BLack Screen while running X11 on /dev/fb1

[Michel Dänzer]

On Die, 2010-12-14 at 12:31 +0530, umang gupta wrote:
> 
> 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   22-xorg-fb1.conf
> 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 Xfb1.log . 
> 
> Now I replace conf file with 22-xorg-fb0.conf 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 ?

Is there any difference in Xorg.0.log or the output of 

        fbset -i -fb /dev/fb1

between the unsuccessful and successful attempts, or does something
appear in the dmesg output between them? ...


-- 
Earthling Michel Dänzer           |                http://www.vmware.com
Libre software enthusiast         |          Debian, X and DRI developer