For me, the 2.6.28 kernel does trigger it. Running 2.6.27-14 works fine. (Actually, subjectivly 2.6.27-14 is not perfect either, but I haven't managed yet to kill it via burnK7, while 2.6.28 takes less than 60s of 2xburnK7 (dualcore) to shutdown)
To summarize: Hardy/Intrepid ran perfect on the hardware (temperature-wise) 2.6.27-14 feels slightly to loud on fan noise, but that's strictly subjective. The scripts that I wrote to burn and log have been not able to force a thermal shutdown for over 15 minutes. 2.6.28 can be easily crashed by So it's really only the kernel, or something in userland that depends upon the currently running kernel. Demonstrated via logs/scripts that I posted to my bug report. Thermal shutdown happens after less than 60 seconds. So just booting a different kernel makes my laptop go into thermal shutdown, so it is a kernel or kernel-specific userland problem. Andreas Am Donnerstag, den 25.06.2009, 08:31 +0000 schrieb Andy Whitcroft: > @Michal Pěnka -- yes you can just download the appropriate kernel for > you i386/amd64 and just install those with dpkg. They should install in > parallel and you can simply select them in the main grub menu. > > @all -- the key desire here is to isolate exactly when this issue > appeared. There seems to be enough people indicating they have an issue > to make it likely that later kernels are triggering this behaviour. As > generally the kernel does not get involved in fan control directly it > must be something else triggering the change. As there are some 20k > changes in every mainline release and normally at least 2 mainline > releases in every Ubuntu release, there is a huge amount of change in > each kernel. This huge change makes it hard to pinpoint such a > behaviour. The normal way to do this is to identify kernel versions > which exhibit the behaviour and those which do not and bisect the gap to > narrow down the the exact mainline release produced the change, and then > within that release. This is the source of my requests for testing of > specific kernel versions. > -- Ubuntu 9.04 laptop overheat and shutdown https://bugs.launchpad.net/bugs/370173 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
