I'm seeing this problem on Ubuntu 16.10. Not too frequent.
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https://bugs.launchpad.net/bugs/1389077
Title:
[HP ProBook 4530s] Intel Powerclamp is Slowing CPU
To manage notifications ab
I have a similar problem. As an workarround I changed the order of the
thermal devices in the thermald configuration:
gedit /etc/thermald/thermal-cpu-cdev-order.xml
cpufreq
rapl_controller
intel_pstate
Processor
intel_powerclamp
I tested with the following orders, both woked fine
Same here. running kubuntu 15.10 on a LG laptop.
I disabled the intel_powerclamp using this method:
- Opened the "/etc/thermald/thermal-cpu-cdev-order.xml" file.
- Removed the line referencing the intel_powerclamp.
- Issued an "service thermald stop/start".
This is probably easier than removi
I am running 15.10/beta-2/ on laptop and close laptop everyday (power
suspend / resume only, not shutdown / reboot), and see the problem here
again, once in a while (a few days), the laptop becomes hot, fan start
spinning, then I started top, see kidle_inejct spinning up cpu, this
state can last fo
I can see the value in this sort of thing, as well, when power or heat
constraints exist.
Which is good for me since my laptop has bad heat dissipation. But this
implementation is pretty bad. I've noticed that the idle injection doesn't stop
for me until the process that caused it is killed. So
Had the same trouble, blacklisting intel_powerclamp and intel_rapl fixed
it. Thanks to @krzysdrewniak.
sudo sh -c 'cat < /etc/modprobe.d/blacklist-power.conf
# See: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1389077
blacklist intel_powerclamp
blacklist intel_rapl
EOF'
Thanks.
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You r
I'd like to report that blacklisting intel_powerclamp and intel_rapl on
my HP Probook 4530s appears to have mostly solved my "random I/O
freezes" (mouse, keyboard, display, or audio cutting out for a few
seconds at random), which also seem related to bug #1386721 .
I didn't see the syslog messages
I would think it a good idea if setting the pstate to "performance"
would disable powerclamp.
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https://bugs.launchpad.net/bugs/1389077
Title:
[HP ProBook 4530s] Intel Powerclamp is Slow
As an experiment, I removed the powerclamp driver and monitored the temp
sensors. The GPU never got close to high. The CPU has two thresholds,
high of 86 C and critical of 100 C. With the powerclamp driver, the idle
injection always kicked in at 86. Without, the temp stayed at around 99
C, never ev
Yes, you have a point there about injecting idle time to the CPU to cool down
the GPU. The thing is that modern GPU's (and CPU's) already have thermal
protection so I don't need intel_powerclamp to protect anything. Now, if I was
interested in keeping the power usage down then powerclamp would b
My GPU seems fine, well under the high threshold. I can see what the
logic is of throttling the CPU because the GPU is overheating--if the
CPU is throttled then less data is being fed to the GPU so the GPU is
indirectly slowed. But you're right, reducing the CPU by half is
overkill. And that seems
Hi William,
How is your GPU temperature when this happens? Btw, as a more permanent
temporary fix than rmmod you can blacklist it by creating the file
/etc/modprobe.d/blacklist-intel_powerclamp.conf and adding the line "blacklist
intel_powerclamp" to it.
As for my problem, I think it's a bit co
The fans are working fine, although maybe not as fast as before, and the
top tasks are java as expected.
There is something here that is new behavior, but I can't quite pin what
it is. Either:
1. The older kernels did not protect the CPU from overheating.
2. The older kernels used a different for
So after some more tests I got some interesting results. The problem seems to
be that the NVidia card runs much hotter in Linux than in Windows. Playing
"The Talos Principle" on Steam in Ubuntu the GPU temperature reaches 95-97C
while in Windows 8 it hovers around 75-80C. Pretty much the same t
Addition: the CPU temperature never goes above 80C when this happens and
I don't think the GPU temperature is a problem, I think the driver or
GPU itself will slow down if it gets too hot (but I could be wrong).
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I have noticed the same thing. If I start playing a game in wine, say
ETS2, on my laptop (Intel HD 4000+Nvidia 820M) it runs fine for maybe a
minute and after that the FPS drops like a rock. The "problem", if you
can call it that, is that the GPU temperature goes above 85C and thus
powerclamp kicks
Yes, intel_powerclamp is set to default to 85C as the default thermal
limit. It spawns these kidle_inject threads to help slow down and cool
the cpu. I believe there is a way to set the threshold higher, but it's
probably not a good idea. It would be better to see what is causing the
cpu to get
I found a workaround by rmmod intel_powerclamp. This removed the
kidle_inject threads and the speed was returned to normal.
However, I looked at my CPU temperature, and it was 87 deg C, over the
high threshold. It is possible that the idle injection is a new kernel
feature that is kicking in to pr
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