LTE Modem activity and CPU freezing by few seconds waves
#2
Hi @jrobin28260,

I have encountered another problem with LTE (4G) that may be related to the problem you reported.

I have connected an HDMI screen using the official USB-C dock of the convergence package or a third party Anker USB-C dock.
When I use the LTE connection actively, for example downloading a web page on LTE data or doing a speed test, the HDMI screen becomes black for a few seconds.
The screen comes back shortly after but becomes black again on the next LTE data activity.

I verified that this issue does not happen if I select 3G only data connection, so this only happens with 4G LTE connection.

I reproduced the issue with both my Braveheart and postmarketOS edition PinePhones, and a braveheart of a friend of mine.
The Braveheart had the CC hardware fix to make HDMI output work.

Note: I was using postmarketOS with Phosh as O.S. but the problem happens also with Mobian
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Messages In This Thread
RE: LTE Modem activity and CPU freezing by few seconds waves - by fizzo - 02-05-2021, 02:25 AM

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