[Volunteer needed]Too high DRAM clock speed MAY be causing you random crashes/freezes

[devrtz]

I went to 552 because I just can't wake up properly from standby, I get just a black screen. But I get that even with 552. Is the stock u-boot somewhere in the filesystem? If not, I'll reflash to mobian soon anyways.

I have the same problem in the latest image. I think this is a separate issue with suspend right now (it did work for me on an older release though), which is being looked into.
For now I would suggest disabling suspend.

[Djhg2000]

I haven't received my PinePhone yet, but I found this hint at a memtest facility built into Linux we might be able to use: https://github.com/raspberrypi/linux/com...b4509c9e85

Not sure if this would work on a PinePhone as I have no way to test it but I thought I'd let you know anyway.

[devrtz]

Thanks, I will have a look into this!

[Djhg2000]

Actually, the more I read about memtest in the Linux kernel the more I think we want it in the regular images. Combined with a boot option to use it I think it will help extend the service life of our devices towards the end, in addition to serving as a fast way to check RAM for trivial bit pattern errors. The results are readable in the kernel log and could easily be read with a script, or probably an app with a graphical representation of the bad memory.

Actually, this sounds like an easy enough project to get started with for learning how to develop apps for the PinePhone. I'll have a look around and see what I can come up with.

[33YN2]

Would this uboot binary work with ubuntu touch?

[devrtz]

Would this uboot binary work with ubuntu touch?

It should work with any distribution.
But to be sure you can make a backup of the existing uboot by doing the "reverse" dd.

Code:

# dd if=/dev/sdX of=uboot-backup.bin bs=8k seek=1

@Djhg2000 I haven't yet looked into how to specify kernel commandline arguments from uboot, but it should be relatively simple.
I will have a look this week and post an update here.

[kenigan]

Thank you Devrtz, I too was suffering random crashes on the latest mobian image as well as ubports.  I could not figure what was going on with my pinephone until I read your post.

576MHz has been working for me well.

[miaegaal]

567MHz here too.

[devrtz]

Thank you Devrtz, I too was suffering random crashes on the latest mobian image as well as ubports.  I could not figure what was going on with my pinephone until I read your post.

576MHz has been working for me well.

You are very welcome, glad I could help you

[dukla2000]

Didn't realize the immediacy of this thread: as soon as I brewed my first Mobian install had a torrid time, couldn't get Firefox or Web to load 2 pages in a row without crashing (either themselves or phosh). Backed off to 552 and have a usable phone.