[Bug 117931] New: Black screen after resume from hibernate on HP Pavilion dv7 with 2 AMD GPUs - bugzilla-daemon

From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 117931] New: Black screen after resume from hibernate on HP Pavilion dv7 with 2 AMD GPUs
Date: Tue, 10 May 2016 09:04:28 +0000	[thread overview]
Message-ID: <bug-117931-2300@https.bugzilla.kernel.org/> (raw)

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.

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