can openmoko be in suspend and keep the backlight on?
lars at metafoo.de
Wed Nov 25 18:33:32 CET 2009
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Nils Faerber wrote:
> Lars-Peter Clausen schrieb:
>> Timo Juhani Lindfors wrote:
>>> Hi, just out of curiosity, is it possible to suspend the main
>>> cpu but still keep the display backlight on? (I have no
>>> practical use for this, it would be useful only if we could
>>> keep screen contents visible too).
>> Yes it could be done, but whould be quite hackish. For screen
>> content the glamo needs to be running too.
> And glamo gets the contents from where? The DRAM? The DRAM cannot
> go into self-refresh and thus the CPU suspend mode only saves very
> little power.
Nope. At least not form the main memory the glamo has it's own memory.
- - Lars
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