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in lucid, with grub2, add acpi_osi=\\\!Windows 2006\\\ to
/etc/default/grub (or to /boot/grub.menu.lst, under boot parameters for
kernel to be loaded).
This fix, however, did not work for me. I still boot up, login, have
frequency scaling working properly (governor ondemand -d 100 -u
200)
from dmesg | grep CPU (attached)
What does the following mean?
[ 40.806951] CPUFREQ: Per core ondemand sysfs interface is deprecated
** Attachment added: CPU.dmesg.txt
http://launchpadlibrarian.net/37714713/CPU.dmesg.txt
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acpi-cpufreq doesn't allow 800Mhz on Fujistu T4220
As u can see, my laptop is a Dell Latitude with a T2500 processor ...
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acpi-cpufreq doesn't allow 800Mhz on Fujistu T4220
https://bugs.launchpad.net/bugs/177076
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** Changed in: linux (Fedora)
Status: Confirmed = Won't Fix
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acpi-cpufreq doesn't allow 800Mhz on Fujistu T4220
https://bugs.launchpad.net/bugs/177076
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I installed Ubuntu 8.10 via Wubi, and this bug is not present there. I
have not tested it with a regular install of 8.10
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acpi-cpufreq doesn't allow 800Mhz on Fujistu T4220
https://bugs.launchpad.net/bugs/177076
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Bugs, which
Can someone upload the DSDT file somewhere? the original source seems to
no longer exist.
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acpi-cpufreq doesn't allow 800Mhz on Fujistu T4220
https://bugs.launchpad.net/bugs/177076
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Can someone please have a guide how to integrate the DSDT, and get
scaling working!
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acpi-cpufreq doesn't allow 800Mhz on Fujistu T4220
https://bugs.launchpad.net/bugs/177076
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Aslo, does anyone know where to insert acpi_osi line ?
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acpi-cpufreq doesn't allow 800Mhz on Fujistu T4220
https://bugs.launchpad.net/bugs/177076
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Unfortunately the problem lies in the ACPI-DSDT: One could put quirks in the
kernel to try and work around the broken DSDT, but an updated DSDT
(http://ginkel2.boerde.de/Lifebook_4220/lt4220.tgz) is probably the correct
approach to fix this one.
** Changed in: linux (Ubuntu)
Status:
Hi Guys,
I'm glad to hear there is at least a workaround for this bug. I spoke
with a member of the kernel team and this is probably as good as this
will get in terms of a solution prior to the Hardy Heron release. It
is not a matter of importance of the bug, but rather the amount of
resources
Ryan Campbell
I can confirm that the wiki page works. I know it's my page. The entry about
DSDT is somebody called Ginkel.
I'm now in the proces of the second solution because the first worked but when
i unplugged the power it got stuck to 800 even when i replugged the power
adapter
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MartinGinkel
came with the right DSDT solution
I got CPU scaling working now
Got no idea where to upload this to for mainstream
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acpi-cpufreq doesn't allow 800Mhz on Fujistu T4220
https://bugs.launchpad.net/bugs/177076
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** Changed in: linux (Ubuntu)
Status: Incomplete = Triaged
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acpi-cpufreq doesn't allow 800Mhz on Fujistu T4220
https://bugs.launchpad.net/bugs/177076
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Hi Ryan,
Thanks for the info. Chris, can you confirm if this helps resolve the
issue you are seeing? Thanks.
** Changed in: linux (Ubuntu)
Status: Triaged = Incomplete
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acpi-cpufreq doesn't allow 800Mhz on Fujistu T4220
https://bugs.launchpad.net/bugs/177076
You received this bug
I have tried the acpi_osi option and it works great.
cpu scaling is working fine at the moment.
So that is a workaround, but I wouldn't consider it a proper fix as it requires
manual editing of the grub menu.lst for anyone who hits this issue.
Is there some way of making this automated so others
Someone posted the following on the T4220 wiki page (
https://help.ubuntu.com/community/T4220 ):
Actually the problem lies in the ACPI-DSDT. The Linux-Kernel reports to
be WIN-Vista-compatible, therefore the DSDT tries to load an additional
piece of AML code in this case, which is not
** Changed in: linux (Fedora)
Status: Unknown = Confirmed
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acpi-cpufreq doesn't allow 800Mhz on Fujistu T4220
https://bugs.launchpad.net/bugs/177076
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** Bug watch added: Red Hat Bugzilla #403651
https://bugzilla.redhat.com/show_bug.cgi?id=403651
** Also affects: linux (Fedora) via
https://bugzilla.redhat.com/show_bug.cgi?id=403651
Importance: Unknown
Status: Unknown
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acpi-cpufreq doesn't allow 800Mhz on Fujistu T4220
Hi Chris,
Thank you for taking the time to report this bug and helping to make
Ubuntu better. Per the kernel teams bug policy, can you also attach the
following information:
* uname -a uname-a.log
* cat /proc/version_signature version.log
* dmesg dmesg.log
* sudo lspci -vvnn lspci-vvnn.log
** Attachment added: dmesg output
http://launchpadlibrarian.net/10992673/dmesg.log
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acpi-cpufreq doesn't allow 800Mhz on Fujistu T4220
https://bugs.launchpad.net/bugs/177076
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** Attachment added: lspci -vvnn ouput
http://launchpadlibrarian.net/10992674/lspci-vvnn.log
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acpi-cpufreq doesn't allow 800Mhz on Fujistu T4220
https://bugs.launchpad.net/bugs/177076
You received this bug notification because you are a member of Ubuntu
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** Attachment added: uname -a output
http://launchpadlibrarian.net/10992675/uname-a.log
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acpi-cpufreq doesn't allow 800Mhz on Fujistu T4220
https://bugs.launchpad.net/bugs/177076
You received this bug notification because you are a member of Ubuntu
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** Attachment added: /proc/version_signature
http://launchpadlibrarian.net/10992676/version.log
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acpi-cpufreq doesn't allow 800Mhz on Fujistu T4220
https://bugs.launchpad.net/bugs/177076
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My apologies for not including that data.
It has been attached now.
BTW. This looks to be reported in the RedHat bugzilla as bug 403651
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acpi-cpufreq doesn't allow 800Mhz on Fujistu T4220
https://bugs.launchpad.net/bugs/177076
You received this bug notification because you are a member of
Thanks Chris. Usually we'd be able to monitor the upstream bug report
from this launchpad report but for some reason it's not letting me set
it up. I'll have to inquire why. Regardless, I'm reassigning your
report to the kernel team. Thanks!
** Changed in: linux (Ubuntu)
Importance:
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