The currently under-development 3.13 upstream kernel enables DPM by default (without needing the radeon.dpm=1 boot parameter I mentioned above) for Radeon HD 4000 through Radeon HD 7000 series graphics processors but with some specific ASICs being excluded.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/661593 Title: Samsung R522 Intel Core 2 Duo 2.0 with ATI 4560 overheats running Maverick or Natty Live CD desktop 64 Status in The Linux Kernel: Incomplete Status in “linux” package in Ubuntu: Fix Released Bug description: Hi, I tried to install Maverick 10.10 from Live CD 64 bit on my Samsung R522. During installation the notebook overheats and emergency shuts down. I managed to install let the notebook cool down and choosed direct installation without the "try out" option. But the running system still overheated! Even in idle (cpu usage around 4-10%) the processors temp incresed after a period of time to emergency shut down at 90 degrees Celsius! I checked all, the processor is idle and running on low frequency, fans are running. The idle temp was in the upper 60 degrees! Same time on Windows Vista everything was going well, idle temp around upper 30 degrees. I tried out to install the fglrx graphics driver from repository and now the idle temp is in the 50th. While working around 70-80. But still much hotter than Windows while having a lower CPU usage than Windows. Why it is still so hot? It also seems that the fans are running at lower speed at given temperature than in Windows. Could this be the problem? Running in the 80th reduces my processors lifetime. The standard driver (without installing fglrx) lets the system overheat and could damage the notebook. Even at full speed it should not overheat! To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/661593/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
