Comment 30 for bug 1262388

JamesE, thank you for your comments. As the commit you just built doesn't adjust the firmware at all as noted in http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-trusty.git;a=commitdiff;h=6960a059b2c618f32fe549f13287b3d2278c09e9 the expectation is the firmware would not change, while the potential expectation is that your issue is resolved for the default firmware.

Hence, could you please return the firmware to the defaults from Ubuntu, and advise to the results? This will provide an important data point on your issue.