[coreboot] Some weird phenomina related to suspension on my x230 with coreboot and cleansed ME.

[Elisenda Cuadros]

Hello,

I have the same behaviour (the screen doesn´t light after suspension) 
with Coreboot + striped ME (latest) and _kernel 4.10.9_.

But with an older kernel (4.4.5) it recovers correctly.

I didn´t try to first boot with power supply attached..

I think it was kernel related not a coreboot or ME_cleaner problem

Best regards,

Elisenda


On 21/04/2017 6:36, Persmule wrote:
>
> Hi Nicola Corna,
>
> Recently I have observed some weird phenomina related to suspension on 
> my x230 with coreboot and ME cleansed with latest me_cleaner:
>
>  1. If its first boot after flash is done on a powered expansion dock,
>     it has a high probability to fail to light the screen during
>     recovery from suspension.
>  2. If its first boot after flash is done with battery power, the
>     screen will be lit during recovery if usb3 ports has never been
>     used before suspension, otherwise it 100% fails.
>  3. If its first boot after flash is done with a power supplier
>     directly attached, the recovery from suspension can always light
>     the screen.
>
> Such "settings" are completely determined with how the first boot 
> after flash gets powered, and are memorized across power cycles, but 
> unrelated to where later boot is done, nor whether
> expansion docks are used after the first boot is DONE.
>
> I guess it may be related to the MRC cache.
>
>
> Persmule
>
>
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.coreboot.org/pipermail/coreboot/attachments/20170421/a012d73f/attachment.html>