Ubuntu
linux-source-2.6.17 package

  1. Bug #77370
  2. Comment #44

Comment 44 for bug 77370

Revision history for this message
pawel (maijstral) wrote :

$ uname -r
2.6.28-13-generic
HP Compaq 6735b

I've found interesting thing. After restart with original 72-acpi-pain.sh and 99laptop-mode files i've got <polling disabled>.

Right after start-up (fan is almost silent)
<setting not supported>
<polling disabled>
state: active[2]
temperature: 68 C
critical (S5): 105 C
passive: 100 C: tc1=1 tc2=2 tsp=100 devices=CPU0 CPU1
active[0]: 90 C: devices=FAN0
active[1]: 80 C: devices=FAN1
active[2]: 55 C: devices=FAN2
active[3]: 45 C: devices=FAN3
active[4]: 35 C: devices=FAN4

After stand-by (fan spin up)
<setting not supported>
<polling disabled>
state: active[2]
temperature: 67 C
critical (S5): 105 C
passive: 100 C: tc1=1 tc2=2 tsp=100 devices=CPU0 CPU1
active[0]: 90 C: devices=FAN0
active[1]: 80 C: devices=FAN1
active[2]: 55 C: devices=FAN2
active[3]: 45 C: devices=FAN3
active[4]: 35 C: devices=FAN4

After few minutes (fan is still spin up)
<setting not supported>
<polling disabled>
state: active[2]
temperature: 48 C
critical (S5): 105 C
passive: 100 C: tc1=1 tc2=2 tsp=100 devices=CPU0 CPU1
active[0]: 90 C: devices=FAN0
active[1]: 80 C: devices=FAN1
active[2]: 55 C: devices=FAN2
active[3]: 45 C: devices=FAN3
active[4]: 35 C: devices=FAN4

Next i've added
echo -n 3 > /proc/acpi/thermal_zone/CPUZ/polling_frequency
to /etc/pm/sleep.d/99laptop-mode,

After next stand-by (fan spin up)
<setting not supported>
polling frequency: 3 seconds
state: active[2]
temperature: 55 C
critical (S5): 105 C
passive: 100 C: tc1=1 tc2=2 tsp=100 devices=CPU0 CPU1
active[0]: 90 C: devices=FAN0
active[1]: 80 C: devices=FAN1
active[2]: 55 C: devices=FAN2
active[3]: 45 C: devices=FAN3
active[4]: 35 C: devices=FAN4

But a few minuts later i've got this report (and fan is silent)
<setting not supported>
polling frequency: 3 seconds
state: active[3]
temperature: 53 C
critical (S5): 105 C
passive: 100 C: tc1=1 tc2=2 tsp=100 devices=CPU0 CPU1
active[0]: 90 C: devices=FAN0
active[1]: 80 C: devices=FAN1
active[2]: 55 C: devices=FAN2
active[3]: 45 C: devices=FAN3
active[4]: 35 C: devices=FAN4

...and it looks to work :)