Radeon HD 7570M: drm: deep frustration with r339186

On 06/10/2018 04:16, Pete Wright wrote:
>
> On 10/5/18 6:34 PM, Graham Perrin wrote:
>> On 23/09/2018 08:09, Graham Perrin wrote:
>>
>>> Re: Suspend, resume, UEFI, CSM, drm-stable-kmod and drm-next-kmod with Radeon HD 7570M
>>> … better without drm-next-kmod; and (as expected, given the package message) drm-stable-kmod has known problems with UEFI.
>> Now (with r339186) it seems that drm-next-kmod is the only usable option.
>>
>> However, I'm sorry to say:
>>
>> - it does feel regressive, compared to working without drm-next-kmod with earlier versions of -CURRENT.
>>
>> I can no longer find a way to reliably suspend (sleep) the notebook.
>
> hey Graham - I'm struggling with suspend/resume issues as well on my end with recent 12-ALPHA releases.  

Thanks, I followed threads such as <https://lists.freebsd.org/pipermail/freebsd-current/2018-September/071408.html>.

Also followed <https://lists.freebsd.org/pipermail/freebsd-current/2018-August/070831.html> for drm / drm2 removal in 12,  so I was prepared for some worsening, but unprepared for the current situation. 


> can you verify that you can suspend/resume without loading the radeonkms.ko …

I can not verify, sorry folks.

My sense of things earlier this morning:

- without a load of radeonkms.ko it is impossible to get a (visible, multi-user) command line

– and so, it's impossible to proceed to manually load any additional module.


> what was the last version of CURRENT you were able to suspend/resume with?

r339174, as far as I can tell.

That, with care to use _neither_ drm-stable-kmod _nor_ drm-next_kmod.


> i believe johannes lundberg is working on a fix for this issue.

Hurrah :-)

If it helps to diagnose the underlying cause(s): at one point this morning I'm almost certain that I found myself

- with drm-next-kmod without an installation of drm-kmod

– and I could not understand how that occurred, because a little earlier it seemed that drm-next-kmod depends upon drm-kmod.

----

Installation of drm-stable-kmod requires removal of drm-kmod. True? (I assume that drm-stable-kmod is still unstable with UEFI for my hardware, but I thought it worth trying.)

Thanks, and I might hand around in IRC …