https://bugs.kde.org/show_bug.cgi?id=526512

[email protected] changed:

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--- Comment #11 from [email protected] ---
I suspect this is an nvidia problem. I also have an intel + nvidia laptop.
Whenever the nvidia gpu is still on when I close the lid or suspend it always
resumes very wacky and things break, mostly in regards to the screen freezing
and other things. 

For me the issue is also compounded when the laptop is connected to and
external monitor (via nvidia gpu) and then suspended / resumed. 

To get more details about whether the nvidia gpu is still on before suspend you
can run 
"cat /sys/bus/pci/devices/0000:01:00.0/power/runtime_status", it should print
suspended. One shouldn't use nvidia-smi as that wakes the gpu up. 

By default the nvidia gpu should be at that address, but if it's not you can
run "lspci" to check (look for VGA ... NVIDIA).

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