Public bug reported: I installed Ubuntu 12.10 on my work computer, a HP ProBook 6450b. When I use many applications, and a virtual machine, it uses a lot of CPU.
Under such circumstances, my CPU starts overheating (that's my guess), and it can lead to an abrupt shutdown of my PC, without any notice. With lm-sensors, I notice my CPU temperature gets as high as 105 °C, which is the critical limit. However, I can't see my CPU Fan speed, although I can hear it run at high seed. $ sensors acpitz-virtual-0 Adapter: Virtual device temp1: +48.0°C (crit = +127.0°C) temp2: +0.0°C (crit = +128.0°C) temp3: +0.0°C (crit = +128.0°C) temp4: +50.0°C (crit = +127.0°C) temp5: +0.0°C (crit = +128.0°C) temp6: +30.3°C (crit = +128.0°C) temp7: +0.0°C (crit = +128.0°C) temp8: +69.0°C (crit = +128.0°C) temp9: +73.0°C (crit = +128.0°C) temp10: +59.0°C (crit = +128.0°C) coretemp-isa-0000 Adapter: ISA adapter Core 0: +72.0°C (high = +95.0°C, crit = +105.0°C) Core 2: +72.0°C (high = +95.0°C, crit = +105.0°C) I've captured my latest syslogs around last crash : Apr 2 15:26:29 HP-ProBook-6450b kernel: [18766.765333] CPU1: Core temperature above threshold, cpu clock throttled (total events = 22) Apr 2 15:26:29 HP-ProBook-6450b kernel: [18766.765335] CPU0: Core temperature above threshold, cpu clock throttled (total events = 22) Apr 2 15:26:29 HP-ProBook-6450b kernel: [18766.766364] CPU0: Core temperature/speed normal Apr 2 15:26:29 HP-ProBook-6450b kernel: [18766.766365] CPU1: Core temperature/speed normal Apr 2 15:26:50 HP-ProBook-6450b avahi-daemon[958]: Invalid response packet from host 172.21.54.19. Apr 2 15:26:55 HP-ProBook-6450b avahi-daemon[958]: Invalid response packet from host fe80::84ac:8480:9bea:773d. Apr 2 15:28:37 HP-ProBook-6450b kernel: imklog 5.8.6, log source = /proc/kmsg started. Apr 2 15:28:37 HP-ProBook-6450b rsyslogd: [origin software="rsyslogd" swVersion="5.8.6" x-pid="938" x-info="http://www.rsyslog.com";] start Apr 2 15:28:37 HP-ProBook-6450b rsyslogd: rsyslogd's groupid changed to 103 Apr 2 15:28:37 HP-ProBook-6450b rsyslogd: rsyslogd's userid changed to 101 Apr 2 15:28:37 HP-ProBook-6450b rsyslogd-2039: Could not open output pipe '/dev/xconsole' [try http://www.rsyslog.com/e/2039 ] Apr 2 15:28:37 HP-ProBook-6450b kernel: [ 0.000000] Initializing cgroup subsys cpuset CPU speed changes between 1.2 GHZ and 2.4 GHz depending on load. I'm also using the following GPU driver : $ lshw -c video WARNING: you should run this program as super-user. *-display description: VGA compatible controller product: Core Processor Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 02 width: 64 bits clock: 33MHz capabilities: vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:45 memory:d0000000-d03fffff memory:c0000000-cfffffff ioport:4050(size=8) ** Affects: lm-sensors (Ubuntu) Importance: Undecided Status: New ** Tags: cpu overheat shutdown ** Attachment added: "cat /proc/cpuinfo" https://bugs.launchpad.net/bugs/1163573/+attachment/3616088/+files/cpuinfo -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lm-sensors in Ubuntu. https://bugs.launchpad.net/bugs/1163573 Title: Ubuntu 12.10 overheats my laptop until it shutdowns without notice To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lm-sensors/+bug/1163573/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
