On Tue, 2008.12.16, 351, Tony Lindgren wrote: > * Jarkko Nikula <jarkko.nik...@nokia.com> [081215 23:26]: > > On Mon, 15 Dec 2008 13:14:32 -0800 "ext Tony Lindgren" <t...@atomide.com> > > wrote: > > > Well you need to make sure the serial clocks are not enabled. Kevin > > > has some patches for that in his pm branch. So you'll most likely want > > > to use his whole pm branch. > > > > > > Also, you need to make sure you have sleep while idle enabled: > > > > > > # echo 1 > /sys/power/sleep_while_idle > > > > > > It used to work, but I have not tried for six months or so. > > > > > How did you disable the LCD and FB clocks? Does > > xserver-xorg-video-fbdev from Debian (it works!) do necessary steps with > > omap fb driver or is xomap required? > > Oh, I just tested that sleep-while-idle worked when fb was blanked. I > had a script that forced the LCD off via /sys, sorry don't remember > the path now. Will be also heading to catch a plane in few hours, may > not be able to check it right now.
'echo 3 > /sys/class/graphics/fb0/blank' turns off the LCD, if that is what you mean.
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