I can confirm this. When I leave the netbook idle, the brightness control starts spazzing out, flickering back and forth between two brightness levels, and eating 100% of one CPU core (at least if notify- osd is running). On the login screen (no notify-osd), it happens fast enough that it may be a safety hazard for epileptics.
It looks like some "for each" function looks at each backlight object present -- and on Samsung, there are two /sys/class/backlight entries: "acpi_video0" and "samsung". There's also the xbacklight support in the Intel driver, so there's really no reason for it to be going to sysfs, if that is indeed what it is doing. ** Attachment added: "Log of gnome-power-manager spazzing" https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/387269/+attachment/1538734/+files/g-p-m.log -- If I am using the battery and want to brighten the screen as soon as I increase the brightness level the level indicator continues to flash, even if I only adjsted it by one click/level. This also locks me out of some functions, such as turning the computer of via my login, or the system/apllication pull down menus https://bugs.launchpad.net/bugs/387269 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
