Re: [PATCH] Fix AC keyboard backlight timeout on Dell XPS 13 9370.

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On Fri, 2018-06-15 at 15:16 +0000, Mario.Limonciello@xxxxxxxx wrote:
> > Thank you Mario!
> > 
> > Sure, it makes sense to restrict the quirk to firmware which is
> > known
> > to be buggy. I will be happy to do that when the issue is fixed by
> > new
> > firmware update!
> > 
> > In the meantime I've been running 4.17-rc7 with this patch added,
> > and
> > it works well for me.
> > 
> > Though not sure if this could still make it into 4.17, but would be
> > nice!
> > 
> > Best regards,
> > Timur
> 
> Timur,
> 
> I believe this behavior your encountered /may/ be resolved in FW
> 1.4.0 that was published recently.
> 
> http://www.dell.com/support/home/us/en/19/Drivers/DriversDetails?driv
> erId=3N2X8
> https://fwupd.org/lvfs/component/720/all
> 
> Thanks,
> 

Hi Mario,

Yes, it appears that the necessary token is now there as of BIOS 1.4.0
How would you like to proceed? I would suggest to leave the patch as-is 
for the sake of users who don't update their BIOS. I've looked into how
to restrict the solution for just older BIOS versions, but as far as I
could tell there is no way to express "less than 1.4.0" with DMI_MATCH.

What do you think?

Thanks & best regards,
Tim




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