[PATCH] fix-glamofb-flicker-72hz-refresh.patch
Andy Green
andy at openmoko.com
Mon Mar 10 17:45:54 CET 2008
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Somebody in the thread at some point said:
> This comes out to 72.5Hz refresh, I think there are a few more lines
> than in U-Boot but it is still a big jump. Maybe someone can test this
> for flicker, I didn't know a good way to fill areas of solid colour with
> what is in the rootfs in Linux.
I tested it, seems fine.
Good old Linux just lets you cat to /dev/fb0 to crap on the framebuffer,
you have to love the Unix Way. There's probably a better way but ash
can also create the test file:
echo -n -e \\012\\0240 >>/tmp/img
gets you the first 0xa00a and you can cat it onto itself using
increasing sized chunks until it is big enough to cat on to /dev/fb0.
- -Andy
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