https://bugzilla.kernel.org/show_bug.cgi?id=117931
Bug ID: 117931 Summary: Black screen after resume from hibernate on HP Pavilion dv7 with 2 AMD GPUs Product: Drivers Version: 2.5 Kernel Version: 4.6-rc5 (mainline), 3.14.53, 4.4.7, 4.4.8 (Fedora) Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: eugene.shatokhin@rosalab.ru Regression: No
Created attachment 215701 --> https://bugzilla.kernel.org/attachment.cgi?id=215701&action=edit The system log from Fedora 23 after resume. drm.debug=0x1e was set, just in case
When the laptop resumes from hibernate, there is no output on the screen. In some cases, I can connect to the machine via SSH after that, so I can see that the system does not crash. Looks like it is just graphics that is not turned on.
The system uses 'radeon' driver.
Laptop: HP Pavilion dv7 with A8-3530MX APU Two graphics cards: * Radeon HD 7690M (pci:1002-6741-103c-1860) * Radeon HD 6620G (pci:1002-9641-103c-1860) More hardware info for that system: http://linux-hardware.org/index.php?probe=4c12fda921
OS, kernel: I tried both ROSA R7 x86_64 with kernels 4.6-rc5 (mainline), 4.4.7, 4.1.22 and Fedora 23 with kernel 4.4.8-300.fc23.x86_64. The problem showed up with each of these.
The log below is from Fedora where I was able to connect to the machine via SSH after the problem happened.
Resuming from suspend-to-RAM works fine though.
I also tried kernel 4.1.x with the proprietary fglrx driver (v.15.201.1151) instead of 'radeon' - the graphics worked OK after resume from hibernate this time.