** Also affects: acpi (Ubuntu) Importance: Undecided Status: New ** Changed in: acpi (Ubuntu) Status: New => Confirmed
** Description changed: - Toshiba Satellite P100 PSP-A3C laptop, Nvidia GeForce Go 7600, running - Karmic 2.6.31-15, Nvidia proprietary driver 185. + ******* Problem ********* + Toshiba Satellite P100 PSP-A3C laptop, Nvidia GeForce Go 7600, running Karmic 2.6.31-15, Nvidia proprietary driver 185. GNOME-Sensors applet reports CPU stable at about 60 C, GPU climbs slowly up to about 90 C, then the system shuts down. On 9.04, I had the same problem, but I was able to load a custom DSDT, after which the fan ran properly, and the system stayed cool, GPU around 65 C. Also stays cool under Windows XP. I understand that it is not possible to load a custom DSDT under karmic, so I need another solution. + + ******** Possible Fix ********** + After some more hacking in DSDT, Yann found that fan control is located in ACPI EC (embedded controller) address space : VTMP acpi byte in acpi EC bit field, at offest 0x5E. + + Yann found some similar concerns on some acer laptops (having the same + WMI related acpi methods, located in device AMW0), and with a perl + script that Yann was able to modify in order to setup a constant fan + speed. That perl script is attached to this report. -- Nvidia GPU overheating on Toshiba P100 https://bugs.launchpad.net/bugs/484875 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs