Hotkey stuff on this kind of laptop generates ACPI events, and acpid is supposed to pick up on those and launch the scripts I mentioned. So the first thing to do is make sure you're got the ACPI-related packages that wire things together installed. Make sure the acpi-support package is installed, and check for the presence of the config files:
/etc/acpi/events/sony-brightness-down /etc/acpi/events/sony-brightness-up Do a reboot if you had to install anything. If it doesn't work now, you could be missing the driver modules for the SPIC (Sony Programmable I/O Controller). Make sure you have the sonypi and/or sony-laptop modules loaded into the kernel. Check /var/log/kern.log to see whether sonypi and sony-laptop are being loaded and if they detect any hotkeys. My laptop sees both modules detecting the keys, and both of them setting up some input layer classes. Redundancy, but it works for me. If they don't seem to be there, try: $ lsmod | grep -i sony and if you don't see sony_laptop and/or sonypi in the output, try: $ sudo modprobe sonypi $ sudo modprobe sony-laptop if either one succeeds, add a line in /etc/modules about it to make sure it gets loaded at the next boot. Alternatively, you could install the modconf package, and run that in a terminal under sudo if you'd like to choose from a list. modconf should do the right thing to your /etc/modules file. Then reboot and try the hotkeys again. Hope this gets you on your feet! -- Screen Brightness adjustment fails for Sony VAIO VGN-AR250G https://bugs.launchpad.net/bugs/152095 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
