I also have a fairly new Toshiba L350D Laptop which has Windows Vista and Ubuntu Intrepid 8.10.
AMD Turion 64 x2 TL60 CPU ATI Radeon X1250 GPU, with December release ATI Drivers installed When plugged into AC Adapter fans come on at 80C and then as the laptop cools the fans behave appropriately. I think 80C is a bit high for the fan to start coming on but at least it seems to work more or less. On battery, however the fans do not come on unless they were on as the laptop started. If I startup the laptop from cold, the fans never come on and the system just gets hotter and hotter (until... I have no idea, I usually switch back to Windows when it gets above about 95C). If I run the system in Ubuntu until it gets hot then restart it, the BIOS turns the fans on and as Ubuntu runs the fans stay exactly as they were [i.e. on at the same speed] when Ubuntu started and so the computer does cool down, but that means that Ubuntu is not controlling the fans at all in that case, just leaving them as they were when the computer started. If I reduce the CPU Frequency back to 800Mhz it usually cools down without the fan but the system also slows down as a result [which obviously I don't always want]. I should add that under Windows the CPU temperature averages at around 48C when idle, rising to maximum 75-80C under full load. Only by covering the vent will it get hotter than 80C in Windows whereas in Ubuntu even when plugged into the AC Adapter it takes until it reaches 80C before the fan comes on. A possibly related point is that the wireless card also appears to be overheating as it works initially but then as it gets used it stops working. Resetting it using ifconfig <if> down, and then ifconfig <up> and then iwconfig and dhclient to set it often makes it work again but for less time each time I do it, hence the overheating suspicion. If I try resetting it immediately after it stopped workign it usually works for only a few seconds/minutes. I should note that I am always running from battery when using wireless because I have no internet in the building where I keep the charger. In case its relevant this model of Toshiba laptop has a Realtek RTL878B wireless chipset. -- Laptop is hotter with Ubuntu installed https://bugs.launchpad.net/bugs/107937 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
