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] acpidump
Created attachment 134147 [details] xorg log
Created attachment 134148 [details] nvidia vbios
Kernel: 4.12.12-1-ARCH with bumblebee nvidia after supend/wake then running optirun: dmesg outputs some error like "RmInitAdapter failed"
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