OK, I'm not so sure if this is a driver fault anymore. I've found a way to somewhat fix it using extra boot parameter - "acpi_backlight=vendor". Now I can control the brightness using fn keys or the applet. The only glitch is that when I unplug the power, the screen goes completely dark. I have to press "increase backlight" key several times, switch to console and back to get the visuals.
Same switching trick helps when the keyboard gets locked on the first use of backlight fn keys. Now I can see that it's because of some kind of loop. When I press the key the brightness goes up/down until it reaches the end of scale, despite the fact that I pressed the key only once. After the switching trick, it starts working as expected, that is brightness goes up/down just by a little bit and the keyboard is not getting locked anymore. -- brightness hardware control on Samsung R510 doesn't work https://bugs.launchpad.net/bugs/297962 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
