-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 4/8/2013 2:59 PM, xlash911 wrote: > It is TM1 that I see in the logs.
The TM1 method actually does not change the CPU frequency, but rather forces it into and out of its idle state rapidly. Because of this, it is not nearly as effective as the TM2 method, which actually lowers the voltage and frequency, and can lower it in small steps to reach a point that does not overheat, but does not lose much performance. The TM1 method is either on or off. > Thanks for the detail explanation. The only thing it doesn't > explain, is why this only happens when using Ubuntu and not > Windows... I'll be fore to revert if it continues to crash. It just so happens that whatever the exact things Ubuntu is doing happens to cause a bit more heat, or heat more concentrated in time than whatever you are doing elsewhere. This sort of thing is quite common with overheating problems. For instance, if you check the message boards for any popular video game you will find plenty of people complaining that their system never overheats except when playing the game, and so it must be the game's fault. This is a logical fallacy. The game, or in this case, Ubuntu and whatever you are running on it may be a contributing factor, but the fault lies in the hardware as the hardware is supposed to prevent overheating no matter what the software does. > Ubuntu will allow systems temp to go up without stop? Shouldn't it > slow down frequency or anything to prevent overheating? As I said before, it is the hardware, not Ubuntu that throttles the frequency to prevent overheating. Ubuntu just notices when it happens and logs it so you can know that you have a hardware problem. > In addition, I see CPUX: Core temperature/speed above threshold, > cpu clock throttled, and right after (same time), it's "normal". > Then it crash. This seems to point to a reset in the throttling > mecanism... isn't? I see this Normally the throttling lifts when the temperature goes back down a bit. If it only drops one degree and the throttling disengages, then a lot of heat is generated on a very busy cpu, it can quickly spike the temperature again. If the thermal solution in your system cuts corners, that spike may hit the critical point faster than the throttling can re-engage. This is more likely to happen with TM1 than with TM2 due to the all-or-nothing approach of TM1. status invalid -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (MingW32) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJRYye0AAoJEJrBOlT6nu75CkIIAJpwDXuIopHsGJ+Nhgo/xsrf 0hEczFgj6yCSZDc8PWjkoTDK3Nmh4nJ5fabkdbOiuUp6NLlIKm2VrHfmsYLiK2c0 NmZqoif4hDkIZ2SHp25pIxrRnxc9sQgOW5JLIthp7uy2jarUMN+MmbchTHod3OaX +CvzPjtTg9n609T+MUakY1pXSHqz2Bb2OtbrE2AsglkFPGOfuyoq2oFkXU02AOKx eQwDjGGtDZc+Ik+kNoRtYRiTZwh/1DOHYnotn0tc6wZm/vmhGGDaQ9EqhX4BwPkN jJ3k9i3jLmoyV3l9BzM9CfX8rkHt/ssQ0VkmNiueNhWo6NXf6PvdBw60B+Pkzus= =FtUg -----END PGP SIGNATURE----- ** Changed in: ubuntu Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to 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/+bug/1163573/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
