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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - skl_guc is not loaded"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95161">95161</a>
</td>
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<tr>
<th>Summary</th>
<td>skl_guc is not loaded
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
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<th>Version</th>
<td>XOrg git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<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>
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<th>Component</th>
<td>DRM/Intel
</td>
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>paolo.stivanin@gmail.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>I'm using Arch Linux x64 and my notebook hardware is:
CPU: i7-6700HQ
Video: Intel HD530 + Nvidia GTX 970m
With kernel 4.4.5-ARCH the Skylake GuC firmware was properly loaded:
cat /sys/kernel/debug/dri/1/i915_guc_load_status:
GuC firmware status:
path: i915/skl_guc_ver4.bin
fetch: SUCCESS
load: SUCCESS
version wanted: 4.3
version found: 4.3
GuC status 0x800330ed:
Bootrom status = 0x76
uKernel status = 0x30
MIA Core status = 0x3
Scratch registers:
0: 0x0
1: 0x0
2: 0x0
3: 0x5f5e100
4: 0x600
5: 0x0
6: 0x0
7: 0x0
8: 0x11
9: 0x0
10: 0x0
11: 0x0
12: 0x0
13: 0x0
14: 0x0
15: 0x0
but with kernel 4.5.2-ARCH the proprietary firmware is no longer loaded:
GuC firmware status:
path: (null)
fetch: NONE
load: NONE
version wanted: 4.3
version found: 0.0
header: offset is 0; size = 0
uCode: offset is 0; size = 0
RSA: offset is 0; size = 0
GuC status 0x00000001:
Bootrom status = 0x0
uKernel status = 0x0
MIA Core status = 0x0
Scratch registers:
0: 0x0
1: 0x0
2: 0x0
3: 0x0
4: 0x0
5: 0x0
6: 0x0
7: 0x0
8: 0x0
9: 0x0
10: 0x0
11: 0x0
12: 0x0
13: 0x0
14: 0x0
15: 0x0
dmesg |grep -i skl
[ 0.000000] ACPI: DMAR 0x000000005F8399E8 0000A8 (v01 INTEL SKL
00000001 INTL 00000001)
[ 3.966878] [drm] Finished loading i915/skl_dmc_ver1.bin (v1.26)
I have tried also:
- recompiling kernel 4.5, but nothing changed;
- compiling kernel 4.6-rc5, but nothing changed;
- compiling kernel drm-intel-nightly, but nothing changed (this one is using
skl_guc_ver6, which I have under /lib/firmware/i915)
- compiling kernel 4.5 and 4.6-rc5 with skl_guc_ver6, but nothing changed
- compiling linux-next, but nothing changed</pre>
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