<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body>
<p>
<div>
<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#c23">Comment # 23</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:aaron.lu@intel.com" title="Aaron Lu <aaron.lu@intel.com>"> <span class="fn">Aaron Lu</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=73252#c22">comment #22</a>)
<span class="quote">> apci_listen result:
>
> video/brightnessdown BRTDN 00000087 00000000
> video/brightnessdown BRTDN 00000087 00000000 K
> video/brightnessup BRTUP 00000086 00000000
> video/brightnessup BRTUP 00000086 00000000 K</span >
OK, you get the event. I think the only thing you need is to add:
video.use_native_backlight=1 to kernel cmdline and then your hotkey should
work.
But of course, if the i915 irq handler can be modified to handle opregion
requests, the acpi video interface could probably also work.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>