WSOD solutions??

[Andy Green]

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Somebody in the thread at some point said:
| Am Do  4. Dezember 2008 schrieb Andy Green:
|> Somebody in the thread at some point said:
|>
|> | Further plans: modify driver to take down the complete LCM via LDO6
|> instead of
|> | entering deep_suspend. This seems to be the more reasonable
approach for
|> | saving power while LCM disabled anyway, and it might cure WSOD as the
|> LCM is
|> | powered up from suspend-mode the same way as on boot. Side-effects
still
|> | under investigation (sneak currents, any persistent data lost during
|> power
|> | down, timing issues for LCM coming up)
|>
|> Any reason none of this is on the Trac report?
| We decide on when to post any results to Trac. Emphasis on "results".

Interested parties internal and external likely read either kernel list
or the Trac bug

https://docs.openmoko.org/trac/ticket/1841

or both, but not really support list.  For this kind of hard to
reproduce issue, you and the guys that are working on this (Jeremy?)
need to make a "decision" to work both with customers experiencing it
and other folks internal and external who already poke at the same bug.

|> The hard reset line we operate into the LCM should make whether the
|> power to it is up in suspend moot... neither does it explain why the
|> WSOD comes with the blanking changes that are nothing to do with suspend.
| Thanks for concise summary of obvious conclusions resulting from my
previous
| posting.

But I didn't see you mention this "obvious conclusion".

I'm also surprised if there's really nothing to this temperature thing.
~ Several users told it to reliably be the case on their "bad" LCM.

BTW I already removed LCM power at suspend already a couple of days ago
in andy-tracking

http://git.openmoko.org/?p=kernel.git;a=commitdiff;h=4a116494da4e43fdd8c40c08cc0b2e9cf3fda154

- -Andy
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