[Bug 64859] [HSW ULT]Resume from S3 result in system reboot, with warm boot

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=64859

--- Comment #4 from Paulo Zanoni <przanoni at gmail.com> ---
(In reply to comment #2)
> (In reply to comment #1)
> > We seem to have a pile of "hsw ult only" bugs. Are those all on the same
> > machine?
> >
> 
> No, they don't seem to happen on the same machine. To this issue, it happens
> on machine which info followed:
> HSW ULT: C0 stepping 1 (id=0x0a26, rev 09),cpu MHz:1400 GT3（0x20) 1100MHz 
> 
> I also tested it on another hsw ult machine, but can't reproduce, which info
> followed:
> HSW ULT: B0 stepping (id=0x0a16, rev 03), CPU 0.80GHz, GT2（0x10) 600MHz; 
> 

Could this be related with the BIOS version? What's the BIOS version of the
machine that doesn't work?


> > Paulo can you please confirm whether this is supposed to work on ult or not
> > (I don't have a machine myself to test)?

The C stepping ULT machine I have here suspends and resumes fine (S3) on
today's drm-intel-next-queued.


> By the way, when I removed i915 and retested it, this issue still there.

Instead of "removing" i915, what happens if you completely blacklist i915
(i.e., never load it)? If the problem still happens, then it's not the fault of
the graphics driver.

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