Workaround:
env __GL_SYNC_TO_VBLANK=0 glxgears
This seems to be why unsynchronized apps like glmark2 are unaffected by
the bug.
** Summary changed:
- Nvidia driver causes Xorg to use 100% CPU, but only when dragging glxgears,
or any window over glxgears
+ Nvidia driver causes Xorg to use
Xorg profile of when I was just moving the glxgears window.
** Attachment added: "Xorg.prof.0.pdf"
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-390/+bug/1799679/+attachment/5204859/+files/Xorg.prof.0.pdf
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Bug confirmed in two separate window managers so far:
* Mutter / Gnome Shell
* Metacity
** Description changed:
- Nvidia driver causes Xorg to use 100% CPU, but only when dragging
- glxgears, or any window over glxgears.
+ Nvidia driver causes Xorg to use 100% CPU and shows high lag and
+
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