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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [KBL] Display Flashing Every Few Seconds"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99659">99659</a>
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<th>Summary</th>
<td>[KBL] Display Flashing Every Few Seconds
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>major
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>DRM/Intel
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>viveksjain@gmail.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=129307" name="attach_129307" title="dmesg with drm.debug=0xe">attachment 129307</a> <a href="attachment.cgi?id=129307&action=edit" title="dmesg with drm.debug=0xe">[details]</a></span>
dmesg with drm.debug=0xe
Bug description:
I've been trying to get Ubuntu 16.10 working on my custom PC with Intel core
i3-7100 (Kaby Lake), but can't get the graphics working properly. My display
flashes off regularly - about once every second if I use resolution 1920x1080,
rendering it practically unusable, and once every 5-10 seconds with resolution
800x600. I'm fairly certain it's a driver issue because everything worked fine
when I installed Windows, and also works in Ubuntu if I switch to the console
(Ctrl-Alt-F1). The frequency seems to be correlated with how much change there
is on the screen - if I don't move anything at resolution 800x600, it doesn't
blink.
I've tried suggestions online to use the latest kernel version (tried both
4.10-rc6 from mainline kernel PPA and latest from drm-intel-nightly), updated
graphics drivers from Oibaf's PPA, used Intel's Graphics Update Tool, and put
magical incantations in Xorg conf files (including turning DRI off), but
ultimately to no avail.
System environment:
-- system architecture: x86_64
-- kernel: 4.10.0-994.201702012102 (latest on
<a href="http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/">http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/</a>)
-- xserver-xorg-video-intel: 2:2.99.917+git1702011933.9fe04a~gd~y (from Oibaf)
-- Linux distribution: Ubuntu (also tried Fedora)
-- Motherboard model: Gigabyte H270N-WIFI
-- Display connector: HDMI
Additional info:
Let me know if there's anything else I should run.</pre>
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