Hi all,
for some time my screen saver doesn't work anymore. After the specified time (5 min) the screen gets dark, but immediately comes back to normal.

Also when I switch off the screens (having set the "key eventhandling" to switch off the screen), the screen switches off and immedialtely switches on again.

My configuration:

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Operating System: openSUSE Tumbleweed 20210429
KDE Plasma Version: 5.21.4
KDE Frameworks Version: 5.81.0
Qt Version: 5.15.2
Kernel Version: 5.12.0-1-default
OS Type: 64-bit
Graphics Platform: X11
Processors: 4 × AMD Ryzen 3 2200G with Radeon Vega Graphics
Memory: 13.6 GiB of RAM
Graphics Processor: AMD Radeon™ Vega 8 Graphics

Also the command

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xset -q

gives the following result:

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Keyboard Control:
  auto repeat:  on    key click percent:  0    LED mask:  00000002
  XKB indicators:
    00: Caps Lock:   off    01: Num Lock:    on     02: Scroll Lock: off
    03: Compose:     off    04: Kana:        off    05: Sleep:       off
    06: Suspend:     off    07: Mute:        off    08: Misc:        off
    09: Mail:        off    10: Charging:    off    11: Shift Lock:  off
    12: Group 2:     off    13: Mouse Keys:  off
  auto repeat delay:  600    repeat rate:  25
  auto repeating keys:  00ffffffdffffbbf
                        fadfffefffedffff
                        9fffffffffffffff
                        fff7ffffffffffff
  bell percent:  50    bell pitch:  400    bell duration:  100
Pointer Control:
  acceleration:  2/1    threshold:  4
Screen Saver:
  prefer blanking:  yes    allow exposures:  yes
  timeout:  0    cycle:  600
Colors:
  default colormap:  0x20    BlackPixel:  0x0    WhitePixel:  0xffffff
Font Path:
  /usr/share/fonts/misc:unscaled,/usr/share/fonts/Type1/,/usr/share/fonts/100dpi:unscaled,/usr/share/fonts/75dpi:unscaled,/usr/share/fonts/ghostscript/,/usr/share/fonts/cyrillic:unscaled,/usr/share/fonts/truetype/,built-ins
DPMS (Energy Star):
  Standby: 0    Suspend: 0    Off: 0
  DPMS is Enabled
  Monitor is On
Font cache:
  Server does not have the FontCache Extension


In another thread I have read to issue the command

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journalctl -b0 | grep powerdevil.*Enforcing

. However the result list is empty.

Any tips how to find out which application is causing this problem?

Thanks,
Johannes

I am finding a solution for this problem, but nothing found.