[Bug 65601] Lenovo T440s backlight step too large on kernel v3.13 with intel_backlight

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=65601

--- Comment #32 from Aaron Lu <aaron.lu at intel.com> ---
Sorry for replying back. Please boot into console mode and then enable
backlight debug message by:
# cd /sys/kernel/debug/dynamic_debug
# echo 'module backlight +pfmt' > control
After this, remove/attach power cord and see if you get any messages by
checking dmesg.

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