Summary: | Screen brightness cannot be adjusted from keyboard or UI | ||
---|---|---|---|
Product: | [Plasma] Powerdevil | Reporter: | kdebugs |
Component: | general | Assignee: | Plasma Bugs List <plasma-bugs> |
Status: | RESOLVED DOWNSTREAM | ||
Severity: | normal | CC: | listes.rusconi, nate |
Priority: | NOR | ||
Version: | 5.12.3 | ||
Target Milestone: | --- | ||
Platform: | Neon | ||
OS: | Linux | ||
Latest Commit: | Version Fixed In: |
Description
kdebugs
2018-03-09 20:58:39 UTC
Updated to reflect issue still present after upgrade to 5.12.3 and packages libpowerdevilcore2/xenial,now 4:5.12.3-0neon+16.04+xenial+build63 amd64 [installed,automatic] libpowerdevilui5/xenial,now 4:5.12.3-0neon+16.04+xenial+build63 amd64 [installed,automatic] libupower-glib3/xenial-updates,now 0.99.4-2ubuntu0.3 amd64 [installed,automatic] powerdevil/xenial,now 4:5.12.3-0neon+16.04+xenial+build63 amd64 [installed,automatic] powerdevil-data/xenial,xenial,xenial,now 4:5.12.3-0neon+16.04+xenial+build63 all [installed,automatic] powermgmt-base/xenial,xenial,now 1.31+nmu1 all [installed] What kind of information is required to proceed with troubleshooting this issue? I discovered that clicking the Apply button is required when changing the screen brightness setting from the "Energy saving" menu of the system settings panel. That is not intuitive, one would expect the luminosity of the screen to change along with the sliding of the control. For a ZBook (Xeon) HP laptop workstation, the settings cannot be modified using the fn/f5 fn/f6 keyboard combinations. Adding "acpi_backlight=native" to GRUB_CMDLINE_LINUX in /etc/default/grub solved the issue. So it would be up to your distro to supply that, then. Thanks for checking in! |