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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [Baytrail-M] brightness can't be adjusted: no ASLE interrupt code"
href="https://bugs.freedesktop.org/show_bug.cgi?id=73252#c17">Comment # 17</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [Baytrail-M] brightness can't be adjusted: no ASLE interrupt code"
href="https://bugs.freedesktop.org/show_bug.cgi?id=73252">bug 73252</a>
from <span class="vcard"><a class="email" href="mailto:evawang@linpus.com" title="EvaWang <evawang@linpus.com>"> <span class="fn">EvaWang</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=99939" name="attach_99939" title="dmesg with drm.debug=0xe and removed loglevel=0">attachment 99939</a> <a href="attachment.cgi?id=99939&action=edit" title="dmesg with drm.debug=0xe and removed loglevel=0">[details]</a></span>
dmesg with drm.debug=0xe and removed loglevel=0
when press the brightness hotkey, it shows ideapad_laptop: Unkown event：15
ls /sys/class/backlight
<span class="quote">> acpi_video0 intel_backlight</span >
echo value to acpi_video0/brightness, brightness no change.(this is used for
OS.)
echo value to intel_backlight/brightness, brightness can be modified.</pre>
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