Hello,
Since it isn't yet on the powertop/lesswatts websites, I thought I would
mention that the 100.14.19 nVidia driver has experimental support for
ondemand vblank interrupts. It appears to work as advertised, but I
haven't been able to test for changes in power consumption yet.
The X .conf subsection for the video driver needs this line:
Option "OnDemandVBlankInterrupts" "true"
nvidia-readme snippet:
Normally, VBlank interrupts are generated on every vertical refresh of
every display device connected to the GPU(s) installed in a given
system.
This experimental option enables on-demand VBlank control, allowing the
driver to enable VBlank interrupt generation only when it is required.
This can help conserve power.
Default: off (on-demand VBlank control is disabled).
Regards,
--Kent
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