Are you unable to reprduce this bug if you boot back into: 3.11.0-5.11 ? If that is the case, we should be able to perform a bisect to identify the commit that introduced this.
It might also be worthwhile to test the latest mainline kernel, which can be downloaded from: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-rc5-saucy/
Are you unable to reprduce this bug if you boot back into: 3.11.0-5.11 ? If that is the case, we should be able to perform a bisect to identify the commit that introduced this.
It might also be worthwhile to test the latest mainline kernel, which can be downloaded from: kernel. ubuntu. com/~kernel- ppa/mainline/ v3.12-rc5- saucy/
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