Hi Pradeep, 於 一，2012-03-19 於 17:03 +0530，Pradeep Subrahmanion 提到： > > For the maximum level causes blank screen... > > > > Please kindly help to identify which driver handle the brightness > > change, run the following 2 commands: > > > > # echo 5 > /sys/class/backlight/acer-wmi/brightness > > # echo 5 > /sys/class/backlight/intel_backlight/brightness > > > > Which one works to change brightness on your machine? > > Both of them do not work for me.Only hot keys are working. > > Writing to /sys/class/backlight/acer-wmi/brightness > > and /sys/class/backlight/intel_backlight/brightness do not cause any > > change in brightness. > > > Regards , > > Pradeep Subrahmanion A bit strange... Could you please paste your /proc/cmdline ? Did you add acpi_osi="Linux" ? Thanks a lot! Joey Lee -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
