Re: [Intel-gfx] i915 PSR test results and cursor lag

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Quoting Andy Lutomirski (2018-02-01 17:40:22)
> *However*, I do see one unfortunate side effect of turning on PSR.  It
> seems that, when I move my cursor a little bit after a few seconds of
> doing nothing, there seems to be a little bit of lag, as if either a
> few frames are dropped at the beginning of the motion or maybe the
> entire motion is delayed a bit.  I don't notice a similar delay when
> typing, so I'm wondering if maybe there's a minor driver bug in which
> the driver doesn't kick the panel out of PSR quite as quickly when the
> cursor is updated as it does when the framebuffer is updated.

One thing that's important know regarding the cursor is whether the
display server is using a HW cursor or SW cursor. Could you please attach
the log from the display server (or if you are using a stock
distribution that's probably enough to work out what it is using)?
-Chris
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