<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body><span class="vcard"><a class="email" href="mailto:yann.argotti@intel.com" title="yann <yann.argotti@intel.com>"> <span class="fn">yann</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [VLV, backlight] Backlight Brighness not linear"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94813">bug 94813</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>NEEDINFO
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [VLV, backlight] Backlight Brighness not linear"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94813#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [VLV, backlight] Backlight Brighness not linear"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94813">bug 94813</a>
from <span class="vcard"><a class="email" href="mailto:yann.argotti@intel.com" title="yann <yann.argotti@intel.com>"> <span class="fn">yann</span></a>
</span></b>
<pre>(In reply to Egbert Eich from <a href="show_bug.cgi?id=94813#c0">comment #0</a>)
<span class="quote">> Created <span class=""><a href="attachment.cgi?id=122698" name="attach_122698" title="kernel log w drm.debug=0x6">attachment 122698</a> <a href="attachment.cgi?id=122698&action=edit" title="kernel log w drm.debug=0x6">[details]</a></span>
> kernel log w drm.debug=0x6
>
> We've received a report that the backlight brightness behaves non-linear on
> a VLV
> (PCI DevID: 0x0f31) with kernel 4.5 or any eariler kernel. Driver seems to
> use the vlv_*_backlight() functions.
>
> The brightness range is: 0 - 7812.
> Written to /sys/class/backlight/intel_backlight/brignness 0 and 7812 give
> black, 1 and 4687 both give full brightness.</span >
We seem to have neglected the bug a bit, apologies.
Egbert Eich, since There were improvements pushed in kernel that will benefit
to your system, so please re-test with latest kernel and mark as REOPENED if
you can reproduce (and attach fresh gpu error dump & kernel log) and RESOLVED/*
if you cannot reproduce.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
<li>You are the assignee for the bug.</li>
<li>You are the QA Contact for the bug.</li>
</ul>
</body>
</html>