Hi Jagan. > When did .unprepare and .disable are actually called? I turn-off the > backlight by echo 1 > /sys/class/backlight/backlight/bl_power and even > power of the board I assume the video transmission stop so it would > ended-up calling these, but I couldn't see prints. does it the same > time uart dead or something? do you have any inputs on sanity testing > of typical panels, if yes please share. Sorry, I do not rememebr the details to help you here. Maybe module unload and then manipulating the panel in /sys/ would do the trick. Sam _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel