From: bugzilla-daemon@bugzilla.kernel.org
To: cpufreq@vger.kernel.org
Subject: [Bug 58001] New: "ondemand" CPU governor never raises frequency (Dell XPS 12)
Date: Sat, 11 May 2013 09:32:23 +0000 (UTC) [thread overview]
Message-ID: <bug-58001-12968@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=58001
Summary: "ondemand" CPU governor never raises frequency (Dell
XPS 12)
Product: Power Management
Version: 2.5
Kernel Version: 3.8.11-200.fc18.x86_64
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: cpufreq
AssignedTo: cpufreq@vger.kernel.org
ReportedBy: jylefort@gmail.com
Regression: No
On a Dell XPS 12 (Intel Core i7-3537U), I experience exactly the same symptoms
as in bug #14771, except it has nothing to do with the power supply: I'm using
the stock power supply, and the problematic behavior is observed both on
battery and on AC power.
If I keep the default settings, the CPU frequency never goes beyond the 800 MHz
minimum, regardless of the CPU load.
If I decrease /sys/devices/system/cpu/cpufreq/ondemand/up_threshold from the
default value of 95 to 75, then the processors dynamically switch back and
forth from 800 MHz to 2 GHz according to CPU load.
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next reply other threads:[~2013-05-11 9:32 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-11 9:32 bugzilla-daemon [this message]
2013-05-12 15:32 ` [Bug 58001] New: "ondemand" CPU governor never raises frequency (Dell XPS 12) Viresh Kumar
2013-05-12 15:32 ` [Bug 58001] " bugzilla-daemon
2013-05-12 16:55 ` bugzilla-daemon
2013-05-13 3:48 ` Viresh Kumar
2013-05-13 3:48 ` bugzilla-daemon
2013-05-29 1:04 ` bugzilla-daemon
2013-06-07 14:49 ` bugzilla-daemon
2013-07-08 14:57 ` bugzilla-daemon
2013-07-08 15:01 ` bugzilla-daemon
2013-07-08 15:02 ` bugzilla-daemon
2013-07-09 1:28 ` bugzilla-daemon
2013-09-23 1:58 ` [Bug 58001] Raymond Auge
2013-09-23 8:30 ` [Bug 58001] "ondemand" CPU governor never raises frequency (Dell XPS 12) bugzilla-daemon
2013-10-14 11:08 ` bugzilla-daemon
2013-10-14 11:34 ` bugzilla-daemon
2013-10-14 12:23 ` bugzilla-daemon
2014-03-11 3:22 ` bugzilla-daemon
2014-03-11 3:26 ` bugzilla-daemon
2014-03-23 22:39 ` bugzilla-daemon
2014-03-23 22:45 ` bugzilla-daemon
2014-09-22 13:54 ` bugzilla-daemon
2014-09-24 22:18 ` bugzilla-daemon
2014-09-24 22:55 ` bugzilla-daemon
2014-09-24 22:56 ` bugzilla-daemon
2014-09-25 0:16 ` bugzilla-daemon
2014-09-25 0:59 ` bugzilla-daemon
2014-09-25 14:31 ` bugzilla-daemon
2014-10-23 8:03 ` bugzilla-daemon
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