I have a Gumstix Overo WaterSTORM COM. I am using the HDMI output. I have Linaro set up as per http://www.b1gtuna.com/2012/08/installing-linaro-image-on-gumstix-overo/. I replaced the display manager with nodm, and I am using openbox.

X is running in 16-bit color mode. I need it to run in 24- or 32-bit mode. How do I do this?

I added "-depth 24" to the X server options, but then the server doesn't start and complains (log below).

Is there some driver I have to install / load / specify somewhere or something?

Thanks,
J


[   223.584] (II) FBDEV(0): Creating default Display subsection in Screen section
    "Default Screen Section" for depth/fbbpp 24/32
[   223.585] (++) FBDEV(0): Depth 24, (--) framebuffer bpp 32
[   223.585] (==) FBDEV(0): RGB weight 888
[   223.585] (==) FBDEV(0): Default visual is TrueColor
[   223.585] (==) FBDEV(0): Using gamma correction (1.0, 1.0, 1.0)
[   223.585] (II) FBDEV(0): hardware: omapfb (video memory: 1536kB)
[   223.585] (II) FBDEV(0): checking modes against framebuffer device...
[   223.585] (II) FBDEV(0): checking modes against monitor...
[   223.602] (--) FBDEV(0): Virtual size is 1024x768 (pitch 1024)
[   223.602] (**) FBDEV(0):  Built-in mode "current": 57.6 MHz, 48.6 kHz, 61.6 Hz
[   223.603] (II) FBDEV(0): Modeline "current"x0.0   57.60  1024 1072 1104 1184  768 783 787 790 -hsync -vsync -csync (48.6 kHz)
[   223.603] (==) FBDEV(0): DPI set to (96, 96)
[   223.603] (II) Loading sub module "fb"
[   223.603] (II) LoadModule: "fb"
[   223.606] (II) Loading /usr/lib/xorg/modules/libfb.so
[   223.607] (II) Module fb: vendor="X.Org Foundation"
[   223.607]     compiled for 1.11.3, module version = 1.0.0
[   223.607]     ABI class: X.Org ANSI C Emulation, version 0.4
[   223.607] (**) FBDEV(0): using shadow framebuffer
[   223.608] (II) Loading sub module "shadow"
[   223.608] (II) LoadModule: "shadow"
[   223.620] (II) Loading /usr/lib/xorg/modules/libshadow.so
[   223.621] (II) Module shadow: vendor="X.Org Foundation"
[   223.621]     compiled for 1.11.3, module version = 1.1.0
[   223.621]     ABI class: X.Org ANSI C Emulation, version 0.4
[   223.621] (==) Depth 24 pixmap format is 32 bpp
[   223.622] (EE) FBDEV(0): FBIOPUT_VSCREENINFO succeeded but modified mode
[   223.622] (EE) FBDEV(0): mode initialization failed
[   223.622]
Fatal server error:
[   223.622] AddScreen/ScreenInit failed for driver 0
[   223.622]
[   223.622]
Please consult the The X.Org Foundation support
     at http://wiki.x.org
 for help.
[   223.623] Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[   223.623]
[   223.672]  ddxSigGiveUp: Closing log
[   223.672] Server terminated with error (1). Closing log file.