From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 69365] New: vgaswitcheroo crashes when passing "OFF" to the "switch" file
Date: Sun, 15 Sep 2013 01:07:31 +0000 [thread overview]
Message-ID: <bug-69365-502@http.bugs.freedesktop.org/> (raw)
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https://bugs.freedesktop.org/show_bug.cgi?id=69365
Priority: medium
Bug ID: 69365
Assignee: dri-devel@lists.freedesktop.org
Summary: vgaswitcheroo crashes when passing "OFF" to the
"switch" file
Severity: normal
Classification: Unclassified
OS: Linux (All)
Reporter: lbdkmjdf@sharklasers.com
Hardware: Other
Status: NEW
Version: unspecified
Component: DRM/Radeon
Product: DRI
I have an HP laptop with dual AMD graphics cards (radeon HD 6520g + HD 6750M)
running Ubuntu 13.10 beta1, kernel 3.11.0-7-generic amd64.
This command
# echo "OFF" > /sys/kernel/debug/vgaswitcheroo/switch
throws a WARNING in the kernel logs, after which the folder
/sys/kernel/debug/vgaswitcheroo/ and the dGPU disappear (as noted in the logs)
(and power usage is notably lowered, guessing from the temperatures).
dmesg: http://pastebin.com/Pb7ELyqP , lines 1196+
Someone else in the #radeon channel also found this report:
http://lists.freedesktop.org/archives/dri-devel/2013-September/045157.html
which links to another old report from the same person.
Thanks.
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next reply other threads:[~2013-09-15 1:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-15 1:07 bugzilla-daemon [this message]
2013-09-17 3:44 ` [Bug 69365] vgaswitcheroo crashes when passing "OFF" to the "switch" file bugzilla-daemon
2013-11-25 2:41 ` bugzilla-daemon
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