https://bugs.freedesktop.org/show_bug.cgi?id=35988
Summary: Power management not working on ATI M92 LP [Mobility Radeon HD 4300] Product: DRI Version: unspecified Platform: x86 (IA32) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/Radeon AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: s.j.turner@uqconnect.net
A launchpad user reports "If I deactivate the ATI restricted driver, and then restart my computer, GPU temp is between 70-80 degrees Celsius instead of the usual 40-50, without doing anything, no application running, no effects."
lspci -nn | grep VGA 01:00.0 VGA compatible controller [0300]: ATI Technologies Inc M92 LP [Mobility Radeon HD 4300 Series] [1002:9552]
MachineType: Hewlett-Packard HP ProBook 4710s
This was originally reported on Ubuntu 9.10 "Karmic Koala" with a 2.6.31-based kernel (which of course does not have power management support), but persists on an Ubuntu 11.04 "Natty Narwhal" pre-release with a 2.6.38-based kernel.
The problem is that this user reports "I've tried setting the power (management) profile settings and dynpm, but nothing has changed, still running above 70 degrees Celsius."