Public bug reported: (From http://bugzilla.gnome.org/show_bug.cgi?id=364383 ) There is an issue in 91-reset-brightness-state.patch (and maybe some related patches) where even if the hardware doesn't report a valid brightness, it will try to dim the screen.
The patch defines LAPTOP_PANEL_CURRENT_BRIGHTNESS = -1, and then later passes it to gpm_brightness_level_save, which compares it to itself, causing the first IF to always be true (bypassing the error checking). I'm not exactly sure how it crashes, as I haven't compiled it, but it needs looking into. Thanks Henrik Rosenø for reporting this one. ** Affects: gnome-power-manager (Ubuntu) Importance: Undecided Status: Unconfirmed -- Crash on Systems that don't report Screen Brightness https://launchpad.net/bugs/68216 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs