This seems to trigger gnome-settings-daemon to do the following execs: 24323 execve("/usr/lib/unity-settings-daemon/usd-backlight-helper", ["/usr/lib/unity-settings-daemon/u"..., "--get-max-brightness"], [/* 47 vars */] <unfinished ...> 24323 <... execve resumed> ) = 0 24324 execve("/usr/lib/unity-settings-daemon/usd-backlight-helper", ["/usr/lib/unity-settings-daemon/u"..., "--get-brightness"], [/* 47 vars */] <unfinished ...> 24324 <... execve resumed> ) = 0 24325 execve("/usr/lib/unity-settings-daemon/usd-backlight-helper", ["/usr/lib/unity-settings-daemon/u"..., "--get-brightness"], [/* 47 vars */] <unfinished ...> 24325 <... execve resumed> ) = 0 24326 execve("/usr/lib/unity-settings-daemon/usd-backlight-helper", ["/usr/lib/unity-settings-daemon/u"..., "--get-max-brightness"], [/* 47 vars */] <unfinished ...> 24326 <... execve resumed> ) = 0 24327 execve("/usr/local/sbin/pkexec", ["pkexec", "/usr/lib/unity-settings-daemon/u"..., "--set-brightness", "211"], [/* 47 vars */]) = -1 ENOENT (No such file or directory) 24327 execve("/usr/local/bin/pkexec", ["pkexec", "/usr/lib/unity-settings-daemon/u"..., "--set-brightness", "211"], [/* 47 vars */]) = -1 ENOENT (No such file or directory) 24327 execve("/usr/sbin/pkexec", ["pkexec", "/usr/lib/unity-settings-daemon/u"..., "--set-brightness", "211"], [/* 47 vars */]) = -1 ENOENT (No such file or directory) 24327 execve("/usr/bin/pkexec", ["pkexec", "/usr/lib/unity-settings-daemon/u"..., "--set-brightness", "211"], [/* 47 vars */] <unfinished ...> 24327 <... execve resumed> ) = 0 24327 sendto(7, "<86>Sep 22 19:47:03 pkexec: pam_"..., 98, MSG_NOSIGNAL, NULL, 0) = 98 24327 <... readlink resumed> "/usr/bin/pkexec", 4096) = 15 24327 sendto(7, "<85>Sep 22 19:47:03 pkexec[24327"..., 182, MSG_NOSIGNAL, NULL, 0) = 182 24327 execve("/usr/lib/unity-settings-daemon/usd-backlight-helper", ["/usr/lib/unity-settings-daemon/u"..., "--set-brightness", "211"], [/* 10 vars */] <unfinished ...> 24327 <... execve resumed> ) = 0
The last of these uses pkexec which will trigger a new session. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1626651 Title: brightness keys are handled slower in Yakkety than Xenial To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/policykit-1/+bug/1626651/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs