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From: Hans de Goede <hansg@kernel.org>
To: Luna Jernberg <droidbittin@gmail.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	lee@kernel.org, Jani Nikula <jani.nikula@linux.intel.com>,
	intel-gfx-bugs@lists.freedesktop.org,
	Mikael Eriksson <mikael_eriksson@miffe.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Re: Linux 7.1-rc1
Date: Wed, 29 Apr 2026 14:24:55 +0200	[thread overview]
Message-ID: <a9cbfa0b-de40-4138-b121-c128f95220ff@kernel.org> (raw)
In-Reply-To: <CADo9pHgDuPZSERcLB6T86mXgcLNNQyKX_p3LnmfT+oRBZHoD_g@mail.gmail.com>

Hi Luna,

Thank you for testing the rc kernels.

On 29-Apr-26 09:33, Luna Jernberg wrote:
> Hard to show but backlight turns on with one and not the other

I see an image on both pictures, so to me it looks like the backlight
is on in both cases otherwise the image would not be visible at all.

I guess what you mean is that the backlight is less bright in one
image vs the other image ?

Have you tried changing the brightness with the brightness slider
in the top right gnome shell system menu (which is open in one
your 2 screenshots) ?

What is the output of:

ls -l /sys/class/backlight/

With the working 7.0.2 kernel ?

And what is the output of the same command with the non working
7.1-rc1 kernel ?

Regards,

Hans





  parent reply	other threads:[~2026-04-29 12:24 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-26 21:50 Linux 7.1-rc1 Linus Torvalds
2026-04-28  3:38 ` Luna Jernberg
2026-04-28 15:15   ` Linus Torvalds
2026-04-28 18:11     ` Luna Jernberg
2026-04-28 18:46       ` Linus Torvalds
2026-04-28 19:37         ` Rafael J. Wysocki
2026-04-29  6:12           ` Andy Shevchenko
2026-04-29  7:18             ` Luna Jernberg
     [not found]               ` <CADo9pHgDuPZSERcLB6T86mXgcLNNQyKX_p3LnmfT+oRBZHoD_g@mail.gmail.com>
2026-04-29 12:24                 ` Hans de Goede [this message]
2026-04-29 12:32                   ` Luna Jernberg
2026-04-29  8:45             ` Hans de Goede
2026-04-29  8:47               ` Luna Jernberg
2026-04-29 10:51                 ` Andy Shevchenko
2026-04-29 10:55                   ` Luna Jernberg
2026-04-29 11:56                     ` Rafael J. Wysocki
2026-04-29 14:12                       ` Jani Nikula
2026-04-30  3:11                         ` Luna Jernberg

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