Hi, I have a Dell Vostro 3560 laptop, with hybrid graphics (intel + radeon). This exposes 3 backlight devices - acpi_video0, acpi_video1, and intel_backlight. Only the intel_backlight/brightness file actually changes the backlight. Is this a kernel bug, or should userspace 'know' which backlight file to use based on which graphics device is active? XFCE picks the first one it finds (acpi_video0), which doesn't work. I was using acpi_backlight=vendor, but some recent changes to memory allocation seem to have exposed that that SMM method is not safe to use with EFI... (see http://marc.info/?t=138811462300004&r=1&w=2) I've uploaded my ACPI tables to http://members.optusnet.com.au/bbaetz1/acpi.tgz Bradley -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
