Public bug reported:

I have two identical Xeon desktops with identical monitors. They are
running different software:

Ubuntu 16.04: stellarium 0.14.3-1
Ubuntu 17.10: stellarium 0.16.0-1

On both machines when I drag the sky the counter at the bottom of the
screen shows 59-60 FPS. However on the latter machine the picture
stutters visibly (like it's really 30FPS/20FPS/15FPS).

It doesn't seem to matter whether I use Xorg or Wayland, Gnome Shell or
Unity7. The stuttery result is the same. I've tried other OpenGL apps
and none of them seem to have this problem. Only Stellarium 0.16.0.

** Affects: stellarium
     Importance: Undecided
         Status: New

** Affects: stellarium (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: performance

** Tags added: performance

** Description changed:

- I have two identical desktops with identical monitors. They are running
- different software:
+ I have two identical Xeon desktops with identical monitors. They are
+ running different software:
  
  Ubuntu 16.04: stellarium 0.14.3-1
  Ubuntu 17.10: stellarium 0.16.0-1
  
  On both machines when I drag the sky the counter at the bottom of the
  screen shows 59-60 FPS. However on the latter machine the picture
  stutters badly (like it's really 30FPS/20FPS/15FPS).
  
  It doesn't seem to matter whether I use Xorg or Wayland, Gnome Shell or
  Unity7. The stuttery result is the same. I've tried other OpenGL apps
  and none of them seem to have this problem. Only Stellarium 0.16.0.

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https://bugs.launchpad.net/bugs/1726279

Title:
  Stellarium performance regression (visibly stuttering)

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