https://bugs.freedesktop.org/show_bug.cgi?id=102648
Bug ID: 102648
Summary: unable to use nvidia gpu after suspend
Product: xorg
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: critical
Priority: medium
Component: Driver/nouveau
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
Created attachment 134145
--> https://bugs.freedesktop.org/attachment.cgi?id=134145&action=edit
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
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