Laptop: IBM T41p
Ubuntu: Dapper works perfectly/Edgy gives Critical Temperature Reached messages in kern.log and halt with T ~= 94 C
Upgrade procedure from Dapper: /home kept, format and install of /
Good point: acpi kicks in and protect my hardware!
Bad point: CPU freq + throttling would be better.
If I do a dmesg | grep -i acpi I have the following strange stuff:
ACPI: Looking for DSDT ... not found!
So I suppose that the DSDT shipped with Edgy is broken but was ok with Dapper. Where is it possible to get the Dapper DSDT? I could test it and see if it is effectively the problem.
I am attaching the dmesg I have. My kernel etc... are all out of the box from Edgy.
I have the same problem:
Laptop: IBM T41p
Ubuntu: Dapper works perfectly/Edgy gives Critical Temperature Reached messages in kern.log and halt with T ~= 94 C
Upgrade procedure from Dapper: /home kept, format and install of /
Good point: acpi kicks in and protect my hardware!
Bad point: CPU freq + throttling would be better.
Here are some infos about the system:
loa@cargo:~ $ cat /proc/acpi/ thermal_ zone/THM0/ trip_points
critical (S5): 93 C
passive: 89 C: tc1=8 tc2=5 tsp=600 devices=0xdff4d338
loa@cargo:~ $ cat /proc/acpi/ thermal_ zone/THM0/ polling_ frequency
<polling disabled>
- This is strange, I echo 2 into it and got:
# echo 2 > /proc/acpi/ thermal_ zone/THM0/ polling_ frequency thermal_ zone/THM0/ polling_ frequency
# cat /proc/acpi/
polling frequency: 2 seconds
# cat /proc/acpi/ processor/ CPU/info
processor id: 0
acpi id: 1
bus mastering control: yes
power management: yes
throttling control: yes
limit interface: yes
If I do a dmesg | grep -i acpi I have the following strange stuff:
ACPI: Looking for DSDT ... not found!
So I suppose that the DSDT shipped with Edgy is broken but was ok with Dapper. Where is it possible to get the Dapper DSDT? I could test it and see if it is effectively the problem.
I am attaching the dmesg I have. My kernel etc... are all out of the box from Edgy.