** Description changed: Using Ubuntu on Sony Vaio laptop with Nvidia 8 vga card: There is no way to control backlight brightness on Sony Vaios with 8-series adapters, e.g. nVidia Corporation GeForce 8400M GS nVidia Corporation GeForce 8600M GT (rev a1) - Apparently this is an issue with notebooks having their own registers in - which backlight brightness is stored, and these are unknown to nVidia - for Vaios, and no-one seems to know how to recover them. + The registers have been found (kudos to mikes!). See these hacked + nvclock sources for fixed versions which can set backlight on Sony + Vaios: - Earlier nVidia cards are supported by SmartDimmer - the SmartDimmer - developer says he just needs the register values to add support for the - 8-series. + http://stud.matrixcode.de/nvclock_hacked_seek.tgz + http://launchpadlibrarian.net/18755253/nvclock_hacked.tgz - Because there is no control at the hardware level, making calls to - sonybright.sh with hotkeys does nothing. + So far mikes' registers have been found to work on: + 8400M GS on Vaio SZ650 + 8400M GT on Vaio FZ38M, FZ11Z + 8600M GS on Vaio FZ31Z + + Invoking sonybright.sh with hotkeys will do nothing until the script + calls new versions either SmartDimmer or nvclock properly. Dual-adapter models (SZ6 among others) can get backlight control with the Intel adapter using xbacklight, and can get hotkey functionality as - per bug #173652 + per bug #173652.
-- No Screen Backlight Control; Sony Vaio with nvidia 8 series graphics https://bugs.launchpad.net/bugs/95444 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
