#1419 NORM Opportu: Screen refresh rate should be dynamic to save power.

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#1419: Screen refresh rate should be dynamic to save power.
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  Reporter:  jg               |       Owner:  JordanCrouse
      Type:  enhancement      |      Status:  new         
  Priority:  normal           |   Milestone:  Opportunity 
 Component:  x window system  |     Version:              
Resolution:                   |    Keywords:  power       
  Verified:  0                |  
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Comment (by ajax):

 One thing I'm not clear on is how tolerant the DCON (and display proper)
 is to changing its refresh rate at arbitrary times.  If it's just a
 clocked FIFO then in principle there's no reason we need to wait for
 vblank, and we could go immediately to the lowest power mode as soon as we
 enter DCON.

 The current GPU only applies mode switch on vblank, so there's no real win
 to be had there.  But that's okay.  If you're animating, you want full
 speed updates, and if you're not, you want to be in the lowest possible
 power mode as soon as possible.

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Ticket URL: <http://dev.laptop.org/ticket/1419#comment:6>
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