6.2.0-34.34 has been released
** Changed in: linux (Ubuntu)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/2025040
Title:
increased power usage after upgrade from kinetic to lunar
Status in linux package in Ubuntu:
Fix Released
Bug description:
Hi
I have just upgrade and power usage is double or more under lunar.
Kernel version went from 5.19.0-43 to 6.2.0-20.
Running powertop, I see that C8 is being used with 5.19 but 6.2 does
not go to a higher power saving state than C3.
I tried the Ubuntu kernel from jammy ie 5.15.0-73. It also uses C8.
I have also tried the 5.15.108 & 5.10.17 mainline kernels. Both of
these do not go to higher power saving state than C3.
All these tests have been run on the same partition ie. only the
kernel version has changed.
Laptop is a HP 15s-fq4011TU 11th Gen Intel with Tiger Lake Iris Xe
graphics.
So it seems to me:
1) Ubuntu has applied a patch to the mainline kernel that improves power
saving in 5.15 and 5.19
2) This patch either hasn't been applied to 6.2 or no longer works.
Could you pls let me know what other info you need or what I could
look at next?
Thanks
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