Comment 77 for bug 1236749

The problem with this bug is that it doesn't exhibit itself consistently or predictably.

On my previous laptop's Ubuntu GNOME 14.10 setup, reboots worked fine until some point (a month after installing?), at which point this behavior started happening... but only on a clean reboot. If I killed power to my laptop by force instead, extensions would stay. (This probably further confirms the hypothesis in bug 1385572.) The previous laptop was a Dell Precision M6400 with a Core 2 Duo CPU and Quadro FX 2700M graphics. I forget if I tried nVidia drivers or not.

So far, I have not seen this happen with clean reboots on my current laptop. It is a Lenovo G60-45 with the following combined CPU/GPU: "AMD A6-6310 APU with AMD Radeon R4 Graphics". I mainly use the AMD drivers due to freezing issues with mesa; I forget if this happened with mesa as well or not. This is still with Ubuntu GNOME 14.10.