> I think the videocore > firmware must have changed from BGR to RGB some time since I last > looked. I will look into this.
Yes, someone on the netbsd mailing list noticed (Jan 2015): > Newer Raspberry Pi firmware has changed the framebuffer from BGR to RGB. > The method we use to set the pixel order (vcprop set pixel order) does not > seem to work, nor does querying the pixel order (vcprop get pixel order). > > The firmware passes this information to the kernel by adding a > "bcm2708_fb.fbswap" kernel cmdline arg. 0=BGR, 1=RGB. ... It turns out that the interface 9pi used for querying framebuffer depth is also now broken. Setting framebuffer_depth=N in config.txt used to work for changing the pixel format, now it doesn't. Sadly there's been a history of the pi firmware interface quietly changing behind the scenes. Making a corresponding quiet change to their linux kernel seems to be considered sufficient documentation. Sigh.
