Groups > linux.debian.kernel > #72034

Bug#977320: Updated information

From	Pablo Bianucci <pablo.bianucci@gmail.com>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#977320: Updated information
Date	2021-05-30 20:00 +0200
Message-ID	<CkxTc-Ei-3@gated-at.bofh.it> (permalink)
References	<BlIOJ-4SG-3@gated-at.bofh.it> <CjoyB-8rs-1@gated-at.bofh.it> <Cjqh4-13N-5@gated-at.bofh.it> <BlIOJ-4SG-3@gated-at.bofh.it> <Cjqh4-13N-5@gated-at.bofh.it>
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Hi Vincent!

I checked that and it did not seem to work.
I have a kernel that works, and I will go through the different options to see
what makes the backlight work. It may take a bit until I can go over all the
combinations...

Thanks!

Pablo B.

On Thu, May 27, 2021 at 05:37:42PM +0200, Vincent Blut wrote:
> Control: notfixed 977320 linux/5.10.9-1
> Control: tags -1 moreinfo
> 
> Hi Pablo,
> 
> Le 2021-05-27 09:45, Pablo Bianucci a écrit :
> > Hello,
> > 
> > I saw that the bug was fixed and tried the kernel, but it seems I did a bad
> > diagnostic. As found in https://bugs.archlinux.org/task/55024, it seems that
> > the required options for backlight control to work out-of-the-box in Cherry
> > Trail tablets are:
> > 
> > CONFIG_PWM=y
> > CONFIG_PWM_SYSFS=y
> > CONFIG_PWM_CRC=y
> > CONFIG_PWM_LPSS=m
> > CONFIG_PWM_LPSS_PCI=m
> > CONFIG_PWM_LPSS_PLATFORM=m
> 
> Among these options, only CONFIG_PWM_LPSS_PCI is missing in our kernel
> configuration. That would be nice if you could build a kernel with this option
> enabled to check that it allows you to correctly turn down the screen backlight
> on the ASUS Transformer TA102.
> 
> > I apologize for the earlier misleading report...
> > 
> > Pablo B.
> 
> Cheers,
> Vincent

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Bug#977320: Updated information Pablo Bianucci <pablo.bianucci@gmail.com> - 2021-05-27 15:50 +0200
  Bug#977320: Updated information Vincent Blut <vincent.debian@free.fr> - 2021-05-27 17:40 +0200
    Bug#977320: Updated information Pablo Bianucci <pablo.bianucci@gmail.com> - 2021-05-30 20:00 +0200

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