** Changed in: thermald (Ubuntu)
Assignee: Ubuntu Kernel Team (ubuntu-kernel-team) => koba (kobako)
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https://bugs.launchpad.net/bugs/1763144
Title:
Significantly lo
Hi, I updated this bug a couple of months ago to see if recent backport
fixes addressed the issue. If this has helped, please add your notes to
the bug report so we can close the issue.
** Changed in: thermald (Ubuntu)
Assignee: Colin Ian King (colin-king) => Ubuntu Kernel Team
(ubuntu-kerne
A recent update of thermald 1.9.1-1ubuntu0.5 in focal contains many of
the upstream thermald patches that have been backported to support more
modern laptops.
The Intel fixes included are as follows:
- Disable legacy rapl cdev when rapl-mmio is in use
This will prevent PL1/PL2 power limit
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: thermald (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/176
I'm affected too (Ubuntu focal, kernel 5.4).
I found a simple workaround here using thermald :
https://forums.lenovo.com/t5/Other-Linux-Discussions/X1C6-T480s-low-cTDP-and-trip-temperature-in-Linux/m-p/4637873#M14378
helped from here :
https://github.com/intel/thermal_daemon/issues/215
It's just a
** Also affects: thermald (Ubuntu)
Importance: Undecided
Status: New
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Title:
Significantly lower power and thermal limi
The described behavior with CPU thermal throtteling was confirmed by
Lenovo. The limits are higher as in Windows "DPTF" works by driver
support and enables the "desk mode". In Linux the "desk mode" is never
reached due to the lack of sensor information and the system operates in
the "lap mode" whic
"It turned out that the power limits in Windows are broken, and the ones in
Linux are correct, so this bug is in fact Invalid."
Where do I find that?
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This bug was about different power limits for the non-dGPU version
compared to Windows. It turned out that the power limits in Windows are
broken, and the ones in Linux are correct, so this bug is in fact
Invalid.
For the dGPU, I'm not sure what the intention is. Maybe report a bug
against the nvi
This bug was about different power limits for the non-dGPU version
compared to Windows. It turned out that the power limits in Windows are
broken, and the ones in Linux are correct, so this bug is in fact
Invalid.
For the dGPU, I'm not sure what the intention is. Maybe report a bug
against the nvi
I think, we have a problem here, that needs to be solved on multiple
issues.
* there's throttling hitting in to avoid a dGPU reach its fall-off limit
which is 76° (T580, i7-8550u, MX150). The only possible way to stay
below this thermal limit is to power down the CPU massively, which leads
to =>
I own a T460P with i7-6700HQ cpu.
The thermal throttling makes my pc lag like hell.
Even on the next day, after a night in standby.
Only a restart can fix it.
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Quoted from Lenovo's feedback:
"
Due to "DPTF" function will act on Windows system by BIOS/Driver support, the
system will turn to cool mode when keep high temperature several minutes.
But Linux system didn't have driver support DPTF function, it only have TDP
limit on platform.
So user should h
Sure, it's not designed for 44W by Intel. I only measured 27W maximum
when configured to 44W. It's just that the laptop is likely configured
for an overall thermal limit of 44W because it can house a MX150 with
the same cooling system (dual heat pipe). In any case, on Windows it is
not bound by 15W
Hi,
TDP Intel U CPU family is defined as 25w.
Please refer to:
https://www.intel.com/content/www/us/en/products/processors/core/i5-processors/i5-8250u.html
CPU is not meant to go to 44W that is far away as Intel designed.
To allow the optimal operation and long-term reliability of Intel
processo
Sorry, messed up the tag a bit.
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Title:
Significantly lower power and thermal limits on ThinkPad T480s (and
probably others) than
I have seen this problem on all bionic kernels I have tested. The
machine has never seen anything older than bionic. I installed it from a
daily end of March.
The mainline kernel does not fix the bug.
** Tags added: bug-exists-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete => C
Note that the thermal limit seems to be rewritten by the EC at random
times.
The person originally discovering the issue wrote a userspace daemon to
write the proper stuff in memory from time to time -
https://github.com/erpalma/lenovo-throttling-fix - but this should best
get fixed in the kernel
He also reported it to Lenovo at https://forums.lenovo.com/t5/Linux-
Discussion/X1C6-T480s-low-cTDP-and-trip-temperature-in-
Linux/td-p/4028489
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Did this issue start happening after an update/upgrade? Was there a
prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.16 kernel[
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