Perhaps your CPU is not 100% Intel/AMD compatible?
Uhm... since it is an Intel CPU, it would be quite strange * The
CPU in question is specifically:
vendor_id**
*: GenuineIntel
cpu family** *: 6
model** *** *: 15
model name** *: Intel(R) Pentium(R) Dual* CPU* T2330* @ 1.60GHz
stepping** *: 13
if it helps...
However the bug obviously is hardware specific since it works for
you, and I guess more people would have complained so far. So, word
of caution is in order for laptop users, especially those with this
CPU (and probably with the similar Core2-class CPU's and this
chipset, which is i960 IIRC), to check if scaling works ok for them.
I for example detected this error just because I have the CPU
Frequency Scaling Monitor applet loaded on the Gnome panel, so I've
thus noticed it won't budge any further from 800 MHz anymore...
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12-09-2010, 01:44 AM
NoOp
CPU frequency went down
On 12/08/2010 03:49 PM, A. Kromic wrote:
> On 08/12/10 23:10, NoOp wrote:
>>
>> You're running the maverick 10.10 kernel in 10.04?
>> From your other post:
>> <quote>
>> My machine is ThinkPad R61i, CPU is Pentium DC 1.6G (lowest speed 800M,
>> that's what I have now...) OS is Ubuntu Lucid (10.04LTS).
>> </quote>
>>
>>
>
> Yes, I'm running the Maverick (backport to LTS) kernel in Lucid. Or at
> least i WAS running it...
>
> I've also tested the last 32-27 kernel, but the bug is not fixed. Then I
> decided to go through a tedious bug hunt process - I've installed all
> previous kernels and booted them one by one. The results of the testing
> showed that old Lucid kernels, 2.6.32-21 through *-24 work fine (i.e.
> scaling works fine), while all *-25 kernels and newer don't. That
> includes the last Lucid 2.6.32 and the last Maverick 2.6.35 backported
> kernels.
>
> I've worked around the problem now by using the newest kernel that
> scales normally (the above mentioned 2.6.32-24). Now when it is (most
> probably) sure the bug is in the kernel, I need to determine if I should
> post a new bug against it, or is it already covered by one...
Again, you can try:
https://bugs.launchpad.net/ubuntu/+source/linux
and search by 'scaling' etc. If nothing jumps out at you I recommend
that you file a new bug. If your bug turns out to be a duplicate,
someone will come along and mark it accordingly.
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12-09-2010, 03:27 AM
MR ZenWiz
CPU frequency went down
On Wed, Dec 8, 2010 at 6:44 PM, NoOp <glgxg@sbcglobal.net> wrote:
>
> Again, you can try:
> https://bugs.launchpad.net/ubuntu/+source/linux
> and search by 'scaling' etc. If nothing jumps out at you I recommend
> that you file a new bug. If your bug turns out to be a duplicate,
> someone will come along and mark it accordingly.
>
That could be worth a shot, but still, some kind of evidence might be
helpful. I get this on my Athlon II X4 at home:
$ speed
Current speed: 800.000 800.000 800.000 800.000 MHz
Maximum speed: 2600.000 2600.000 2600.000 2600.000 MHz
Scales fine here on an AMD CPU....
2.6.35-23-generic #41-Ubuntu SMP Wed Nov 24 11:55:36 UTC 2010 x86_64 GNU/Linux
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=10.10
DISTRIB_CODENAME=maverick
DISTRIB_DESCRIPTION="Ubuntu 10.10"
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12-09-2010, 08:47 AM
"A. Kromic"
CPU frequency went down
On 09/12/10 05:27, MR ZenWiz wrote:
> On Wed, Dec 8, 2010 at 6:44 PM, NoOp <glgxg@sbcglobal.net> wrote:
>> Again, you can try:
>> https://bugs.launchpad.net/ubuntu/+source/linux
>> and search by 'scaling' etc. If nothing jumps out at you I recommend
>> that you file a new bug. If your bug turns out to be a duplicate,
>> someone will come along and mark it accordingly.
>>
> That could be worth a shot, but still, some kind of evidence might be
> helpful. I get this on my Athlon II X4 at home:
>
> $ speed
> Current speed: 800.000 800.000 800.000 800.000 MHz
> Maximum speed: 2600.000 2600.000 2600.000 2600.000 MHz
>
> Scales fine here on an AMD CPU....
>
> 2.6.35-23-generic #41-Ubuntu SMP Wed Nov 24 11:55:36 UTC 2010 x86_64 GNU/Linux
> DISTRIB_ID=Ubuntu
> DISTRIB_RELEASE=10.10
> DISTRIB_CODENAME=maverick
> DISTRIB_DESCRIPTION="Ubuntu 10.10"
>
I agree, therefore some advice would be helpful regarding what exactly
info to include in the bug report (what logs to look at, output of a
diagnostic tool etc...) which could be relevant for this problem...
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I'm running debian squeeze, fully updated. I can't seem to find how to
mount a cifs share which has DFS enabled. I read that after 2.6.26, DFS
support for cifs was streamlined into the kernel, yet I can't get it to
work:
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02-01-2011, 03:26 PM
"A. Kromic"
CPU frequency went down
On 09/12/10 00:49, A. Kromic wrote:
>
> I've worked around the problem now by using the newest kernel that
> scales normally (the above mentioned 2.6.32-24). Now when it is (most
> probably) sure the bug is in the kernel, I need to determine if I should
> post a new bug against it, or is it already covered by one...
>
> Regards,
>
I've decided to file a bug since I found no way to get frequency scaling
to work with any kernel newer than 2.6.32-24...
https://bugs.launchpad.net/bugs/706089
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02-01-2011, 09:41 PM
NoOp
CPU frequency went down
On 02/01/2011 08:26 AM, A. Kromic wrote:
> On 09/12/10 00:49, A. Kromic wrote:
>>
>> I've worked around the problem now by using the newest kernel that
>> scales normally (the above mentioned 2.6.32-24). Now when it is (most
>> probably) sure the bug is in the kernel, I need to determine if I should
>> post a new bug against it, or is it already covered by one...
>>
>> Regards,
>>
> I've decided to file a bug since I found no way to get frequency scaling
> to work with any kernel newer than 2.6.32-24...
>
> https://bugs.launchpad.net/bugs/706089
Were I you I'd summarize all that you've attempted in this tread, and
provide a link:
CPU frequency went down
* The
