chrome and glxgears do not cooporate with non-compositing window manager

[Martin Kuba]

version: Linux Mint 17 Quiana 64-bin

In Mate desktop with Desktop settings set to disable compositing, some applications, at least:
* Google Chrome with GPU acceleration enabled (default setting)
* glxgears
do not cooperate with the window manager.

How to reproduce:
1) disable compositing in Desktop settings
2) launch glxgears
3) maximize the window of glxgears
4) try to switch to another desktop, or minimize the window

What happened: the content of the window remains displayed, only window decoration disappears

What I expected to happen instead: the window should disappear

It happens always.

Please note that Chromium has a bug report for this https://code.google.com/p/chromium/issues/detail?id=370022
but the problem is most probably not in Chromium, but in Ubuntu Trusty.

The problem has appeared after I have upgraded from Mint 16 to Mint 17, i.e. from Ubuntu Saucy to Trusty.

[Martin Kuba (makub)]

I have found a discussion
https://devtalk.nvidia.com/default/topic/751552/any-opengl-window-shown-on-all-workspaces-occludes-other-applications/
where somebody from NVIDIA wrote:

"I reproduced the problem and filed bug 1525147 for tracking. However, it does look like this is a regression in the X server between version 1.14 and 1.15 so it might not be an NVIDIA driver bug."

[Martin Kuba (makub)]

Seems to be a bug in Nvidia driver, fixed in 331.89:

"Fixed an interaction problem with xserver 1.15 that occasionally caused OpenGL applications to continue rendering when they are minimized or unmapped."

http://www.sysads.co.uk/2014/07/install-nvidia-driver-331-89-on-ubuntu-14-04/