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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - `vblank_mode=0 DRI_PRIME=1 glxgears` will introduce GPU lock up on Intel Graphics [8086:5917] + AMD Graphics [1002:6665] (rev c3)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103370#c36">Comment # 36</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - `vblank_mode=0 DRI_PRIME=1 glxgears` will introduce GPU lock up on Intel Graphics [8086:5917] + AMD Graphics [1002:6665] (rev c3)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103370">bug 103370</a>
from <span class="vcard"><a class="email" href="mailto:tsunghanliu@gmail.com" title="Robert Liu <tsunghanliu@gmail.com>"> <span class="fn">Robert Liu</span></a>
</span></b>
<pre>(In reply to Alex Deucher from <a href="show_bug.cgi?id=103370#c33">comment #33</a>)
<span class="quote">> I think Sonny fixed this. It was due to using the wrong firmware.
> [ 1.827060] [drm] initializing kernel modesetting (HAINAN 0x1002:0x6665
> 0x1028:0x0844 0xC3). This chip should be using radeon/banks_k_2_smc.bin smc
> firmware. Is that available on the test system and kernel?</span >
The firmware radeon/banks_k_2_smc.bin is on the test system.
With Ubuntu kernel 4.4.0-101-generic, I am not pretty sure the radeon driver is
using this firmware.
With Ubuntu kernel 4.13.0-16-generic, I tried both amdgpu and radeon drivers,
but the system hang. as soon as the system hang, the amdgpu_pm_info shows
'invalid dpm profile 15'.
(In reply to Alex Deucher from <a href="show_bug.cgi?id=103370#c34">comment #34</a>)
<span class="quote">> The following commits are relevant:
> abb2e3c1ce64c8bba678973800c34ea1dc97c42c
> 6458bd4dfd9414cba5804eb9907fe2a824278c34
> ef736d394e85b1bf1fd65ba5e5257b85f6c82325
> 4e6e98b1e48c9474aed7ce03025ec319b941e26e</span >
These commits would be already included in Ubuntu kernel 4.13.0-16-generic.
(In reply to Alex Deucher from <a href="show_bug.cgi?id=103370#c35">comment #35</a>)
<span class="quote">> Does reverting a628392cf03e0eef21b345afbb192cbade041741 fix the issue?</span >
Removing this commit does not fix the issue.
BTW, with 4.13.0-16-generic, I change the max_sclk in drm/radeon/si_dpm.c (what
we did with Ubuntu kernel 4.4.0-101-generic) from 75000 to 65000, but still met
the hang issue.</pre>
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