Comment 4 for bug 1186959

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Jussi Pakkanen (jpakkane) wrote : Re: Regression: Intel graphics fails when bringing monitor out of sleep

I tried the upstream kernel and could not reproduce the issue by making the monitor sleep 10 times in a row. The standard Ubuntu kernel has been broken all the time (though the issue only manifests every now and then).

So either that patch alone is not sufficient or I just had poor luck in trying to reproduce the bug with an upstream kernel.