Wake from sleep kinda broken-ish? (ThinkPad Carbon X1 6th gen)

[Andriy Gapon]

On 16/09/2020 10:05, Warner Losh wrote:
> 
> 
> On Wed, Sep 16, 2020 at 12:31 AM Andriy Gapon <avg at freebsd.org
> <mailto:avg at freebsd.org>> wrote:
> 
>     On 15/09/2020 23:13, Eirik Øverby wrote:
>     > On 9/15/20 9:50 PM, Andriy Gapon wrote:
>     >> On 15/09/2020 22:36, Eirik Øverby wrote:
>     >>> Now, since I updated from r365358 to r365688, I have not once been able
>     to wake from sleep.
>     >>
>     >> Is that the only thing that changed?
>     >> Any port / package upgrades?
>     >
>     > There have been updates to packages, yes - but it didn't even occur to me
>     that these could impact the resume process at such an early stage. Not sure
>     which that would be; obviously the drm module has been rebuilt each time I
>     upgraded, but I don't have any other kernel modules installed from packages.
> 
>     Yes, I specifically had drm modules in mind.
> 
> 
> I too can report this for my Lenovo Yoga running code as of September 13, but
> with manu's latest drm...  It used to work fine, but my last build on the system
> was from May. Most likely a new panic in that code path, but I've not chased
> down further...

One thing to check is to set debug.acpi.suspend_bounce=1 before suspending.
This will run suspend (and then resume) methods of all drivers just like for a
normal suspend, but will skip the actual ACPI suspend.

-- 
Andriy Gapon