http://bugzilla.kernel.org/show_bug.cgi?id=12994
--- Comment #3 from Maciej Piechotka <uzytkown...@gmail.com> 2009-04-01 21:49:19 --- (In reply to comment #1) > It would be nice to know what "overheating very much" means (i.e. the output > of > the thermal sensors), after all, that's highly subjective. According to ACPI reading - around 89 C. About 70-80 C in idle. With fan on full-speed (i.e. with manual controll) it tends to be 70 C. I2C readings (shouldn't it be blacklisted on thinkpad - it is 'pulled' by something in kernel so I have it even though I am awere of problems. Systems boots as far) however as much lower - 44 C in the idle with full-speed (a bit more with automatic mode). Anyway measuring 'by hand' the computer (the bottom surface and near the 'fan') indicates it is hotter then it used to be a few months ago and it is much cooler then in automatic mode. > For example, I > certainly like to keep my T43 a lot cooler than the firmware would make it if > left to its own devices, so I run it at fan level 7 any time I am going to go > hard on the CPU or GPU for more than 10 minutes. > As far as I observed reported speed have nothing in common with fan speed (measuring both noise and presure of wind). All measurement are made from the default level unless stated otherwise. > Anyway, in my experience, any IBM thinkpad that overheats (as in exceeds the > hardware safety margins) when at full number-crunching mode typically is > either > suffering a hardware problem, or operating at a _very_ hot place (above 35°C). > It's beginning of spring here ;) The temperature is normal and it stands near the middle of room with partially opened window. > Note that the hardware can, and will, operate at temperatures that are quite > uncomfortable for your lap. > It used to not. Anyway I tend to not use laptop as a... laptop. When I'm using it as a mobile PC I tend to find a table (especially since they are near power source) unless it is for so short it didnot have a time to heat. > If it is a hardware problem, the two most common ones are: the fan is not > being > able to blow enough air (due to dust), My room tends to be a dutie place (good for alergic and asthmatic ;) ) - however it changes depending on the changes of buildings neighbourhood. The computer was cleaned before reporting and it shown little or no effect. The fan could move without problem. > or the thermal interface between the > thermal sink assembly and the CPU and/or the GPU has cracked. Both are easy > to > fix. No visible hardware problems (i.e. after taking off the case) was seen. (In reply to comment #2) > I noticed now that the report implies we did better in earlier versions, so > regardless of whether that thinkpad needs some hardware loving care, we will > need to find out why we are not idling it right, if the submitter can confirm > that going back to an earlier Linux kernel makes his machine behave better. > > I doubt I can help with fixing any such issues, btw. It is not related to > thinkpad-acpi. I had no time to check on Windows and earlier version today (homework). Unless something extraordinary will happen tomorrow I will check. -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. You are watching the assignee of the bug. ------------------------------------------------------------------------------ _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
