https://bugzilla.kernel.org/show_bug.cgi?id=204241
--- Comment #59 from Jaya Balan Aaron (bucket.size@gmail.com) --- Comment on attachment 288507 --> https://bugzilla.kernel.org/attachment.cgi?id=288507 arch linux 5.6 resolution with kernel params
Hi,
Using arch linux kernel 5.5zen, 5.6. Not sure if it's a solution but, interesting to note.
With 5.6, with kernel params 'amd_iommu=on iommu=pt', able to suspend/resume correctly 10/10 times. Without the params resume hanged with a blank and backlit screen 2/2 times.
With 5.5zen, even with the same kernel params, resume hanged 2/2 times.
Reason for the kernel params is that I was trying to set up gpu passthrough with kvm.
Suspend resumes immediately sometimes, but I think that's because of mis-configured, keyboard/mouse/usb wake triggers.