From: bugzilla-daemon@kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 221827] Backlight regression with 7.1.6
Date: Tue, 04 Aug 2026 11:23:52 +0000 [thread overview]
Message-ID: <bug-221827-2300-a83E2zbWsZ@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-221827-2300@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=221827
--- Comment #2 from Raymond Jay Golo (rjgolo@gmail.com) ---
(In reply to The Linux kernel's regression tracker (Thorsten Leemhuis) from
comment #1)
> (In reply to Raymond Jay Golo from comment #0)
> > Upon upgrading to 7.1.6, backlight at 100% is set to dimmest level.
>
> @Mario, this is apparently caused by the following change of yours that was
> backported to 7.1.y: f1b5d8f9cc54ae ("drm/amd/display: Fix backlight
> max_brightness to match exported range") [v7.2-rc4, v7.1.6 (1191285ecb4233),
> v6.18.42]
>
> @Raymond: This might be a general problem or something specific to the
> backport. Testing 7.2-rc6 or later is thus advised. You might also want to
> attach dmesg files separately from a working and a broken kernel, as they
> most likely will be helpful for debugging.
I'll try compiling next weekend as I currently use this laptop for work.
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next prev parent reply other threads:[~2026-08-04 11:23 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-03 13:12 [Bug 221827] New: Backlight regression with 7.1.6 bugzilla-daemon
2026-08-03 13:13 ` [Bug 221827] " bugzilla-daemon
2026-08-04 8:48 ` bugzilla-daemon
2026-08-04 11:23 ` bugzilla-daemon [this message]
2026-08-04 12:22 ` bugzilla-daemon
2026-08-04 12:22 ` bugzilla-daemon
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