Hello, I got a monitor (Samsung SyncMaster 757DFX) controllable by USB port in my hands - and found no utility to do this in Linux. The MouScreen utility from Samsung is available only for Windows (and is even very hard to find and download). There are two utilities for Apple Cinema Displays for Linux - actctl and acdcontrol. The latter also works with 757DFX - but these utilities can only control brightness. So I wrote usbmonctl that's (hopefully) universal for monitors complying to USB Monitor Control Class Specification: http://www.usb.org/developers/devclass_docs/usbmon10.pdf It attempts to detect all available controls and allow the user to change them. 757DFX has some non-standard controls and also some useless (non-working) ones. It's likely that other monitors will have some other quirks. usbmonctl uses hiddev device to access the monitor. usbmonctl is GPL-licensed and is available at: http://www.rainbow-software.org/linux/ If someone has such monitor (they're very rare), please test. -- Ondrej Zary -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html