<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Severe tearing and display corrupting when using SNA"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110245">110245</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Severe tearing and display corrupting when using SNA
</td>
</tr>
<tr>
<th>Product</th>
<td>xorg
</td>
</tr>
<tr>
<th>Version</th>
<td>git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>Driver/intel
</td>
</tr>
<tr>
<th>Assignee</th>
<td>chris@chris-wilson.co.uk
</td>
</tr>
<tr>
<th>Reporter</th>
<td>nvaert1986@hotmail.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Dear sir/miss,
I'm using a Lenovo ThinkPad P52 (Intel Core i7-8750H) with the latest 1.22 UEFI
firmware and have severe screen tearing and display corruption when using the
xf86-video-intel driver. When I'm using the latest stable driver version and
the situation is sometimes unworkable, because the screen simply goes blank and
can't even revert back to the TTY after a while (I've got no display at all).
When I'm using the latest GIT version the driver is stable, but I've got severe
tearing and artifacts (square cubes in red / greenish in particular). I've
tried both DRI 2 and DRI 3, but that doesn't make a difference. The situation
is stable when using the modesetting driver, but then I can't use my external
displays, as it's hard-wired to the NVIDIA chip. The same goes for uxa driver,
it doesn't allow me to use intel-virtual-output, so sna is the only option for
me. (I'm making use of bumblebee / bbswitch and intel-virtual-output) This can
especially be observed when browsing websites.
I'm running Gentoo Linux with kernel 4.19.27 with xorg-server-1.20.3. If
there's anything additional you need, please let me know</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
</ul>
</body>
</html>