I had the same problem on mine, and I have a verdex board so I modified gumstix-custom-verdex.conf instead of the -connex.conf file, rebuilt everything and now the colors look good.
 
But...
 
When I run ts_calibrate the tiny cross that you click on to calibrate the thing is not visible, and for ts_test nothing is shown either. I tried rebuilding tslib with:
 
bitbake -c rebuild tslib
 
followed by rebuilding the image, but ts_* sti9ll don't work as before. Any ideas?
 
Marcos

 
On Sat, Apr 19, 2008 at 8:36 AM, Marc Humphreys <mhumphreys@logiclinkdesign.com> wrote:
Magnus,

You'll see the following in file
<path to
gumstix-oe>/com.gumstix.collection/conf/machine/gumstix-custom-connex.conf

.
.
.
# if you enable robostix you will need to disable both "lcd" and
"touchscreen" features #MACHINE_FEATURES  += "robostix"

MACHINE_FEATURES  += "lcd"
MACHINE_FEATURES  += "rgb16"
#MACHINE_FEATURES  += "rgb18"

MACHINE_FEATURES  += "touchscreen"
MACHINE_FEATURES  += "keyboard"
.
.
.


So simply comment out the rgb16 line and uncomment rgb18 line.
Afterwards you need to

bitbake -c rebuild gumstix-kernel

bitbake -c rebuild task-base-gumstix

bitbake -c rebuild whatever-image-you-want

then reflash the uImage and rootfs

Marc


> -----Original Message-----
> From: gumstix-users-bounces@lists.sourceforge.net [mailto:gumstix-users-
> bounces@lists.sourceforge.net] On Behalf Of Magnus Ekhall
> Sent: Saturday, April 19, 2008 4:33 AM
> To: gumstix-users@lists.sourceforge.net
> Subject: [Gumstix-users] 18bpp and directfb
>
> Hi,
>
> I see a lot of talk about 16bpp and 18bpp with directfb.
>
> I've got a consoleLCD (18bpp) and now the colors are off (they are 16bpp
> I guess).
>
> How can I build directfb with 18bpp support so that it works as before?
>
> Thanks,
> Magnus
>
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