Re: ThinkPad - suspend-to-RAM intel-x86 issues and tests

[David Brownlee <abs%absd.org@localhost>]

On Thu, 29 Nov 2018 at 06:15, Masanobu SAITOH <msaitoh%execsw.org@localhost> wrote:
>
> On 2018/11/28 22:12, SAITOH Masanobu wrote:
> >>> http://ftp.netbsd.org/pub/NetBSD/misc/abs/acpi-suspend-resume/pcidump.pre
> >>> http://ftp.netbsd.org/pub/NetBSD/misc/abs/acpi-suspend-resume/pcidump.post
> >>
> >> The diff says we should save/restore MSI table.
> >> We also should save/restore some other registers.
> >>
> >>   Give me one or two days to resolve the problem.
> >
> >   Please try the following diff:
> >
> >       http://www.netbsd.org/~msaitoh/pci-resume-20181118-0.dif
> >
> > Even if I use this change with Thinkpad X220, it doesn't recover from
> > suspend...
>
>   But, my X61 survived from suspend with this patch!

I can confirm a T420s, T430 and T530 all suspend and resume single
user or multiuser without X11 including disk and network fine with
this patch (excellent stuff!).

X11 on T420s
- Suspend and resumes fine while in X or on console with X running in
another virtual console
- The display seems to reverts to a blank console on resume into which
you can type
- Switching vtys fixes the display
- The ThinkPad touchpoint stops working on resume (but an external USB
mouse is fine)

X11 on T530
- Panics on resume if X is running (even if I then switch to the console)
drm/i915: Resetting chip after gpu hang
ufm_fault(0xffffffff8a77a0c0, 0x0, 1) -> w
fatal page fault in supervisor mode
...
at netbsd:fini_hash_table+0x88: movq 1

but this is awesome progress!

Thanks

David

DAvid