I see this on my ThinkPad x230. I think it also triggers sometimes with docking/undocking. I did not have this issue on 14.04.
lspci -nn | grep VGA 00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09)
I see this on my ThinkPad x230. I think it also triggers sometimes with docking/undocking. I did not have this issue on 14.04.
lspci -nn | grep VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09)