LibreELEC (Leia) 9.2 ALPHA1 with Raspberry Pi 4B Support

marine88 · July 3, 2019 at 7:15 PM

Quote from angelbunny

On my end it is easily reproducible. It only crashes when trying to connect to the network. And no, I can not connect to the network, even when it does not crash. This problem is nonexistent in Raspbian, implying it is a software issue.

Does LibreELEC do vnc? I can privately give you ssh, if you want to explore and reproduce the issue yourself. Unfortunately I do not have a second Pi or sd card to absolutely verify this is a software issue.

MIne has the video files in network and I use userdata.xml to point to a mysql database and crasching after 5 minutes of use is simple unusable waiting for another build patiently

Selwro · July 3, 2019 at 7:38 PM

Quote from popcornmix

Add hdmi_enable_4k=1 to config.txt and you should see the 4kp60 modes.

(4kp60 requires higher clock frequencies and scrambling so isn't enabled by default).

HDR isn't currently supported but should come soon.

Will give it a try. Thanks for the info

noggin · July 4, 2019 at 10:32 AM

Quote from Iridium

I'm sure a third party will soon come up with a GPIO cooling solution so the fan is only one once it get too hot. Maybe even there will be a RPi4B++ with an on board fan controller - but don't hold your breath.

Pimoroni launched a fan shim shortly before the Pi 4B launched.

Fan SHIM for Raspberry Pi – Pimoroni It has a user definable switch and RGB LED.

philrandal · July 4, 2019 at 1:20 PM

Quote from noggin

Pimoroni launched a fan shim shortly before the Pi 4B launched.

Fan SHIM for Raspberry Pi – Pimoroni It has a user definable switch and RGB LED.

I just need to figure out how much clearance above the fan shim I'll need for the TV HAT and how to bodge the Pimoroni Pibow case to fit it all (the case bolts won't be long enough).

Phil

Mario77 · July 4, 2019 at 1:40 PM

Quote from philrandal

I just need to figure out how much clearance above the fan shim I'll need for the TV HAT and how to bodge the Pimoroni Pibow case to fit it all (the case bolts won't be long enough).

Phil

Get a small fan and fit it on top,outside of the case..

**thoradia** · July 4, 2019 at 5:33 PM

Hello

I encounter the issue below with Python on Raspberry Pi 4

I am not sure that this is limited to the Python multiprocessing module

This issue does not occur with 9.1.001 (RPi2.arm)

I could not find a fix

The only meaningful occurrence of semlocktype I could find is here

I hope someone here knows how to fix

Let me know how I can help

Code

##############################################
#                 LibreELEC                  #
#            https://libreelec.tv            #
##############################################

LibreELEC (official): 9.1.001 (RPi4.arm)
test:~ # python
Python 2.7.16 (default, Jun 23 2019, 14:19:31)
[GCC 8.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import multiprocessing
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/multiprocessing/__init__.py", line 84, in <module>
ImportError: /usr/lib/python2.7/lib-dynload/_multiprocessing.so: undefined symbol: SemLockType

Display More

novalis · July 4, 2019 at 5:56 PM

My Pi is ideling around 73 degrees, with a heatsink on top.

novalis · July 4, 2019 at 11:46 PM

I am not sure where to report this since it is not clear what caused it. The Netflix addon got smashed. Until yesterday it was working and now it is not anymore. Settings screen is completely wiped, nothing to configure anymore. Tried to reinstall, no success.

Any one else can confirm this.

**milhouse** · July 4, 2019 at 11:49 PM

Quote from novalis

Tried to reinstall, no success.

Tried to reinstall Netflix, or LibreELEC?

I have seen the Netflix settings appear without text, restarting Kodi fixed it.

novalis · July 4, 2019 at 11:54 PM

reinstalled the addon. Tried restart as well.

I wonder if some automatic update of a dependency may have caused this...

novalis · July 4, 2019 at 11:57 PM

look

**milhouse** · July 5, 2019 at 12:25 AM

Always test with stock Estuary...

novalis · July 5, 2019 at 12:35 AM

Quote from milhouse

Always test with stock Estuary...

I did. It looks the same.

**Da Flex** · July 5, 2019 at 6:54 AM Official Post

Quote from novalis

I did. It looks the same.

You already screwed your RPi3 with a custom skin (still unsolved). Now you switch to the next gen, and screwed it again. Congrats!

**HiassofT** · July 5, 2019 at 10:19 AM

Quote from thoradia
Hello

I encounter the issue below with Python on Raspberry Pi 4

I am not sure that this is limited to the Python multiprocessing module

This issue does not occur with 9.1.001 (RPi2.arm)

I could not find a fix

The only meaningful occurrence of semlocktype I could find is here

I hope someone here knows how to fix

Let me know how I can help
Code
##############################################
#                 LibreELEC                  #
#            https://libreelec.tv            #
##############################################

LibreELEC (official): 9.1.001 (RPi4.arm)
test:~ # python
Python 2.7.16 (default, Jun 23 2019, 14:19:31)
[GCC 8.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import multiprocessing
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/multiprocessing/__init__.py", line 84, in <module>
ImportError: /usr/lib/python2.7/lib-dynload/_multiprocessing.so: undefined symbol: SemLockType
Display More
Display More

This could be an obscure python build issue. I've built the RPi4 release image in a Debian Stretch chroot on my laptop, the other release images were built by jenkins.

I see that SemLockType is not defined in my RPi builds in the chroot, but on an older LE 9.0 RPi2 build on my other build box with Debian Stretch I see it's defined. Looks like for some odd reason semaphore.c (which defines SemLockType) wasn't built in the chroot.

I'll dig into what went wrong, probably some missing hint to configure.

The next release will be built by jenkins, so it'll probably be fine even if I don't find out what went wrong by then

so long,

Hias

noggin · July 5, 2019 at 10:31 AM

Quote from philrandal

I just need to figure out how much clearance above the fan shim I'll need for the TV HAT and how to bodge the Pimoroni Pibow case to fit it all (the case bolts won't be long enough).

Phil

Pimoroni used to sell extra slices for Pibow cases to let you make them HAT-friendlier. Not sure if they still do? They are usually pretty helpful via email (though a lot busier these days!)

Freestyler · July 5, 2019 at 11:36 AM

Quote from Adr3nal1n

Some further feedback on idle temps,

RPI4 2GB idling in official case: 70c (room temp 20c)

RPI4 2GB idling with top half of official case removed: 61c (room temp 20c)

RPI4 2GB idling with top half of official case removed and new firmware applied: 58c (room temp 20c)

I installed the new firmware from here: Raspberry Pi 4 temperature - Page 4 - Raspberry Pi Forums

Going forwards, I plan to remove the official case and instead use a Pibow Coupe case with passive heatsink installed. Ninja Pibow Coupé 4 (Raspberry Pi 4 only) – Pimoroni

Hope this feedback helps.

Display More

Hi i did a lot of testing and playing with temps, used various cases and added heatsink, you can see it in post #96. Link below. It should be repaired in new firmwares, but active cooling should help a lot too. I'm waiting for my reseler when he will have coolers I will test it with custom case.

LibreELEC (Leia) 9.2 ALPHA1 with Raspberry Pi 4B Support

Selwro · July 5, 2019 at 12:40 PM

Quote from popcornmix

Add hdmi_enable_4k=1 to config.txt and you should see the 4kp60 modes.

(4kp60 requires higher clock frequencies and scrambling so isn't enabled by default).

HDR isn't currently supported but should come soon.

Update. I did this and sure enough the 4k 60hz modes appeared. Thanks again.