Public bug reported:
Like yesterday I have noticed my CPU on Leonovo Thinkpad T590 laptop has
starting to be consumed by kworker for 80% of 2-CPU 4-core processor.
I also see fan works like crazy and "ejects" hot air non stop. This has
never happened in my 6 months of having this new laptop.
Pro
The same day after I have reported this problem, kworker stopped consuming CPU.
I am pretty sure it was kworker/5 a problem.
Now I have executed "top" command, typed L and search string kworker and
all of the kworker processes are 0 CPU consumption (see attachment).
I think this problem "vanished
apport information
** Package changed: ubuntu => linux (Ubuntu)
** Tags added: apport-collected focal
** Description changed:
I wake-up my laptop from sleep (opened laptop lid) and I noticed my WiFi
connection was not working and also Bluetooth mouse was not working (in
settings it looked
apport information
** Attachment added: "AudioDevicesInUse.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448258/+files/AudioDevicesInUse.txt
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apport information
** Attachment added: "Lsusb.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448264/+files/Lsusb.txt
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You received this bug notification because you are a member of Kernel
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apport information
** Attachment added: "Lsusb-v.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448266/+files/Lsusb-v.txt
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1909
apport information
** Attachment added: "Lsusb-t.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448265/+files/Lsusb-t.txt
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You received this bug notification because you are a member of Kernel
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apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448262/+files/Lspci.txt
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You received this bug notification because you are a member of Kernel
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apport information
** Attachment added: "Lspci-vt.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448263/+files/Lspci-vt.txt
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apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448269/+files/ProcEnviron.txt
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apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448267/+files/ProcCpuinfo.txt
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apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448270/+files/ProcInterrupts.txt
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apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448271/+files/ProcModules.txt
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apport information
** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448259/+files/CRDA.txt
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Ti
apport information
** Attachment added: "IwConfig.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448261/+files/IwConfig.txt
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apport information
** Attachment added: "ProcCpuinfoMinimal.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448268/+files/ProcCpuinfoMinimal.txt
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apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448260/+files/CurrentDmesg.txt
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apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448275/+files/UdevDb.txt
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apport information
** Attachment added: "RfKill.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448274/+files/RfKill.txt
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apport information
** Attachment added: "acpidump.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448277/+files/acpidump.txt
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This problem has never appeared before and I am using Ubuntu 20.04 for
months on this laptop. I don't know how to reproduce this problem. I try
to close laptop lid and opened it for several time and everything works
like it has thousand times in last few months.
I changed package name to Linux. I
apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448276/+files/WifiSyslog.txt
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apport information
** Attachment added: "PulseList.txt"
https://bugs.launchpad.net/bugs/1909736/+attachment/5448272/+files/PulseList.txt
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