kodi 18 on RP3 is very good compared to
>> Mythtv FE, but the Kodi interface is not to my liking.
>> I have a NUC Core i3 running Xubuntu with Mythtv FE on it and it
>> works perfectly, but I need the NUC else where.
>> BTW, I tested the Kodi 18rc on the NUC and it’s video is not as good
>> as 17.6 and when it was installed it messed up the Mythtv FE. I had
>> to uninstall Kodi 18rc to get Mythtv FE back to normal. The only way
>> I could see the video issue was to watch a news crawl across the
>> bottom of the screen.
>> Jim A
>> mythtv-users mailing list
>> mythtv-users at mythtv.org
>> MythTV Forums:https://forum.mythtv.org
> I find the panning judder on the pi with myth 29 unacceptable at
> 1280i. Version 30 pre is an improvement with the new sync mechanism
> and I find 720i acceptable on a 32ins TV. Kodi gives perfect pictures
> at 1280 if you are ok with the interface. Using Rasbian out of the box
> with 256m screen memory and Steppes theme not suffering memory issues,
> The Firestick 4K is a game changer with picture quality as good as
> Nvidia. It is not however currently reliable enough for production use,
> The Firestick 4K is much bett
Interesting feedback. I have 3 questions:
1. Are we talking about this Firestick 4K?
2. Will the ethernet adapter I use on my non-4k version of the Fire
Stick work on the new 4K version?
3. Will Version 30 Pre Frontend on RP3 server video from my 29.1 backend?
> mythtv-users mailing list
> mythtv-users at mythtv.org
> MythTV Forums: https://forum.mythtv.org
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the mythtv-users