GNSS UART Interface No Longer Working
I tested using screen
to observe the data coming from the GNSS's UART interface on the recent "linux-image-5.3.0-librem5-dirty_5.3.0-librem5-dirty-492_arm64" kernel but I got nothing. So I flashed a really old image from back in early September and verified that it's not a hardware-related issue. So something along the way has broken.
Here's a snippet of what I get using the old image, the new image/kernel yield nothing (omitting personal info):
purism@pureos:~$ uname -a
Linux pureos 5.2.0-g46caa519a #1 SMP PREEMPT Fri Sep 6 07:11:29 PDT 2019 aarch64 GNU/Linux
purism@pureos:~$ sudo screen /dev/ttymxc1 9600
$GP,,0.0,030917,,,N*7C
...
...
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