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From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 65068] vgaswitcheroo doesn't deal with powered off dGPU on resume
Date: Sun, 09 Jun 2013 04:05:56 +0000	[thread overview]
Message-ID: <bug-65068-502-UVMzKht4yW@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-65068-502@http.bugs.freedesktop.org/>


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https://bugs.freedesktop.org/show_bug.cgi?id=65068

--- Comment #9 from Austin Lund <austin.lund@gmail.com> ---
Created attachment 80547
  --> https://bugs.freedesktop.org/attachment.cgi?id=80547&action=edit
pci_restore_config_dword debugging when resuming with dGPU off at suspend

It is log output like this that worries my about the 0xff reads from the pci
config space.

I set this in dynamic_debug:

drivers/pci/pci.c:964 [pci]pci_restore_config_dword =p "restoring config space
at offset %#x (was %#x, writing %#x)\012"

Then it gives this 0xff writing to the pci address space on restore when using
the integrated gpu.  Surely this cannot help.  My guess is that the hardware
should be removed from the kernel when the power is turned off.  But that's
just a hunch.

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  parent reply	other threads:[~2013-06-09  4:06 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-28  7:59 [Bug 65068] New: AtomBIOS stuck after suspend/resume cycle whilst GPU turned off bugzilla-daemon
2013-05-29  4:39 ` [Bug 65068] vgaswitcheroo doesn't deal with powered off dGPU on resume bugzilla-daemon
2013-05-29 10:03 ` bugzilla-daemon
2013-05-29 13:29 ` bugzilla-daemon
2013-05-31 23:57 ` bugzilla-daemon
2013-06-01 20:27 ` bugzilla-daemon
2013-06-03  1:39 ` bugzilla-daemon
2013-06-03 13:18 ` bugzilla-daemon
2013-06-03 13:22 ` bugzilla-daemon
2013-06-09  4:05 ` bugzilla-daemon [this message]
2019-11-19  8:33 ` bugzilla-daemon

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