https://bugs.kde.org/show_bug.cgi?id=471493
Nickolas Grigoriadis <nagrigoria...@gmail.com> changed:
What |Removed |Added
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CC| |nagrigoria...@gmail.com
--- Comment #6 from Nickolas Grigoriadis <nagrigoria...@gmail.com> ---
Hi, I have the same symptoms (but a little worse).
If I use my notebook without an external monitor in wayland, the dGPU will turn
on/off as needed, but once I plug in an external monitor (used both the DP and
HDMI connectors on the notebook) and the compositor uses the external display,
it will never power down the dGPU even if everything is unplugged and the
notebook is on battery.
On X11 the dGPU will power down when unplugged and on battery.
The DP & HDMI ports on this notebook is connected to the dGPU. Internal display
is on iGPU.
I suspect that once the compositor uses a display port it keeps a handle open
to it, which inhibits the dGPU powering down at all.
My system:
Plasma Wayland 5.27.10 (Fedora 39 KDE)
kernel 6.6.8 (was the same on 6.5 series)
CPU/iGPU: AMD 4800H (renoir)
dGPU: AMD RX5600m 6GB
Notebook: MSI Alpha A4DEK
Using PPD for power management.
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