<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 - drm_get_device_name_for_fd is broken on FreeBSD"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103283">103283</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>drm_get_device_name_for_fd is broken on FreeBSD
</td>
</tr>
<tr>
<th>Product</th>
<td>Mesa
</td>
</tr>
<tr>
<th>Version</th>
<td>17.2
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>FreeBSD
</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>EGL/Wayland
</td>
</tr>
<tr>
<th>Assignee</th>
<td>wayland-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>greg@unrelenting.technology
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>mesa-dev@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=134848" name="attach_134848" title="patch-src_loader_loader.c">attachment 134848</a> <a href="attachment.cgi?id=134848&action=edit" title="patch-src_loader_loader.c">[details]</a></span>
patch-src_loader_loader.c
The function drm_get_device_name_for_fd in src/loader/loader.c uses
dev_node_from_fd which uses Linux-specific major/minor stuff, which does not
work correctly on FreeBSD.
Because of this, Wayland EGL clients on FreeBSD receive /dev/dri/card408
instead of /dev/dri/card0 as the device path, and fall back to software
rendering :D
The attached patch replaces the code with a call to drmGetDeviceNameFromFd2,
which is patched in our packages to work correctly
(<a href="https://github.com/freebsd/freebsd-ports/blob/master/graphics/libdrm/files/patch-xf86drm.c">https://github.com/freebsd/freebsd-ports/blob/master/graphics/libdrm/files/patch-xf86drm.c</a>).
(dev_node_from_fd is probably dead code after this patch)
Why wasn't drmGetDeviceNameFromFd2 used in the first place? Why was libdrm's
functionality duplicated?</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>