On Fri, 6 Dec 2019 19:27:14 -0700 "D. R. Evans" doc.evans@gmail.com wrote:
Dr. Nikolaus Klepp wrote on 12/6/19 4:34 PM:
Anno domini 2019 Fri, 6 Dec 16:30:14 -0700 D. R. Evans scripsit:
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.
can you run "top"or "htop" on a console (e.g.: <ctrl>+<alt>+<f1>)?
top -b -n 1 produces (while the flickering is occurring):
[...]
2808 n7dr 20 0 2388 568 496 S 0.0 0.0 0:00.00 sh 2809 n7dr 20 0 2280 536 476 S 0.0 0.0 0:00.00 kwrapper 2811 n7dr 20 0 78568 20840 13980 S 0.0 0.1 0:00.86 ksmserver 2812 n7dr 20 0 82308 20724 15088 S 0.0 0.1 0:01.61 twin 2813 n7dr 20 0 82936 21308 15020 S 0.0 0.1 0:01.56 twin 2817 n7dr 20 0 157600 24272 18656 S 0.0 0.1 0:18.82 kdesktop 2829 n7dr 20 0 90824 26532 18252 S 0.0 0.1 0:01.68 kicker 2830 n7dr 20 0 90808 26532 18288 S 0.0 0.1 0:02.87 kicker 2832 n7dr 20 0 70840 10676 7480 S 0.0 0.0 0:00.00 tdeio_file 2837 n7dr 20 0 70840 10720 7524 S 0.0 0.0 0:00.00 tdeio_file 2839 n7dr 20 0 70840 10720 7524 S 0.0 0.0 0:00.00 tdeio_file
[...]
The doubled-up instances of kicker and twin jump out at me as a possible conflict.
E. Liddell