Why is my laptop so freaking hot?

HP Compaq nc8430, Core 2 Duo T7200 2.0GHz. Fedora Core 12 x86_64, kernel 2.6.32.19-163.fc12.x86_64 (just updated via yum).

At idle, with nothing running in the foreground, the CPU is around 70-72° Celsius, and the other sensors are 80°+. Why is this? It seems like every time I run yum update the machine gets hotter. I wonder if there’s any way to figure out what’s causing this. In any case, it’s pretty annoying. It’s uncomfortable putting the thing on my lap for any length of time.

Notice the temperatures at the top. The first two are Core0 and Core1, the other 2 are other sensors. The CPU is running at 1.0 GHz due to SpeedStep and the temp is still 70°C.

Edit: I forgot I’ve been logging temperature via sensord. I just turned the computer on after having it off all night and within 10 minutes the CPU is back up to > 60°C.

Aug 26 00:01:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 00:06:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 00:11:34 ehoffman sensord:   Core 0: 66.0 C
Aug 26 00:16:34 ehoffman sensord:   Core 0: 66.0 C
Aug 26 00:21:34 ehoffman sensord:   Core 0: 66.0 C
Aug 26 00:26:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 00:31:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 00:36:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 00:41:34 ehoffman sensord:   Core 0: 66.0 C
Aug 26 00:46:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 00:51:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 00:56:34 ehoffman sensord:   Core 0: 66.0 C
Aug 26 01:01:34 ehoffman sensord:   Core 0: 66.0 C
Aug 26 01:06:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:11:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:16:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:21:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:26:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:31:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:36:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:41:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:46:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:51:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 01:56:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 02:01:34 ehoffman sensord:   Core 0: 64.0 C
Aug 26 02:06:34 ehoffman sensord:   Core 0: 64.0 C
Aug 26 02:11:34 ehoffman sensord:   Core 0: 64.0 C
Aug 26 02:16:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 02:21:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 02:26:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 02:31:34 ehoffman sensord:   Core 0: 65.0 C
Aug 26 02:36:35 ehoffman sensord:   Core 0: 64.0 C
Aug 26 02:41:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 02:46:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 02:51:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 02:56:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:01:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:06:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:11:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:16:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:21:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:26:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:31:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:36:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:41:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:46:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:51:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 03:56:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 04:01:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 04:06:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 04:11:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 04:16:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 04:21:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 04:26:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 04:31:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 04:36:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 04:41:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 04:46:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 04:51:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 04:56:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 05:01:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 05:06:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 05:11:35 ehoffman sensord:   Core 0: 66.0 C
Aug 26 05:16:35 ehoffman sensord:   Core 0: 65.0 C
Aug 26 05:21:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 05:26:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 05:31:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 05:36:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 05:41:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 05:46:36 ehoffman sensord:   Core 0: 66.0 C
Aug 26 05:51:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 05:56:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:01:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:06:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:11:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:16:36 ehoffman sensord:   Core 0: 66.0 C
Aug 26 06:21:36 ehoffman sensord:   Core 0: 66.0 C
Aug 26 06:26:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:31:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:36:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:41:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:46:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:51:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 06:56:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 07:01:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 07:06:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 07:11:36 ehoffman sensord:   Core 0: 65.0 C
Aug 26 07:16:36 ehoffman sensord:   Core 0: 64.0 C
Aug 26 07:21:36 ehoffman sensord:   Core 0: 64.0 C
Aug 26 07:26:36 ehoffman sensord:   Core 0: 64.0 C
Aug 26 07:31:36 ehoffman sensord:   Core 0: 63.0 C
Aug 26 07:36:36 ehoffman sensord:   Core 0: 63.0 C
Aug 26 07:41:36 ehoffman sensord:   Core 0: 63.0 C
Aug 26 07:46:36 ehoffman sensord:   Core 0: 64.0 C
Aug 26 07:51:36 ehoffman sensord:   Core 0: 64.0 C
Aug 26 07:56:36 ehoffman sensord:   Core 0: 64.0 C
Aug 26 08:01:36 ehoffman sensord:   Core 0: 64.0 C
Aug 26 08:06:37 ehoffman sensord:   Core 0: 64.0 C
Aug 26 08:11:37 ehoffman sensord:   Core 0: 64.0 C
Aug 26 08:16:37 ehoffman sensord:   Core 0: 64.0 C
Aug 26 08:21:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 08:26:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 08:31:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 08:36:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 08:41:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 08:46:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 08:51:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 08:56:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 09:01:37 ehoffman sensord:   Core 0: 65.0 C
Aug 26 09:06:37 ehoffman sensord:   Core 0: 66.0 C
Aug 26 09:11:37 ehoffman sensord:   Core 0: 66.0 C
Aug 26 09:16:37 ehoffman sensord:   Core 0: 78.0 C
Aug 26 09:21:37 ehoffman sensord:   Core 0: 83.0 C
Aug 26 09:26:37 ehoffman sensord:   Core 0: 70.0 C
Aug 26 09:31:37 ehoffman sensord:   Core 0: 72.0 C
Aug 26 09:36:37 ehoffman sensord:   Core 0: 74.0 C
Aug 26 09:41:37 ehoffman sensord:   Core 0: 72.0 C
Aug 26 09:46:38 ehoffman sensord:   Core 0: 71.0 C
Aug 26 09:51:38 ehoffman sensord:   Core 0: 71.0 C
Aug 26 09:56:38 ehoffman sensord:   Core 0: 72.0 C
Aug 26 10:01:38 ehoffman sensord:   Core 0: 73.0 C
Aug 26 10:06:38 ehoffman sensord:   Core 0: 71.0 C
Aug 26 10:11:38 ehoffman sensord:   Core 0: 78.0 C
Aug 26 10:16:38 ehoffman sensord:   Core 0: 71.0 C
Aug 26 10:21:38 ehoffman sensord:   Core 0: 72.0 C
Aug 26 10:26:38 ehoffman sensord:   Core 0: 72.0 C
Aug 26 10:31:38 ehoffman sensord:   Core 0: 73.0 C
Aug 26 10:36:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 10:41:38 ehoffman sensord:   Core 0: 76.0 C
Aug 26 10:46:38 ehoffman sensord:   Core 0: 73.0 C
Aug 26 10:51:38 ehoffman sensord:   Core 0: 73.0 C
Aug 26 10:56:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 11:01:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 11:06:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 11:11:38 ehoffman sensord:   Core 0: 75.0 C
Aug 26 11:16:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 11:21:38 ehoffman sensord:   Core 0: 75.0 C
Aug 26 11:26:38 ehoffman sensord:   Core 0: 75.0 C
Aug 26 11:31:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 11:36:38 ehoffman sensord:   Core 0: 75.0 C
Aug 26 11:41:38 ehoffman sensord:   Core 0: 73.0 C
Aug 26 11:46:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 11:51:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 11:56:38 ehoffman sensord:   Core 0: 73.0 C
Aug 26 12:01:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 12:06:38 ehoffman sensord:   Core 0: 74.0 C
Aug 26 12:11:38 ehoffman sensord:   Core 0: 73.0 C
Aug 26 12:16:38 ehoffman sensord:   Core 0: 86.0 C
Aug 26 12:21:38 ehoffman sensord:   Core 0: 77.0 C
Aug 26 12:26:39 ehoffman sensord:   Core 0: 74.0 C
Aug 26 12:31:39 ehoffman sensord:   Core 0: 73.0 C
Aug 26 12:36:39 ehoffman sensord:   Core 0: 77.0 C
Aug 26 12:41:39 ehoffman sensord:   Core 0: 79.0 C
Aug 26 12:46:39 ehoffman sensord:   Core 0: 96.0 C
Aug 26 12:51:39 ehoffman sensord:   Core 0: 95.0 C
Aug 26 12:56:39 ehoffman sensord:   Core 0: 75.0 C
Aug 26 13:01:39 ehoffman sensord:   Core 0: 94.0 C
Aug 26 13:06:39 ehoffman sensord:   Core 0: 73.0 C
Aug 26 13:11:39 ehoffman sensord:   Core 0: 94.0 C
Aug 26 13:16:39 ehoffman sensord:   Core 0: 94.0 C
Aug 26 13:21:39 ehoffman sensord:   Core 0: 77.0 C
Aug 26 13:26:39 ehoffman sensord:   Core 0: 94.0 C
Aug 26 13:31:39 ehoffman sensord:   Core 0: 94.0 C
Aug 26 13:36:39 ehoffman sensord:   Core 0: 95.0 C
Aug 26 13:42:18 ehoffman sensord:   Core 0: 80.0 C
Aug 26 13:47:18 ehoffman sensord:   Core 0: 72.0 C
Aug 26 13:52:18 ehoffman sensord:   Core 0: 70.0 C
Aug 26 13:57:18 ehoffman sensord:   Core 0: 71.0 C
Aug 26 14:02:18 ehoffman sensord:   Core 0: 69.0 C
Aug 26 14:07:18 ehoffman sensord:   Core 0: 77.0 C
Aug 26 14:12:18 ehoffman sensord:   Core 0: 78.0 C
Aug 26 14:17:18 ehoffman sensord:   Core 0: 72.0 C
Aug 26 14:22:18 ehoffman sensord:   Core 0: 70.0 C
Aug 26 14:27:18 ehoffman sensord:   Core 0: 70.0 C
Aug 26 14:32:18 ehoffman sensord:   Core 0: 72.0 C
Aug 26 14:37:18 ehoffman sensord:   Core 0: 71.0 C
Aug 26 14:42:18 ehoffman sensord:   Core 0: 70.0 C
Aug 26 14:47:18 ehoffman sensord:   Core 0: 71.0 C
Aug 26 14:52:18 ehoffman sensord:   Core 0: 70.0 C
Aug 26 14:57:18 ehoffman sensord:   Core 0: 69.0 C
Aug 26 15:02:18 ehoffman sensord:   Core 0: 69.0 C
Aug 26 15:07:18 ehoffman sensord:   Core 0: 69.0 C
Aug 26 15:12:18 ehoffman sensord:   Core 0: 70.0 C
Aug 26 15:17:18 ehoffman sensord:   Core 0: 70.0 C
Aug 26 15:22:18 ehoffman sensord:   Core 0: 70.0 C
Aug 26 15:27:18 ehoffman sensord:   Core 0: 69.0 C
Aug 26 15:32:19 ehoffman sensord:   Core 0: 69.0 C
Aug 26 15:37:19 ehoffman sensord:   Core 0: 68.0 C
Aug 26 15:42:19 ehoffman sensord:   Core 0: 70.0 C
Aug 26 15:47:19 ehoffman sensord:   Core 0: 69.0 C
Aug 26 15:52:19 ehoffman sensord:   Core 0: 70.0 C
Aug 26 15:57:19 ehoffman sensord:   Core 0: 70.0 C
Aug 26 16:02:19 ehoffman sensord:   Core 0: 70.0 C
Aug 26 16:07:19 ehoffman sensord:   Core 0: 70.0 C
Aug 26 16:12:19 ehoffman sensord:   Core 0: 71.0 C
Aug 26 16:17:19 ehoffman sensord:   Core 0: 70.0 C
Aug 26 16:22:19 ehoffman sensord:   Core 0: 70.0 C
Aug 26 16:27:19 ehoffman sensord:   Core 0: 71.0 C
Aug 26 16:32:19 ehoffman sensord:   Core 0: 72.0 C
Aug 26 16:37:19 ehoffman sensord:   Core 0: 71.0 C
Aug 26 16:42:19 ehoffman sensord:   Core 0: 73.0 C
Aug 26 16:47:19 ehoffman sensord:   Core 0: 73.0 C
Aug 26 16:52:19 ehoffman sensord:   Core 0: 72.0 C
Aug 26 16:57:19 ehoffman sensord:   Core 0: 75.0 C
Aug 26 17:02:19 ehoffman sensord:   Core 0: 71.0 C
Aug 26 17:07:19 ehoffman sensord:   Core 0: 71.0 C
Aug 27 08:23:10 ehoffman sensord:   Core 0: 43.0 C
Aug 27 08:28:10 ehoffman sensord:   Core 0: 55.0 C
Aug 27 08:33:09 ehoffman sensord:   Core 0: 62.0 C

Everything works on my laptop except Bluetooth

This is pretty weird. Bluetooth worked fine under Win XP. The computer is an HP/Compaq nc8430. When I go to the Bluetooth control panel I get “Your computer does not have any Bluetooth adapters plugged in.” The weird thing is, sometimes I’ll see the bluetooth logo in the taskbar at the top, but then when I look again it’s gone and I have no idea how to get it back. When I booted it up this morning I noticed the icon was there so I ran some of the debugging tools for Bluetooth and checked dmesg and this time at least it looks like at least there’s proof that Linux CAN see the Bluetooth adapter, I just don’t get why it then stops recognizing it after just a minute or two, and a reboot doesn’t even consistently bring it back.

Continue reading “Everything works on my laptop except Bluetooth”

I put Fedora Core 11 on my work laptop

My work laptop, which I got around the end of 2006, was starting to run like crap. Pretty sure it started around the time I put antivirus on it, which reinforces my theory that antivirus is a virus itself. Anyway, being bored with Windows XP and having already played with Windows 7 at home, I decided to install Linux. The last time I tried Linux desktop was around RedHat 7.3, which was a long time ago… pre-Fedora even. I’m pretty happy with CentOS on the server side and was set to try CentOS 5.3 on my laptop when someone suggested I go with FC due to more bleeding-edge driver support. Even though the hardware is pretty old at this point I figured it was worth a shot.

Generally everything works pretty well. Everything pretty much works out of the box – I had dual screens up at native resolution, it even recognized my phone as a camera when I plugged it in to charge it. Best of all, I was able to resize the NTFS partition (rather than blowing it away) so I can still boot back to XP when the need arises.

There are 2 problems I’ve had so far though:

  • the computer now hovers between 76 and 85 degrees Celsius, whereas under Win XP it generally peaked around 68 C. I tried underclocking the CPU down to 250 MHz but the problem persisted.
  • The Java plugin for Firefox … wtf? How can this not work? I downloaded Sun’s JDK and symlinked the libjavaplugin_whatever into /usr/lib64/mozilla/whatever/ and that didn’t work. Then I tried “yum install java-plugin” or something like that and that installed some OpenJava-ish plugin which looked like it was going to work, but when I logged into the Raritan KVM and clicked “Connect” it wouldn’t work. I booted up Win XP in a VM and Firefox with Java works fine. Really annoying and dumb.

I’ll probably try Ubuntu tomorrow as several people suggested it runs cooler than Fedora. If that fails then I guess I’ll go to Win7 after all. I also want an SSD for my work laptop now… my Windows VM seems to spent eternity spinning my crappy 5400 rpm drive. Plox.