Thank you for reporting this bug to Ubuntu. Ubuntu 21.10 (impish) reached end-of-life on July 14, 2022.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in. ** Changed in: gnome-control-center (Ubuntu) Status: Triaged => Won't Fix -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1948486 Title: Keyboard Brightness control not operable using keyboard or mouse scrollwheel Status in gnome-control-center package in Ubuntu: Won't Fix Bug description: At the power settings there is a slider for setting the "Keyboard Brightness". My ThinkPad T460s supports three levels: off, dim, bright With clicking and/or dragging I could move the slider to either the left-most, center, or right-most position. However when place the mouse cursor on top of it and use the scroll wheel, I could not move the slider. Same happens when I try to use the cursor keys on the keyboard. My assumption: When using the scroll wheel or the keyboard, the slider is moved by only a small fraction. So if the left-most position is 0% and the right-most is 100%, it will try to increment it by 10%. It does so, but as the only valid values are 0%, 50%, and 100%, it tries to round it to the nearest value, which is 0%, so it jumps back to where it was. You can see the slider briefly jump a short distance but only very briefly, not much more than a flicker. While I could just click/drag with the mouse to change the slider, for some people it might be an accessibility issue and thus I believe this should be fixed somehow. ProblemType: Bug DistroRelease: Ubuntu 21.10 Package: gnome-control-center 1:40.0-1ubuntu5 ProcVersionSignature: Ubuntu 5.13.0-20.20-generic 5.13.14 Uname: Linux 5.13.0-20-generic x86_64 ApportVersion: 2.20.11-0ubuntu70 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Fri Oct 22 19:16:07 2021 InstallationDate: Installed on 2019-11-25 (697 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) SourcePackage: gnome-control-center UpgradeStatus: Upgraded to impish on 2021-10-22 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1948486/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

