I'd been having screensaver problems for a long time - nowadays, I just increase the time before activation to a ridiculously long time, like 3 days!

(Power saving - everything set to 'never'.)

I think that I once had to manually create an EFI partition on one of my disks, before running the installer, (not sure if it was Devuan or another distro), then mark it as 'boot' & something else with 'manage flags' when partitioning - may or may not work for you.

I have used a Windows version before, there is one here - http://www.chrysocome.net/dd

You could also use your Debian 'live' USB drive to install the image to a second USB drive - but be careful of which drive you put it onto, (check their sizes carefully).

I always use dd - try using that, mine worked fine on a chromebook.

Many thanks for the new (beta2) .iso - will try it probably tomorrow.

EDIT: Change of plans - made time to try it - worked perfectly - (after I remembered how to with the UEFI installer ) - many thanks, chromebook now running 'beta2'.

The doas program is an updated sudo basically, with less options making for more security, first appeared on OpenBSD.

They tend to stick with tried & tested kernels, if you want the latest, you might have to use 'sid'.

But.......don't all processor chips have proprietary code in them......I really can't see much difference - but blobs can be updated by a user, or maybe even replaced by different code.

For a regular desktop user, i.e. internet, photos, music, movies, wordprocessor, spreadsheet user, a Raspberry Pi 4B is the answer, & we have Devuan to put onto it - a win/win situation!

N.B. The RPi4B with 2GB ram is only about £35/$35 & is silent in operation - 4GB is about £55/$55 - 8GB about £75/$75.

Sometimes, when you change a setting, all your options get removed, so when you return, you may have lost your options that you had previously set, that's why I asked whether you reset them when you returned to the previous WM theme.

(It was just a thought.)