It still exists in current releases.
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https://bugs.launchpad.net/bugs/827243
Title:
ThinkPad T43 CPU scaling (ondemand/fixed/..) not working correctly
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Public bug reported:
Reopening bug in - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/519142
Is there a better way to reopen with the history?
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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You received this bug notification because you are a member of
plafond, thanks for your feedback. I dunno if this will be fixed
somewhere in the future, may be if more ppl will complain.. though
thinkpad T43 is an old machine, so i doubt any prirority is given to
this. But this is one (not only) of the reasons i run Linux, to be able
to use older hardware,
Well, Timo
T43 thinkpads feature Pentium M Dothan CPU (and the respective chipset),
notice it's the previous generation before core solo/duo cpus. May be
your issues are not the same as mine (and few other members here who
reported T43 models)?
As I said something changed after 2.6.27 kernels..
I'm using qemu-kvm 0.12.3 with -vga std and with res like 1680x1050,
1440x900 and a few other it crashes/quits immediately with message
Could not open SDL display. It happens for me both when switching with
ctrl-alt-f or with cmd line option -full-screen. With 1024x768 for
example it does not
Forgot to mention that I'm also getting constantly the error message:
BUG: kvm_dirty_pages_log_enable_slot: invalid parameters
BUG: kvm_dirty_pages_log_disable_slot: invalid parameters
BUG: kvm_dirty_pages_log_enable_slot: invalid parameters
BUG: kvm_dirty_pages_log_disable_slot: invalid
Marko,
Thanks for your feedback. Could you please specify your exact thinkpad
model (or at least intel chipset/cpu) and the version of Ubuntu/kernel
you are using?
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ThinkPad T43 CPU scaling (ondemand/fixed/..) not working correctly - Ubuntu
9.10/10.4 (stock mainline)
I'm using qemu-kvm 0.12.3 with -vga std and with res like 1680x1050,
1440x900 and a few other it crashes/quits immediately with message
Could not open SDL display. It happens for me both when switching with
ctrl-alt-f or with cmd line option -full-screen. With 1024x768 for
example it does not
Forgot to mention that I'm also getting constantly the error message:
BUG: kvm_dirty_pages_log_enable_slot: invalid parameters
BUG: kvm_dirty_pages_log_disable_slot: invalid parameters
BUG: kvm_dirty_pages_log_enable_slot: invalid parameters
BUG: kvm_dirty_pages_log_disable_slot: invalid
** Summary changed:
- ondemand CPU scaling not working correctly, ThinkPad T43, Ubuntu 9.10
+ ondemand CPU scaling not working correctly, ThinkPad T43, Ubuntu 9.10/10.4
** Tags added: lucid
** Tags removed: needs-upstream-testing
** Summary changed:
- ondemand CPU scaling not working
I installed 10.4 LTS and both with stock and also with daily mainline
kernels (Linux boxybox 2.6.34-999-generic #201005121008 SMP Wed May 12
10:11:28 UTC 2010 i686 GNU/Linux) situation is again the same and bug is
present. Removed the tag needs-upstream-testing.
@Timo Jyrinki
It is not related
No, the ondemand CPU scaling behaves the same way both in battery and in
AC mode - i.e. it doesn't work correctly.
It's not only about the output of cpufreq-info (or some system values in
/proc). Sometimes it shows hardware limits: 800 MHz - 2.00 GHz,
sometimes hardware limits: 800 MHz - 800 MHz,
Important to note is that PHC kernels didn't solve for me the problem
permanently, it looked only at first place solved, but then it became
the same like with the standard Ubuntu kernels.
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ondemand CPU scaling not working correctly, ThinkPad T43, Ubuntu 9.10
Public bug reported:
CPU speed is stuck at 800MHz, almost all of the time, doesn't matter if
CPU is loaded or not.
I can see from utilities like powertop or the gnome cpu freq applet,
that it changes to 2GHz in some moments, but without actual relation
with cpu load. When I need the CPU speed
** Attachment added: AlsaDevices.txt
http://launchpadlibrarian.net/38912583/AlsaDevices.txt
** Attachment added: AplayDevices.txt
http://launchpadlibrarian.net/38912584/AplayDevices.txt
** Attachment added: ArecordDevices.txt
http://launchpadlibrarian.net/38912585/ArecordDevices.txt
** Attachment removed: WifiSyslog.txt
http://launchpadlibrarian.net/38912601/WifiSyslog.txt
** Attachment removed: IwConfig.txt
http://launchpadlibrarian.net/38912592/IwConfig.txt
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CPU scaling not working correctly, ThinkPad T43, Ubuntu 9.10
https://bugs.launchpad.net/bugs/519142
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