Messages in this thread | | | Date | Fri, 15 Mar 2013 02:33:11 -0700 | Subject | Re: [Intel-gfx] i915 black screen introduced by ACPI changes | From | Chris Li <> |
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On Fri, Mar 15, 2013 at 12:29 AM, Jani Nikula <jani.nikula@linux.intel.com> wrote:
> Fun. The BIOS seems to ask for zero backlight. Maybe it means something > else for Windows 8. White is the new black or something.
I did some experiment, I go to intel_backlight directory. It show brightness is 4648, but actual_brightness is 0. Then I do "echo 4648 > brightness", the screen actually come back to light. X window function properly.
However, if I go to suspend and resume. It is black screen again.
If I use the Fn+Brightness to adjust the brightness. It seems the ACPI brightness is set to lowest. One press of "Fn+Brightness up" will give me about 10% of the brightness. It does not feel like white is the new black.
Chris
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