As I wrote here some weeks ago I updated my MNT Reform 2 laptop with
the latest RCORE CPU. So now I have a really fast ARM laptop. My own
code runs here 2 times slower than it does on my OpenPOWER workstation
with the POWER9 CPU. White slower, the reform also consumes many times
less power (and it is way more portable than my desktop workstation,
too!).
Other things are black magic, though. The Reform 2 uses a system
controller to start and to shutdown the machine, to report battery
status and so on (as the OpenPOWER does). The Linux requires a kernel
module to acces the system controller. I do have the thing and it used
to work well before the upgrade. After that it sometimes works.
It is recommended to recompile the module if it does not work. I did it
(many times) and it helped... sometimes. Usually it fails to start
after the next reboot or shutdown. I was pointed to older kernel bug
related to that but it seems to be already fixed (and no one except me
has this issue).
I didn't use the Reform for about a week and when I powered it today
then everything worked - battery status was available, shutdown worked.
After the Debian update and reboot it refused to work (as usual). It's
not a big issue as the system controlled can output to the tiny LCD
above the keyboard so I can see battery status here. Also, I can power
off the controller from the keyboard. But it's ... strange.
