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#1 2019-07-28 18:54:52

Mate0001
New Member
From: United States
Registered: 2019-07-28
Posts: 1

Brightness Issues

I'm having trouble with my brightness settings I'm not able to change the brightness and I have looked online for a bit now and haven't found anything helpful for my problem

---Mod edit: added [ code ] tags---

00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15d0
	Subsystem: Hewlett-Packard Company Device 84ae
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Device 15d1
	Subsystem: Hewlett-Packard Company Device 84ae
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1452
00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15d3
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15d3
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15d3
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1452
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15db
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15dc
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61)
	Subsystem: Hewlett-Packard Company FCH SMBus Controller
	Kernel driver in use: piix4_smbus
	Kernel modules: i2c_piix4, sp5100_tco
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
	Subsystem: Hewlett-Packard Company FCH LPC Bridge
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15e8
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15e9
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ea
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15eb
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ec
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ed
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ee
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ef
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
	Subsystem: Hewlett-Packard Company RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
	Kernel driver in use: r8169
	Kernel modules: r8169
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device d723
	Subsystem: Hewlett-Packard Company Device 8319
	Kernel driver in use: rtl8723de
	Kernel modules: rtl8723de
04:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Device 15dd (rev c5)
	Subsystem: Hewlett-Packard Company Device 84ae
04:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device 15de
	Subsystem: Hewlett-Packard Company Device 84ae
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel
04:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Device 15df
	Subsystem: Hewlett-Packard Company Device 84ae
04:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15e0
	Subsystem: Hewlett-Packard Company Device 84ae
	Kernel driver in use: xhci_hcd
	Kernel modules: xhci_pci
04:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15e1
	Subsystem: Hewlett-Packard Company Device 84ae
	Kernel driver in use: xhci_hcd
	Kernel modules: xhci_pci
04:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] Device 15e2
	Subsystem: Hewlett-Packard Company Device 84ae
04:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Device 15e3
	Subsystem: Hewlett-Packard Company Device 84ae
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel
05:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 61)
	Subsystem: Hewlett-Packard Company FCH SATA Controller [AHCI mode]
	Kernel driver in use: ahci
	Kernel modules: ahci

Last edited by damo (2019-08-01 15:27:44)

Offline

#2 2019-08-01 15:33:42

damo
....moderator....
Registered: 2015-08-20
Posts: 5,006

Re: Brightness Issues

My solution for a similar issue on my laptop uses a bash script, and a text file to hold the current setting. The script uses xrandr to set the brightness, and keybinds to increase/decrease the brightness.
NB: minimal error-checking in this script!

#!/bin/bash
##
## brightness

BRIGHTNESS="$HOME/.config/mon-brightness.rc"

if [[ -f $BRIGHTNESS ]];then
    VAL=$(<$BRIGHTNESS)
else
    VAL=1.0
    echo $VAL > $BRIGHTNESS
fi

if [[ $1 = plus ]];then
    VAL=$(awk -v "VAL=$VAL" 'BEGIN { print VAL + 0.1 }')
elif [[ $1 = minus ]];then
    VAL=$(awk -v "VAL=$VAL" 'BEGIN { print VAL - 0.1 }')
else
    notify-send -t 3000 "Use 'brightness plus/minus'"
    exit 1
fi

echo $VAL > $BRIGHTNESS

xrandr --output DVI-D-0 --brightness $VAL --output HDMI-0 --brightness $VAL

keybinds in rc.xml:

    <!-- SCREEN BRIGHTNESS -->
    <keybind key="C-F9">
      <action name="Execute">
        <command>brightness plus</command>
      </action>
    </keybind>
    <keybind key="C-F8">
      <action name="Execute">
        <command>brightness minus</command>
      </action>
    </keybind>

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