<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body><span class="vcard"><a class="email" href="mailto:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> <span class="fn">Ilia Mirkin</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - [NV118] GM108 not supported by nouveau"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89558">bug 89558</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;">Summary</td>
<td>Unknown chipset error for GeForce 840M
</td>
<td>[NV118] GM108 not supported by nouveau
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [NV118] GM108 not supported by nouveau"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89558#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [NV118] GM108 not supported by nouveau"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89558">bug 89558</a>
from <span class="vcard"><a class="email" href="mailto:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> <span class="fn">Ilia Mirkin</span></a>
</span></b>
<pre>There is presently no support in nouveau for this particular chip. However it
_ought_ to be pretty similar to the GM107, so you can just add a
case 0x118:
right above the "case 0x117:" in
drivers/gpu/drm/nouveau/core/engine/device/gm100.c (approximate path, going by
memory). In hypothetical scenario where that works fine, you still wouldn't be
able to use this for acceleration [but you would be able to use any displays
direct-attached to the controller, if any].
For acceleration, you can either grab blob fw (see
<a href="http://nouveau.freedesktop.org/wiki/NVC0_Firmware/">http://nouveau.freedesktop.org/wiki/NVC0_Firmware/</a>), or you may want to build
the (out-of-tree style) module available at
<a href="http://cgit.freedesktop.org/~darktama/nouveau">http://cgit.freedesktop.org/~darktama/nouveau</a>
which just 2 days ago gained support for GM107 acceleration without any blob
fw. All of these will require the extra "case" statement of course.
If you end up going through with any parts of this advice, let us know how it
works out. We'd love to add support for this chip, but no one on the nouveau
team presently has access to it.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>