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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Dual display Lenovo IdeaPad y510p requires i915.invert_brightness=1 to not dim screen"
href="https://bugs.freedesktop.org/show_bug.cgi?id=83459">83459</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>Dual display Lenovo IdeaPad y510p requires i915.invert_brightness=1 to not dim screen
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>pietrushnic@gmail.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg CVS
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>As advised on <a href="mailto:dri-devel@lists.freedesktop.org">dri-devel@lists.freedesktop.org</a> by Jani Nikula I would like to
report that my Lenovo IdeaPad requires i915.invert_brightness=1 kernel
parameter to not dim screen after boot. According to Jani 'this is highly
unlikely to be the case on' my hardware. I use dual display with Samsung
SyncMaster 931BF, latest kernel (3.17.0-rc3+) and Debian Jessie/Sid.
[12:39:34] pietrushnic:~ $ lspci -s 00:02.0 -vmm
Slot: 00:02.0
Class: VGA compatible controller
Vendor: Intel Corporation
Device: 4th Gen Core Processor Integrated Graphics Controller
SVendor: Lenovo
SDevice: Device 3801
Rev: 06
[12:39:58] pietrushnic:~ $ lspci -s 00:02.0 -vmm -n
Slot: 00:02.0
Class: 0300
Vendor: 8086
Device: 0416
SVendor: 17aa
SDevice: 3801
Rev: 06
If you need more information I would be glad to help with debugging and
testing.
Regards,
Piotr Król</pre>
</div>
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