Ubuntu
linux-source-2.6.15 package

Maximum freq scaling not reacheable - centrino duo

Bug #55689 reported by frankuzzo
6
Affects Status Importance Assigned to Milestone
linux-source-2.6.15 (Ubuntu)
Fix Released
Undecided
Unassigned

Bug Description

I can not set the processor speed to its maximum. I have a centrino duo laptop (hp nc6320 with T2300E cpu)

I can explain that with an example (on cpu1, the same for cpu0):

cat /sys/devices/system/cpu/cpu1/cpufreq/cpuinfo_max_freq
1667000

cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq
1333000

echo "1667000" > /sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq

cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq
1333000 <---this should be 1.6Ghz!!

On installation phase (ubuntu 6.06) while still in live mode, the single cpu recognised is able to reach maximum speed. I have an ipw3945 wireless card (seems to affect this-(?))

Thanks.

Revision history for this message
Peter Whittaker (pwwnow) wrote :

Please keep an eye on bug #63418 - there is a new ipw3945 coming for Feisty (and Edgy) and it may solve this problem. If it does, please mark this report as a dupe; if not, we'll keep this one open and assign it to the kernel team, in all likelihood.

Revision history for this message
Peter Whittaker (pwwnow) wrote :

Please also refer to bug #61449: Another user experienced a similar problem that stopped occurring after moving to Edgy (Ubuntu 6.10).

Any chance you can test your hardware with 6.10? Thanks!

Revision history for this message
frankuzzo (francozamp) wrote :

It seems unrelated to ipw, switching to edgy didn't change things. But searching inside here, I got a possible solution in bug #67293, specific for my setup (hp6320). It came out it should be an hardware related issue, since a workaround is to remove a module manually before shutdown. I'm doing some tests on it, to have the exact picture. Since now thanks a lot for the support!
Ciao.

Revision history for this message
Philip Paquette (pcpaquette) wrote :

Setting package to linux-source-2.6.15, so this bug gets out of the list of bugs without a package.
Can you confirm this bug still happens in edgy/feisty?
Did the workaround work? Should I close this bug?
Thanks.

Revision history for this message
frankuzzo (francozamp) wrote :

Everything's ok with the psmouse rmod trick. HP released a new BIOS to fix that too.
Thanks for following the bug.
Ciao.

Revision history for this message
Philip Paquette (pcpaquette) wrote :

Setting as fix released.

Changed in linux-source-2.6.15:
assignee: shooters → nobody
status: Needs Info → Fix Released
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