https://bugzilla.kernel.org/show_bug.cgi?id=63111
Bug ID: 63111
Summary: i915 video: Initial brightness is zero
Product: ACPI
Version: 2.5
Kernel Version: 3.11
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Video
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Created attachment 111171
--> https://bugzilla.kernel.org/attachment.cgi?id=111171&action=edit
dmidecode
Hi, ACPI Developers!
The problem is that on my HP 250 G1 initial brightness of video is zero:
$ cat /sys/class/backlight/acpi_video0/brightness
0
$ cat /sys/class/backlight/intel_backlight/brightness
0
This can be fixed with video.use_bios_initial_backlight=0 parameter advised by
Jani Nikula here:
https://bugs.freedesktop.org/show_bug.cgi?id=70256
He directed me to your bugzilla.
Regards,
Kirill
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