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<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_RESOLVED bz_closed"
title="RESOLVED FIXED - [VLV, backlight] Backlight Brighness not linear"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94813">bug 94813</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEEDINFO
</td>
<td>RESOLVED
</td>
</tr></table>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [VLV, backlight] Backlight Brighness not linear"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94813#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [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 yann from <a href="show_bug.cgi?id=94813#c1">comment #1</a>)
<span class="quote">> (In reply to Egbert Eich from <a href="show_bug.cgi?id=94813#c0">comment #0</a>)
> > 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.
>
> 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.</span >
Timeout - assuming resolved+fixed.
If problem still persist with the latest kernels (preferable drm-tip from
git://anongit.freedesktop.org/git/drm-tip), reopen this bug with latest logs as
attachments.</pre>
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