New answers tagged graphics
Since you've already enabled backports, I'd suggest trying the latest backported kernel, 4.5.1-1~bpo8+1 as of this writing. The kernel's Intel GPU driver has been vastly improved since 3.16, and should be much more stable.
You will need to get it to load a GTK theme (the default gnome one is adawita) You can try GTK_THEME=Adwaita then the command. Have you also looked at using x2go? It often gives better performance.
First identify which glx module is in use: $ cat /var/log/Xorg.0.log | grep glx [ 3.622] (II) LoadModule: "glx" [ 3.624] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so [ 3.705] (II) Module glx: vendor="NVIDIA Corporation" In Debian 8 Jessie my solution was to remove glx-alternative-nvidia package. So after reboot: $ cat ...
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