Comment 34 for bug 1768139

Sandy Patterson, a couple follow ups:

1) Regarding kernel parameter acpi_osi=!Windows 2015 could you please advise why you need to use it, if at all? If you don't, you will want to remove it during your bisect tests to mimic a default install.

2) Regarding your Bug Description change, you change "consistently" to "it usually shows". Is this because it doesn't always cause a blank screen? If so, could you advise an approximate number (ex. 9/10 boots)?