https://bugs.freedesktop.org/show_bug.cgi?id=91707
Bug ID: 91707 Summary: Hibernation doesn't work with AMD Radeon R7 265 Product: DRI Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/Radeon Assignee: dri-devel@lists.freedesktop.org Reporter: rogutes+freedesktop@gmail.com
Created attachment 117828 --> https://bugs.freedesktop.org/attachment.cgi?id=117828&action=edit dmesg output
Hibernation works perfectly when using the integrated Intel GPU, but it only works once when using the discrete AMD Radeon R7 265.
I am testing different GPUs by changing the primary GPU in BIOS.
When trying to hibernate for the second time, I see one of 2 outcomes: 1. Display powers off, but the system stays on and stops responding to ICMP pings and sysrq; after reset the system boots afresh and fsck is run. 2. System powers off, but doesn't resume on next boot: boots afresh and fsck is run.
More observations: * Suspend to RAM works every time. * Hibernation works every time as long as X has not been started. * I am running Arch Linux, swap is on an SSD and not encrypted. I usually start hibernation with `systemctl hibernate`, but writing to /sys/power/state has the same effect.
I have no idea how to debug this issue, but would be happy to do it with your help.