[Arm-netbook] LCD goes haywire after inactivity

Luke Kenneth Casson Leighton luke.leighton at googlemail.com
Tue Mar 30 12:32:55 BST 2010

On Tue, Mar 30, 2010 at 4:04 AM, Frans Pop <elendil at planet.nl> wrote:
> (Public reply to private mail.)
> On Monday 29 March 2010, Michael Howard wrote:
>> There is some kind of issue with the screen on the netbook with the last
>> couple of kernels/installers. At least with my netbook. If you leave it
>> without touching it for a while, it goes into what a assume is some kind
>> of power saving mode whereby the the screen blanks and the only way to
>> recover is an underside reset. It's done it now whilst I was copying the
>> pics over to  the web server.

 ahh.... it's altogether possible that the LCD has been powered off -
or brightness set to zero - and powering back on hasn't been done yet.

 the reason for _that_ may be that it is in fact u-boot that is
successfully initialising the screen (including power) and we simply
haven't got the LCD poweron sequence yet, such that when it's powered
off, it will never come back on again.


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