I measured today the energy consumption on a AMD APU and experienced an increased energy consumption of kwin during an active screen lock. In my case the system consumed idle on the desktop 11 Watt (Wayland), but as soon as the lock screen kicks in, the system consumes continuously 13,5 Watt. Even if the screen is turned off, the energy consumption is with 12,5 Watt still higher than on an idle desktop. If I open htop with ssh and look at the CPU% of kwin_wayland, it is on the desktop more or less idle (mostly at 0%), but with the lock screen it is at 5% and with the monitor turned off at 2%. STEPS TO REPRODUCE 1. Open Plasma (Wayland) 2. Wait until the screen is locked OBSERVED RESULT - Increased energy consumption EXPECTED RESULT - Same or less energy consumption Operating System: Arch Linux KDE Plasma Version: 5.17.5 KDE Frameworks Version: 5.65.0 Qt Version: 5.14.0 Kernel Version: 5.4.8-arch1-1 OS Type: 64-bit CPU: AMD Ryzen 3 2200G
Is the mouse cursor flickering slightly?
There is no mouse flickering. To verify, I've removed all USB devices, but there was no major difference on the lock screen regarding power consumption.
Information was added with comment 2; changing status for inspection.
There were rendering improvements in kwin, do you still see this?
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!