[Bug 59726] [ivb (optimus) LVDS] Boots to blank screen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=59726

--- Comment #16 from hadrons123 <piruthiviraj at gmail.com> ---
7.039] (--) intel(0): found backlight control interface
/sys/class/backlight/intel_backlight            for acpi_backlight=vendor in
uxa -backlight is set to max , can be adjusted manually
 7.137] (--) intel(0): found backlight control interface
/sys/class/backlight/acpi_video1               for acpi_backlight=legacy in uxa
- backlight is set to zero, can be adjusted manually
6.872] (--) intel(0): found backlight control interface ideapad (type
'platform')                           for acpi_backlight=vendor in sna 
-backlight is set to max, cannot be adjusted manually
7.340] (--) intel(0): found backlight control interface acpi_video1 (type
'firmware')                    for acpi_backlight=legacy in sna   -backlight is
set to zero, can be adjusted manually

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