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since a few days I'm a proud owner of a RPi Model B+ and a 2,8" RPi-Display from Watterott. HDMI output works fine, I am using a preinstalled Raspbian that boots into desktop.

I followed this tutorial to set up the display. As soon as I get to Step 3: Activate Framebuffer, the displays's backlight turns on, but nothing more. con2fbmap 1 1 does absolutely nothing, FRAMEBUFFER=/dev/fb1 startx & lets the HDMI output disappear for a few seconds, and then returns with all programs closed.

Any ideas what could be the problem? Apparently I am a rather new to the linux world.

When I use rpi-fbcp (github.com/tasanakorn/rpi-fbcp) to simply mirror the HDMI output to the display, it works, so the hardware seems to be fine.

Ti Hausmann
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1 Answers1

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Are you exactly running con2fbmap 1 1 after the display drivers are loaded?

If the desktop runs on HDMI also with the Framebuffer set to fb1, then there is an option in /usr/share/X11/xorg.conf.d/99-fbturbo.conf. Look for the line Option "fbdev" "/dev/fb0" and remove/comment it. It is this issue: https://github.com/notro/fbtft/issues/63

Andreas W.
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