From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 198885] amdgpu.dc=1 on CIK (R4 Mullins APU) brightness impossible to change. by Fn or "echo".
Date: Thu, 22 Feb 2018 17:01:03 +0000 [thread overview]
Message-ID: <bug-198885-2300-NgNiKTU8fa@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-198885-2300@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=198885
--- Comment #3 from Przemek (soprwa@gmail.com) ---
And here values from requested files without "amdgpu.dc=1"
"/sys/class/backlight/amdgpu_bl0 # ls -l
razem 0
-r--r--r-- 1 root root 4096 02-22 17:50 actual_brightness
-rw-r--r-- 1 root root 4096 02-22 17:50 bl_power
-rw-r--r-- 1 root root 4096 02-22 17:39 brightness
lrwxrwxrwx 1 root root 0 02-22 17:50 device -> ../../card0-eDP-1
-r--r--r-- 1 root root 4096 02-22 17:39 max_brightness
drwxr-xr-x 2 root root 0 02-22 17:50 power
lrwxrwxrwx 1 root root 0 02-22 17:39 subsystem ->
../../../../../../../class/backlight
-r--r--r-- 1 root root 4096 02-22 17:39 type
-rw-r--r-- 1 root root 4096 02-22 17:38 uevent"
"/sys/class/backlight/amdgpu_bl0 # cat brightness
23"
"/sys/class/backlight/amdgpu_bl0 # cat actual_brightness
23"
"/sys/class/backlight/amdgpu_bl0 # cat max_brightness
255"
With smaller values from previous post (with "amdgpu.dc=1" on kernel
commandline) screen is much brighter, as backlight was set almost 100%.
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next prev parent reply other threads:[~2018-02-22 17:01 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-22 13:13 [Bug 198885] New: amdgpu.dc=1 on CIK (R4 Mullins APU) brightness impossible to change. by Fn or "echo" bugzilla-daemon
2018-02-22 15:26 ` [Bug 198885] " bugzilla-daemon
2018-02-22 16:36 ` bugzilla-daemon
2018-02-22 17:01 ` bugzilla-daemon [this message]
2018-02-23 14:24 ` bugzilla-daemon
2018-02-23 16:12 ` bugzilla-daemon
2018-03-27 15:44 ` bugzilla-daemon
2018-03-28 0:20 ` bugzilla-daemon
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