Marking this as Won't Fix as this bug has not been updated for a year.
** Changed in: linux (Ubuntu)
Status: Incomplete => Won't Fix
** Changed in: linux (Ubuntu)
Assignee: Colin Ian King (colin-king) => (unassigned)
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@Dean, is it is possible to supply the data required as per asked in
comment #13?
** Changed in: linux (Ubuntu)
Status: In Progress => Incomplete
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Sorry it was off my radar.
Can you please attach `sudo lspci -vvnn`? The lspci attached by apport
doesn't have config space information.
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@Kai-Heng, was there any follow up on the TB issue here?
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https://bugs.launchpad.net/bugs/1881601
Title:
Fan excessively runs, even when idle
Status in linux package in
To add some additional information... I upgraded the BIOS of the machine
to the latest, plugged in the TB display and rebooted to -33. The fan
spun up and it didn't pass beyond C3. I unplugged the TB display and it
then progressed all the way to C7 so it appears to be a TB issue. Kai-
Heng is
Looking at the powerstat data it is also interesting to note that your
machine is consuming a lot of CPU, ~50% userspace, ~29% kernel. It may
be worth checking to see if there are any rouge processes running using
top or htop to see if that's also contributing to the machine busy
state.
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Unplugging my second display (which was plugged into the USB-C
(thunderbolt) port) gets me:
:~# cat /sys/kernel/debug/pmc_core/package_cstate_show
Package C2 : 9432921176
Package C3 : 31184452865
Package C6 : 2187632
Package C7 : 0
Package C8 : 0
Package C9 : 0
Package C10 : 0
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The -23 kernel doesn't seem to be better. In general on a well-behaves
Intel SoC it should reach Package C8.
I _guess_ it's because there's something connect to Thunderbolt. Can you
please try unplug the "Cable Matters USB-C Video Cable" device from
thunderbolt port, and see if the SoC can reach
Here's a powerstat log from the machine under load running 5.4.0-23. I
can do the same for -33 if that's more helpful.
:~# cat /sys/kernel/debug/pmc_core/package_cstate_show
Package C2 : 9390902880
Package C3 : 31168180646
Package C6 : 0
Package C7 : 0
Package C8 : 0
Package C9 : 0
Package C10 :
:~# uname -a
Linux hero 5.4.0-23-generic #27 SMP Tue Jun 2 15:30:43 UTC 2020 x86_64 x86_64
x86_64 GNU/Linux
:~# cat /sys/kernel/debug/pmc_core/package_cstate_show
Package C2 : 6690026342
Package C3 : 29921735212
Package C6 : 0
Package C7 : 0
Package C8 : 0
Package C9 : 0
Package C10 : 0
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Dean,
Can you please attach the output of the following command:
# cat /sys/kernel/debug/pmc_core/package_cstate_show
I suspect the package stays at PC2/PC3.
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So, I've spent some time on this, and I'll be honest, I don't have a lot
of answers. I know that -9 is awful. I've booted them all and ran
powerstat on all of them logged into the desktop with nothing extra
running. Attached is a tar file with the results of all of the kernels I
have installed,
Hi Dean,
I've built 4 kernels at different parts of the 5.4. development stage
for a quick check to see when the issue appeared. This should allow me
to hone in on the i915 changes that are pertinent to this regressions.
Please test these and let me know the fan results.
Lets do some simple sanity checking to begin with to try to narrow this
down.
Can you install and test kernel 5.4.0-18 using:
sudo apt install linux-image-5.4.0-18-generic
..and check if this runs OK with the fans and please sanity check the
kernel is the right one using name -r
if the fans
** Changed in: linux (Ubuntu)
Status: New => In Progress
** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Colin Ian King (colin-king)
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