OMAP3 video rotate doesn't work until I run ts_test or ts_calibrate

[John Buckley]

Hello, 

I am running OE on the Gumstix Overo platform. 
When I modify the kernel boot args to set omapfb.rotate=1 the system boots fine and displays the splash screen properly.  When I try to run Xorg and then matchbox-window-manager I don't see the GUI pop up.  If I run ts_calibrate or ts_test then the GUI pops up instantly afterwards which must mean it is already running successfully from the previous attempt. 

I don't think it's related to saving the pointercal info because if I reboot and only run ts_test that also works and the touchscreen is already calibrate for the rotated screen.  So the previous ts_calibrate execution has stored the boot-up pointercal info properly. 

ts_test & ts_calibrate must be doing something to register the display corectly that either X or matchbox can't do by itself. 

Any ideas? 
John Buckley 
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