[mythtv-users] Mythfrontend on Raspberry 4 running Ubuntu 20.04 (32bit)

[Greg Oliver]

On Sat, Aug 8, 2020 at 4:31 PM Greg Oliver <oliver.greg at gmail.com> wrote:

> On Sat, Aug 8, 2020 at 4:26 PM Jim Abernathy <jfabernathy at gmail.com>
> wrote:
>
>> On 8/8/20 1:30 PM, Greg Oliver wrote:
>>
>> On Sat, Aug 8, 2020 at 12:13 PM James Abernathy <jfabernathy at gmail.com>
>> wrote:
>>
>>> So I'm really bored today and recently discovered that the Raspbian
>>> Imager can create an SD card with Ubuntu 20.04 either 32 or 64 bits.
>>>
>>> Turns out it's the server version, no desktop environment.
>>>
>>> I thought why not try to install mythfrontend on it.  I first tried
>>> mythtv-light and it would not install due to some dependencies. So then I
>>> tried:
>>> sudo apt install mythtv-mythfrontend; which did install.  I rebooted and
>>> noticed that it had installed a limited ubuntu desktop with just a few apps
>>> including mythfrontend.
>>>
>>> So I ran it and it worked. I picked the same audio I'd pick for the
>>> raspbian version and for Video, I didn't see MMAL, so I picked V4L2 and set
>>> up to do standard, 4 CPUs and opengl.
>>>
>>> I'm surprised that it worked.  The video isn't bad particularly since
>>> I'm running mythfrontend on top of a desktop environment.
>>>
>>> I tried setting the default boot to multi-user and rebooting without a
>>> desktop but I couldn't get mythfrontend to run using:
>>>
>>> QT_QPA_EGLFS_ALWAYS_SET_MODE="1" QT_QPA_PLATFORM=eglfs mythfrontend
>>>
>>> It couldn't find a drm device or something.
>>>
>>> Also it ran the mythfrontend version from March while the x86_64 version
>>> is up to  an August version.
>>>
>>> Anyway it's interesting what I've stumbled on.
>>>
>>> Jim A
>>>
>>
>> If you have the 4GB Pi, I would recommend loading Android on it - Lineage
>> OS has a port for it on XDA.  That gives you a lot more options for other
>> players.
>>
>> Note: I have not tried this yet, but plan to as soon as I get my other
>> Android TV device working.
>>
>> The folks online who have tried this are not too keen on the video
>> performance.  I may try it anyway just to see.
>>
>> Jim A
>>
>
> Yeah - I had not read that far into it yet, but I did read that Lineage
> had an accelerated driver for it I thought.  Maybe I had already fallen
> asleep and it was a dream though :)
>
> I'll probably give it a whirl tomorrow morning - I am Android'ed out today
> working on this bastardized AT&T TV box I got.
>
> -Greg
>

Looks like 17.1 has accelerated video :
https://www.xda-developers.com/developer-ports-lineageos-17-1-based-on-android-10-to-the-raspberry-pi-4-b-3-b-and-3-b/

>From the page ::

The complete list of working features includes the following:

   - Audio (HDMI, 3.5mm jack, USB microphones, bluetooth speakers/headsets,
   etc)
   - Audio DAC (using PCM512x DACs e.g. Hifiberry DAC+)
   - Bluetooth
   - Camera (using official Pi camera modules & UVC USB webcams with
   SwiftShader software renderer)
   - GPIO
   - GPS (using external USB modules e.g. U-Blox 7)
   - Ethernet
   - Hardware accelerated graphics (V3D/VC4)
   - HDMI display
   - I2C
   - IR remotes (using external GPIO IR modules e.g. TSOP4838)
   - RTC (using external GPIO I2C modules e.g. DS3231)
   - Serial console (using external GPIO serial console adapters e.g.
   PL2303)
   - SPI
   - Touchscreen/multi-touch (using official 7” display with SwiftShader
   software renderer)
   - USB (mouse, keyboard, storage, etc)
   - Wi-Fi
   - Wi-Fi tethering
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