** Summary changed: - Brightness keys on Sony Vaio with nvidia doesn't work + No LED Brightness Control; Sony Vaio with nvidia 8 series graphics
** Description changed: - Using Ubuntu on Sony Vaio laptop with Nvidia 8 vga card, the Fn keys - doesn't work and brightness cannot be adjusted easily.by hotkeys... + 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. + + Earlier nVidia cards are supported by SmartDimmer - the SmartDimmer + developer says he just needs the register values to add support for the + 8-series. + + Because there is no control at the hardware level, making calls to + sonybright.sh with hotkeys does nothing. + + 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 ** Summary changed: - No LED Brightness Control; Sony Vaio with nvidia 8 series graphics + No Screen Backlight Control; Sony Vaio with nvidia 8 series graphics -- 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 [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
