Since I updated ubuntu to 14.04, I have some issue with chromium, the display is remanent when switching virtual desktop or appear when the application is minimized.
I found that the issue is gpu-related since when I start the browser with --disable-gpu I have not the issue.
I don't know if this issue is related to chromium new version, nvidia driver version or other thing since each of those package where upgraded during distribution upgrade ...
ii chromium-browser 34.0.1847.116-0ubuntu2 amd64 Chromium browser
ii nvidia-304 304.117-0ubuntu1 amd64 NVIDIA legacy binary driver - version 304.117
If someone have this kind of issue and know a workaround or something to try ...
--disable-gpu-compositing
flag instead of--disable-gpu
?--disable-gpu-compositing
does not fix the problem. Only--disable-gpu
or disabling 3D accleration entirely (in the VM settings) works for me.