Created attachment 134145 [details]
dmesg with the problem before and after suspend
Os: Arch X86_64 Updated regularly
System : Notebook Asus X556UR
Tried with bumblebee nvidia:
Works perefectly after boot
but after a suspend/wake optirun output: Failed to initialize secondary GPU
only way to make it work again is:
reboot or pci bus remove/rescan(doesn't work sometimes)
So I consulted with Lekensteyn and did numerous testings
checked nvidia card powermanagement, parent bus power mangement
PM is on for both but it just doesn't work after suspend/wake
switched to nouveau (removed bumblebee nvidia)
tested with lspci, no errors after boot
but after suspend/wake: DRM: failed to idle channel 0 [DRM]
So he suggested to file a bug for nouveau with kernel log and acpidump
Created attachment 134146 [details]
Created attachment 134147 [details]
Created attachment 134148 [details]
with bumblebee nvidia after supend/wake then running optirun:
dmesg outputs some error like "RmInitAdapter failed"
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