From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 203905] amdgpu:actual_brightness has unreal/wrong value
Date: Thu, 06 May 2021 10:12:10 +0000 [thread overview]
Message-ID: <bug-203905-2300-uXQr5AR5zg@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-203905-2300@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=203905
Filip Hejsek (filip.hejsek@gmail.com) changed:
What |Removed |Added
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CC| |filip.hejsek@gmail.com
--- Comment #29 from Filip Hejsek (filip.hejsek@gmail.com) ---
All the workarounds posted here are for a different bug:
https://bugzilla.kernel.org/show_bug.cgi?id=210263
There are three different problems:
- setting brightness doesn't work before showing something on display (the bug
linked above)
- actual_brightness has wrong range (this bug)
- kernel uses aux for backlight control on systems that don't support it
For the third problem, there is a patch in
https://bugzilla.opensuse.org/show_bug.cgi?id=1180749, and it seems to be
merged already. However, because there is no way yet to detect that aux
backlight doesn't work, the workaround has to be enabled with
amdgpu.aux_backlight=0 (assuming you have a kernel with the patch).
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next prev parent reply other threads:[~2021-05-06 10:12 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-15 20:02 [Bug 203905] New: amdgpu:actual_brightness has unreal/wrong value bugzilla-daemon
2019-06-17 9:44 ` [Bug 203905] " bugzilla-daemon
2019-06-17 10:48 ` bugzilla-daemon
2019-09-26 21:07 ` bugzilla-daemon
2020-02-05 5:34 ` bugzilla-daemon
2020-02-05 5:52 ` bugzilla-daemon
2020-02-09 13:33 ` bugzilla-daemon
2020-02-10 19:16 ` bugzilla-daemon
2020-07-30 6:15 ` bugzilla-daemon
2020-08-01 12:04 ` bugzilla-daemon
2020-08-03 20:13 ` bugzilla-daemon
2020-08-04 20:15 ` bugzilla-daemon
2020-08-17 9:46 ` bugzilla-daemon
2020-08-31 10:46 ` bugzilla-daemon
2020-09-01 19:07 ` bugzilla-daemon
2020-09-08 0:59 ` bugzilla-daemon
2020-09-08 1:00 ` bugzilla-daemon
2020-09-08 1:03 ` bugzilla-daemon
2020-11-23 21:02 ` bugzilla-daemon
2020-12-07 10:17 ` bugzilla-daemon
2021-02-02 14:06 ` bugzilla-daemon
2021-02-07 22:17 ` bugzilla-daemon
2021-02-08 20:47 ` bugzilla-daemon
2021-02-17 17:24 ` bugzilla-daemon
2021-02-17 17:25 ` bugzilla-daemon
2021-03-15 10:58 ` bugzilla-daemon
2021-03-25 13:58 ` bugzilla-daemon
2021-03-25 14:03 ` bugzilla-daemon
2021-03-27 8:45 ` bugzilla-daemon
2021-05-06 10:12 ` bugzilla-daemon [this message]
2021-05-06 11:50 ` bugzilla-daemon
2021-05-06 11:56 ` bugzilla-daemon
2021-05-06 13:28 ` bugzilla-daemon
2021-05-06 14:20 ` bugzilla-daemon
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