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<body><span class="vcard"><a class="email" href="mailto:lakshminarayana.vudum@intel.com" title="Lakshmi <lakshminarayana.vudum@intel.com>"> <span class="fn">Lakshmi</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Warning PID: 1150 at drivers/gpu/drm/i915/intel_cdclk.c:835"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109078">bug 109078</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>REOPENED
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<td>NEEDINFO
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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Warning PID: 1150 at drivers/gpu/drm/i915/intel_cdclk.c:835"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109078#c16">Comment # 16</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Warning PID: 1150 at drivers/gpu/drm/i915/intel_cdclk.c:835"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109078">bug 109078</a>
from <span class="vcard"><a class="email" href="mailto:lakshminarayana.vudum@intel.com" title="Lakshmi <lakshminarayana.vudum@intel.com>"> <span class="fn">Lakshmi</span></a>
</span></b>
<pre>(In reply to Valerio Vanni from <a href="show_bug.cgi?id=109078#c15">comment #15</a>)
<span class="quote">> >Valerio, I couldn't find the motherboard you describe. Do you mean the B360M-A?
> >
> > <a href="https://www.newegg.com/Product/Product.aspx?Item=N82E16813119086">https://www.newegg.com/Product/Product.aspx?Item=N82E16813119086</a>
>
> Yes, I typed it wrong.
>
>
> >Things that I would try:
> >
> > - eliminate hardware as a root cause
> > - check for bios update
>
> BIOS is 1602, updated at Novembre. Now I see that there's an updated
> version, I'll try immediately.
>
> > - verify that RAM passes memcheck
>
> I'll try this too. After I built the machine, I did and it was ok.
>
> >What is it about the error message that causes you to think this is a graphics >bug? The stack trace makes me think there is something wrong with power >management.
>
> I suspected it from the first line
> WARNING: CPU: 1 PID: 1150 at drivers/gpu/drm/i915/intel_cdclk.c:835
> skl_get_cdclk+0x211/0x250 [i915]
>
> Where in stack trace do you find power management issue?
> I'm not very good at analyize stack trace, as I said i focused on the first
> lines.
>
>
> >The symptoms (won't wake up) seem to be similar too, although from >your >description, it doesn't sound like the machine is asleep.
>
> But perhaps they are not related.
>
> Sometimes (but even less frequently) the machine starts up (power led on)
> but with blank screen, no response to ping etc.
> I'm not able to say if it stops at BIOS or during linux boot because it
> usually happens when I'm on another machine with a kvm switch. I'm on
> another machine, I power on this, after some time I point the kvm switch on
> this machine and I find it dead.
>
> I have to fix my serial port bracket, because it has a wrong pinout for
> thism MB. Perhaps with serial console I can see something on serial port, if
> Linux boot has at least started.
>
> When I see this warning, instead, the machine is alive and (seems to be)
> working.</span >
Any further updates here?</pre>
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