From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 65068] vgaswitcheroo doesn't deal with powered off dGPU on resume Date: Sun, 09 Jun 2013 04:05:56 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1487427115==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id CDF5CE5F27 for ; Sat, 8 Jun 2013 21:06:00 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1487427115== Content-Type: multipart/alternative; boundary="1370750756.4d04DCa1.3892"; charset="us-ascii" --1370750756.4d04DCa1.3892 Date: Sun, 9 Jun 2013 04:05:56 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=65068 --- Comment #9 from Austin Lund --- 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. -- You are receiving this mail because: You are the assignee for the bug. --1370750756.4d04DCa1.3892 Date: Sun, 9 Jun 2013 04:05:56 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 9 on bug 65068 from 
Created attachment 80547 [details]
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.

You are receiving this mail because:
  • You are the assignee for the bug.
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