On 2022-07-27 18:04:26, o1bigtenor via Dng wrote:
> Greetings
>
> Running a AMD 3800X with a Radeon RX570X graphics card using
> opensource amdgpu drivers (version compiled for 1.21.1.3, module
> version = 22.0.0, Module class: X.Org Video Driver, ABI class: X.Org
> Video Driver, version 25.2) running xorg-server 2:21.1.3-2+b1.
>
> I think my system is reasonably upto date running Daedalus. (Last apt
> update check done this morning.)
>
> The issue - - -
>
> After a system reboot the screens will enter screensaver pretty
> picture mode and then blank to off at the chosen times. I've got 5
> monitors set up to display most of a 7680x3000 virtual desktop.
> Also run a lot of desktops and tend to accumulate a lot of tabs in my
> browsers. Run at least 3 browsers at once (Opera, Brave and Firefox)
> with Firefox as the default and have in the past also run Vivaldi.
> Firefox is the default browser.
> Firefox is the only browser that will place its windows where I had
> them on the various desktops. Finding this I have reduced every other
> browser to windows on at most one 'desktop'. That is the only way that
> I can get any time at all where the screensaver just does its job.
> The problem is that after about 80 hours (or so - - - - haven't
> defined that time with any precision) the screensaver will move to the
> pretty pics screens but does NOT move to screen off.
>
> I have been trying to find what in either the browsers is hindering
> the screen 'blanking' (if I'm using the correct term) or is breaking
> on my system - - - dunno. Have been looking at xset as well but really
> don't know what the bleeping blazes I'm doing and don't want to create
> an even bigger mess!
> I am using lxqt still on version 0.16.0 trying to wait patiently for
> version 1.01 which is supposedly going to move from experimental to
> unstable and testing hopefully very soon but that timing is NOT up to
> me.
>
> Is there someone out there in Devuan land who has any idea of how to
> change this annoying behavior?
> Can I change something in Xset to make this happen?
> Something else?
>
> (I can reboot and set up things the way I want (takes about 1/2 hour
> in total to do everything) so I find that this time every 4 days is a
> nuisance. )

That sort of thing was driving me crazy for ages, screensaver would blank
the screen, but not turn the monitors off. I finally tracked it down.
In my case it was running SDL based programs, the fix is -

export SDL_VIDEO_ALLOW_SCREENSAVER=1

That may or may not be your problem though.

--
A big old stinking pile of genius that no one wants
coz there are too many silver coated monkeys in the world.