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 at lists.freedesktop.org
Reporter: rogutes+freedesktop at 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.
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