https://bugs.kde.org/show_bug.cgi?id=403125
Bug ID: 403125 Summary: Setting minimal brightness level on many latest Intel-based devices turn off backlight Product: Powerdevil Version: 5.13.5 Platform: Ubuntu Packages OS: Linux Status: REPORTED Severity: major Priority: NOR Component: general Assignee: plasma-b...@kde.org Reporter: russianneuroman...@ya.ru Target Milestone: --- SUMMARY Some HP devices (probably many) such as HP EliteBook Folio G1 and HP Elite x2 1013 G3 turn off backlight if user set minimal brightness level. Due to unresolved issues with hp_wmi brightness hotkeys doesn't work, so user left with black screen and no convenient option that would let him turn backlight on again. (Hence major severity.) Same happen not only on HP devices but also on other devices, such as GPD Win 2 and ASUS UX550GE. I propose to limit minimal brightness level for such devices to prevent backlight from turning off. STEPS TO REPRODUCE 1. Set brightness to minimal level OBSERVED RESULT Brightness is turned off EXPECTED RESULT Brightness is set to minimal level, but not turned off. SOFTWARE/OS VERSIONS Linux: Kubuntu 18.10 KDE Plasma Version: Plasma 5.13.5 KDE Frameworks Version: 5.50 Qt Version: 5.11.1 ADDITIONAL INFORMATION Intel not planning to resolve this issue in driver: https://bugs.freedesktop.org/show_bug.cgi?id=108618 Similar issue is resolved in Gnome Settings Daemon: https://gitlab.gnome.org/GNOME/gnome-settings-daemon/issues/54 https://gitlab.gnome.org/GNOME/gnome-settings-daemon/merge_requests/17 -- You are receiving this mail because: You are watching all bug changes.