> -----Original Message----- > From: linux-fbdev-owner@xxxxxxxxxxxxxxx [mailto:linux-fbdev- > owner@xxxxxxxxxxxxxxx] On Behalf Of han jonghun > Sent: Friday, October 08, 2010 1:35 PM > To: linux-fbdev@xxxxxxxxxxxxxxx > Subject: How to handle FBs for dual monitor > > Hi, > > I have a question how to handle dual display controller which controls > FBs and LCD panel. > > If each FB only sees its own framebuffer, it does not matter. > But sometimes FBs should see the same framebuffer to support dual display. > > For example I want to use single 960 x 800 framebuffer to support two > WVGA(480x800) LCDs. > And fb0(layer0@xxxxxxxxxx) looks at the left side of framebuffer, > fb3(layer0@xxxxxxxxxx) looks at the right side of framebuffer. > In this case should I handle only single fb(/dev/fb/0) not > two(/dev/fb0, /dev/fb3)? [Senthil] I too have a similar scenario like this, and first thing comes to my mind is virtual framebuffer, but managing 2 devices memory by one virtual FB is the biggest challenge I am seeing in this. > > How can I use dual display like this ? Is there any IOCTL COMMAND to use ? > How can I bind FBs and release the FBs ? > How can desktop support the feature ? > > Can anyone help me? > > Thanks > > Best regards, > Jonhun Han. > -- > 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 -- 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
