Same happen with Ubuntu 14.04.3 64 bit, I had 14.04.2 x86 and worked fine with graphic controller "Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)" but when updated to a 64 bit due to notebook capabilities just did not worked...
Same happen with Ubuntu 14.04.3 64 bit, I had 14.04.2 x86 and worked fine with graphic controller "Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)" but when updated to a 64 bit due to notebook capabilities just did not worked...