Nokia N900: Funny screen effects, v4.14 with certain configs

Hi!

I'm trying to find common configuration for N900, N9 and N950.

...and I found that N900, at least with DRM configuration, is flakey. Depending on exact .config, and exact way I boot it (timing of 0xffff) display either works or just shows moving horizontal stripes.

In particular, ondemand cpufreq seems to be required for display to work. Ouch. Yes.

If someone knows what is going on there, or has some better understanding, let me know.

I do have other configuration that seems to work 100% of time... unfortuantely that one is useless on N9/N950.

Best regards,
Pavel

(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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