https://www.mail-archive.com/search?l=kde-bugs-dist@kde.org&q=subject:%22%5C%5Bplasmashell%5C%5D+%5C%5BBug+517619%5C%5D+Brightness+Control+Disappears+After+Resume+From+Suspend+or+Lid+Close+and+brightness+Becomes+Stuck+Until+Session+Restart%22&o=newest&f=1
subject:"\[plasmashell\] \[Bug 517619\] Brightness Control Disappears After Resume From Suspend or...