Stable mobile data connection

As per https://source.puri.sm/Librem5/OS-issues/-/issues/328#note_249493 changing autosuspend_delay_ms from 500 to 2000 makes it stable. That is probably a work around and ideally we should get this working with 500 for better battery life or measure how much extra power this increased auto suspend delay is causing and decide.

I had to disable auto suspend to get data connection stable. Update: this did not fix the whole situation and made resume from suspend worse. So I have turned back modem auto suspend on and kept delay 5000 ms (from its original 500 ms).

Also applies to OP6/6T

Mobile data is stable over here for Oneplus 6T.

@baarkerlounger can you confirm if you have issues with OP6 or OP6T ?

I do yes (OP6T). I have automatic suspend on, and relatively frequently find the data connection has gone when it wakes. It requires a reboot to reconnect. I don't remember off-hand if it also sometimes happens without suspending, will monitor.

I'm not sure if this is the same as the issue on the L5, it seemed similar enough that I'd grouped them.

@baarkerlounger I think we need to separately track issues that comes when waking up from suspend and issues that happen without suspend. For Librem 5, data connection drops without suspend.

This is highly dependent on hardware, we have to tackle each device independently.

Even though most Librem 5 users stick with PureOS and crimson won't have this issue, this will eventually have to be fixed for dawn. So not sure if we should wait for crimson release and Purism to start working on dawn? Ideas? @Guido @devrtz ? I can confirm data connection is stable again after downgrading from mobian trixie to mobian bookworm.

You're likely looking at an L5 specific issue and I think it's not fixed (so you're likely mostly lucky on crimson). Mobile Data is stable on e.g. PP or OP6 (a comment above suggests otherwise) for me .

These issues are very much device dependent.