Hello , I planned to run my X11 on 2nd framebuffer device /dev/fb1 in place of fb0 . I have enabled both nodes in kernel and hence I have /dev/fb0 and /dev/fb1 on board . I created a conf file <a class="dO" id=":25i" href="?ui=2&ik=15cc8556f6&view=att&th=12ce3ab65d4abd3b&attid=0.3&disp=attd&realattid=f_ghofv03f2&zw" target="_blank">22-xorg-fb1.conf</a> in /etc/X11/xorg.conf.d/ ..that I am attaching here . When I started X by running startx , I get a black screen . . I got logs as <a class="dO" id=":23p" href="?ui=2&ik=15cc8556f6&view=att&th=12ce3aa298c27345&attid=0.1&disp=attd&realattid=f_ghofoxby0&zw" target="_blank">Xfb1.log</a> . Now I replace conf file with <a class="dO" id=":25i" href="?ui=2&ik=15cc8556f6&view=att&th=12ce3ab65d4abd3b&attid=0.3&disp=attd&realattid=f_ghofv03f2&zw" target="_blank">22-xorg-fb0.conf</a> that access fb0 .. I got X11 seen on screen . Logs received as Xfb0.log .. Now I kill X , again uses /dev/fb1 , run startx , it brings X11 up ... I am not getting why , while using fb1 first time , I am getting black screen ? Do I need to modify somewhere in X11 source code ? Thanks : Umang Gupta