Dear Fedora community,
this is my first post in this forum. I apologize for any (surely not intentional!) mistake I will be making in posting this. I would like to ask your help for two issues (but maybe they are related and it is really only one issue) that I am having with Fedora 35 KDE and power management. I have already tried to google this and to search for similar problem in this forum, but without success. I hope I did not miss anything!
First of all, some information about my system (I did a fresh install of Fedora 35 something like a week ago, dual boot with Windows 11):
This is a ThinkPad T14s, first generation.
I did not manually install anything related to kernel and power management: just normal programs I use, like Latex, Spotify, etc… Please note, however, that I have upgraded to version 5.17 of the kernel. (I mention it because I have found here ThinkPad ACPI Driver Picking Up New Features With Linux 5.17 - Phoronix
that this version of the kernel has some changes regarding battery management on thinkpads).
In particular, I never installed tlp. The default power profile daemon seems to be running fine:
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I have not touched any BIOS options, expect for Secure Boot (disabled) and the Standby option, which I set to “Linux” (it was “Windows”).
Now let me describe my problems (both of them where there before the upgrade to 5.17 and still persist now).
First one. I open KDE system settings. I click power management. I click activity power settings. I click either one of the two other sections (so either energy saving or advanced power settings). The following message appears:
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This is perfectly reproducible (in the sense that it happens to me every time that I follow these steps). Please note that I have exactly written all of my actions, so the message appears even though I have not changed anything.
Second problem. I want to change my battery charging limit (say, to 80%). I do it in this section:
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Then I click apply. No errors. I click somewhere else (anywhere, let us say on “energy saving” for the sake of concreteness). When I return to the section “advanced power settings” the limit is back to 100%.
One last piece of information. I believe that with my configuration I should see the options perfomance, balance, battery saving in the panel widget, like here
However they are not there. This is what I have:
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Now I might be wrong, but I think I had those options before upgrading to 5.17.
I would be happy for any kind of help you can give. By the way, I am really having a good time on my Fedora 35 KDE. This is almost the only problem I had so far.
Again if I have broke any of the good practices that should be observed while posting in this forum do not hesitate to let me know. I would also be happy to give you any other info you may need on my setup.
Thank you in advance,