https://bugzilla.novell.com/show_bug.cgi?id=648719 https://bugzilla.novell.com/show_bug.cgi?id=648719#c0 Summary: Kernel upgrade causes laptop fans to stop working, CPU overheats Classification: openSUSE Product: openSUSE 11.1 Version: Final Platform: x86-64 OS/Version: openSUSE 11.1 Status: NEW Severity: Major Priority: P5 - None Component: Kernel AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: munguanaweza@netzero.net QAContact: qa@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.10) Gecko/20100914 SUSE/3.6.10-0.3.1 Firefox/3.6.10 When I upgrade from kernel 2.6.27.45-0.1.1-x86_64 to the latest kernel 2.6.27.48-0.3.1-x86-64 the laptop cooling fans don't work and the cpu overheats. Before the upgrade the fan came on at 55C and ran constantly after that, keeping the CPU temperature at about 40C. After the upgrade I fell asleep while listening to a streaming broadcast. I found the CPU temperature to be 93C two hours later when I woke up and found the cooling fans weren't running. I found the temperature from ~cat /proc/acpi/thermal_zone/TZ0/temperature. I had experienced this problem several times as I have installed Opensuse 11.1 and upgraded the software. I was finally able to determine that it is the kernel upgrade that is causing the problem. My laptop is a Toshiba U505-S2950 with a dual Pentium t4300 CPU. Reproducible: Always Steps to Reproduce: 1.Upgrade the kernel to version 2.6.27.48-0.3.1-x86-64 2. 3. Actual Results: Cooling fans don't activate. Expected Results: Cooling fans should keep the CPU temperature at around 40C -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.