Screen dimming XO1 vs XO 1.5

Paul Fox pgf at
Sun Jun 26 13:37:08 EDT 2011

daniel wrote:
 > On 26 June 2011 15:22, Kevin Gordon <kgordon420 at> wrote:
 > > Sorry, soon I will learn to use terminology correctly.  In this case, by dim
 > > I meant instant off.  :-)
 > Yep, this is a known issue - but one that we treat only with low priority.
 > Auto screen poweroff on inactivity has been implemented on XO-1 but
 > not on XO-1.5.

given you referred to #9710, i'm assuming you think kevin is seeing
DPMS.  did we reenable DPMS on XO-1?  i hadn't realized that.  i've
recommended keeping it off for some time, because it fights with powerd,
but maybe you've fixed that.

 > The XO-1 implementation is a bit questionable, that's why it is not a
 > trivial task to include it for XO-1.5.

equivalent functionality would be trivial, with a new checkbox to
reconfigure powerd to allow dimming/blanking the screen but prevent sleeping.
this would work on both platforms.


 > In future this may get easier, when we get our OLPC-specific display
 > controller driver into the kernel, and when we eventually move our
 > graphics driver into the kernel ("KMS").
 > So, I wouldn't worry about digging into this. Here is a relevant
 > ticket you could track:
 > Thanks,
 > Daniel
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 > Devel at

 paul fox, pgf at

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