D. R. Evans wrote on 12/6/19 2:30 PM:
D. R. Evans wrote on 12/6/19 10:54 AM:
I just installed TDE on a new-to-me system
running debian stable (buster).
All the initial system installation was done from a live CD, and it installed
KDE. That installed version of KDE works as well as KDE ever works these days.
In particular, though, the screen looks fine (1920x1200) and everything works
as expected.
In the newly-installed TDE, though, the desktop flickers wildly and the
desktop is simply unusable: input is lost during the flickers, so most
keyboard/mouse input is not even seen by the desktop.
Where should I look to try to eliminate all the flickering so that I can get a
usable TDE?
More info:
The background doesn't flicker at all. What is flickering are the panel and
the default icons on the desktop, many times a second.
If I succeed in bringing up the TDE menu (which, if I click enough times,
eventually does appear when I succeed in timing a click at a moment when the
desktop is accepting input), then the flickering stops for as long as the menu
is visible.
More info:
After a few minutes of I trying to use this (basically unsable :-( ) TDE, it
suddenly popped up a dialog that said that the screen was locked and requested
that I enter my password. When I did that, I was returned to the session, but
the flickering had stopped.
So that suggests the question: what causes the screen to lock and the popup
requesting unlocking to appear? Somehow that seems to be related to the
flickering problem.
Doc
PS I have no screensaver set.