Hey everyone, I have tried many tutorials from the forum, but none have worked for me.
I am using a new Samsung Book 2 Pro and when a press the fn+F2 or fn+F3 to decrease or increase brightness nothing happens, except for the visual popup indicating that the brightness has changed, but the screen does not.
I tried to change the brightness using the xrandr command and it has worked, for example:
xrandr --output eDP-1 --brightness .75
I would like to make it work incrementing the brightness as expected using the fn keys.
Here’s my inxi:
System:
Kernel: 6.1.25-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 12.2.1
parameters: BOOT_IMAGE=/boot/vmlinuz-6.1-x86_64
root=UUID=a3226f60-ef86-4c4a-882a-474e45527012 rw quiet splash
udev.log_priority=3
Desktop: KDE Plasma v: 5.27.4 tk: Qt v: 5.15.8 wm: kwin_x11 vt: 1 dm: SDDM
Distro: Manjaro Linux base: Arch Linux
Machine:
Type: Laptop System: SAMSUNG product: 950XEE v: P09RGG
serial: <superuser required> Chassis: type: 10 serial: <superuser required>
Mobo: SAMSUNG model: NP950XEE-XA1BR v: SGLB420A0A-C01-G001-S0001+10.0.22621
serial: <superuser required> UEFI: American Megatrends LLC.
v: P09RGG.058.221020.XW date: 10/20/2022
Battery:
ID-1: BAT1 charge: 54.9 Wh (81.0%) condition: 67.8/66.8 Wh (101.4%)
volts: 16.1 min: 15.4 model: SAMSUNG Electronics SR Real Battery type: Li-ion
serial: <filter> status: discharging cycles: 13
Memory:
RAM: total: 15.26 GiB used: 5.46 GiB (35.8%)
RAM Report: permissions: Unable to run dmidecode. Root privileges required.
CPU:
Info: model: 12th Gen Intel Core i7-1260P bits: 64 type: MST AMCP
arch: Alder Lake level: v3 note: check built: 2021+
process: Intel 7 (10nm ESF) family: 6 model-id: 0x9A (154) stepping: 3
microcode: 0x429
Topology: cpus: 1x cores: 12 mt: 4 tpc: 2 st: 8 threads: 16 smt: enabled
cache: L1: 1.1 MiB desc: d-8x32 KiB, 4x48 KiB; i-4x32 KiB, 8x64 KiB L2: 9 MiB
desc: 4x1.2 MiB, 2x2 MiB L3: 18 MiB desc: 1x18 MiB
Speed (MHz): avg: 2263 high: 2500 min/max: 400/4700:3400 scaling:
driver: intel_pstate governor: powersave cores: 1: 2500 2: 2500 3: 626
4: 2500 5: 2500 6: 2500 7: 587 8: 2500 9: 2500 10: 2500 11: 2500 12: 2500
13: 2500 14: 2500 15: 2500 16: 2500 bogomips: 79888
Flags: 3dnowprefetch abm acpi adx aes aperfmperf apic arat
arch_capabilities arch_lbr arch_perfmon art avx avx2 avx_vnni bmi1 bmi2
bts clflush clflushopt clwb cmov constant_tsc cpuid cpuid_fault cx16 cx8
de ds_cpl dtes64 dtherm dts epb ept ept_ad erms est f16c flexpriority
flush_l1d fma fpu fsgsbase fsrm fxsr gfni hfi ht hwp hwp_act_window
hwp_epp hwp_notify hwp_pkg_req ibpb ibrs ibrs_enhanced ibt intel_pt
invpcid invpcid_single lahf_lm lm mca mce md_clear mmx monitor movbe
movdir64b movdiri msr mtrr nonstop_tsc nopl nx ospke pae pat pbe pcid
pclmulqdq pdcm pdpe1gb pebs pge pku pln pni popcnt pse pse36 pts rdpid
rdrand rdseed rdtscp rep_good sdbg sep serialize sha_ni smap smep smx
split_lock_detect ss ssbd sse sse2 sse4_1 sse4_2 ssse3 stibp syscall tm
tm2 tpr_shadow tsc tsc_adjust tsc_deadline_timer tsc_known_freq umip vaes
vme vmx vnmi vpclmulqdq vpid waitpkg x2apic xgetbv1 xsave xsavec xsaveopt
xsaves xtopology xtpr
Vulnerabilities:
Type: itlb_multihit status: Not affected
Type: l1tf status: Not affected
Type: mds status: Not affected
Type: meltdown status: Not affected
Type: mmio_stale_data status: Not affected
Type: retbleed status: Not affected
Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via
prctl
Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
sanitization
Type: spectre_v2 mitigation: Enhanced IBRS, IBPB: conditional, RSB
filling, PBRSB-eIBRS: SW sequence
Type: srbds status: Not affected
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: Intel Alder Lake-P Integrated Graphics vendor: Samsung Co
driver: i915 v: kernel arch: Gen-12.2 process: Intel 10nm built: 2021-22+
ports: active: eDP-1 empty: DP-1, DP-2, DP-3, HDMI-A-1 bus-ID: 00:02.0
chip-ID: 8086:46a6 class-ID: 0300
Device-2: Intel DG2 [Arc A350M] vendor: Samsung Co driver: i915 v: kernel
arch: Gen-12.7 code: Alchemist process: TSMC n6 (7nm) built: 2022+ pcie:
gen: 1 speed: 2.5 GT/s lanes: 1 ports: active: none empty: DP-4, DP-5,
DP-6, DP-7, HDMI-A-2, HDMI-A-3, HDMI-A-4, HDMI-A-5, HDMI-A-6
bus-ID: 04:00.0 chip-ID: 8086:5694 class-ID: 0380
Device-3: SunplusIT 1080p FHD Camera type: USB driver: uvcvideo
bus-ID: 3-6:4 chip-ID: 2b7e:c556 class-ID: 0e02 serial: <filter>
Display: x11 server: X.Org v: 21.1.8 compositor: kwin_x11 driver: X:
loaded: modesetting alternate: fbdev,vesa dri: iris gpu: i915 display-ID: :0
screens: 1
Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.00x11.22")
s-diag: 582mm (22.93")
Monitor-1: eDP-1 model: Samsung 0x4159 built: 2020 res: 1920x1080 hz: 60
dpi: 142 gamma: 1.2 size: 344x194mm (13.54x7.64") diag: 395mm (15.5")
ratio: 16:9 modes: 1920x1080
API: OpenGL v: 4.6 Mesa 23.0.2 renderer: Mesa Intel Graphics (ADL GT2)
direct-render: Yes
Audio:
Device-1: Intel Alder Lake PCH-P High Definition Audio vendor: Samsung Co
driver: sof-audio-pci-intel-tgl
alternate: snd_hda_intel,snd_sof_pci_intel_tgl bus-ID: 00:1f.3
chip-ID: 8086:51c8 class-ID: 0401
API: ALSA v: k6.1.25-1-MANJARO status: kernel-api with: aoss
type: oss-emulator tools: alsamixer,amixer
Server-1: JACK v: 1.9.22 status: off tools: N/A
Server-2: PipeWire v: 0.3.70 status: off with: wireplumber status: active
tools: pw-cli,wpctl
Server-3: PulseAudio v: 16.1 status: active tools: pacat,pactl
Network:
Device-1: Intel Alder Lake-P PCH CNVi WiFi driver: iwlwifi v: kernel
bus-ID: 00:14.3 chip-ID: 8086:51f0 class-ID: 0280
IF: wlo1 state: up mac: <filter>
IP v4: <filter> type: dynamic noprefixroute scope: global
broadcast: <filter>
IP v6: <filter> type: dynamic noprefixroute scope: global
IP v6: <filter> type: noprefixroute scope: link
IF-ID-1: br-2c9b77585d5c state: down mac: <filter>
IP v4: <filter> scope: global broadcast: <filter>
IF-ID-2: br-71b5b2650f5b state: down mac: <filter>
IP v4: <filter> scope: global broadcast: <filter>
IF-ID-3: br-a7a6cdb05f95 state: up speed: 10000 Mbps duplex: unknown
mac: <filter>
Message: Output throttled. IPs: 2; Limit: 10; Override: --limit [1-x;-1
all]
IF-ID-4: docker0 state: down mac: <filter>
Message: Output throttled. IPs: 1; Limit: 10; Override: --limit [1-x;-1
all]
IF-ID-5: veth5831aea state: up speed: 10000 Mbps duplex: full mac: <filter>
IF-ID-6: vethba9dee9 state: up speed: 10000 Mbps duplex: full mac: <filter>
WAN IP: <filter>
Bluetooth:
Device-1: Intel type: USB driver: btusb v: 0.8 bus-ID: 3-10:5
chip-ID: 8087:0033 class-ID: e001
Report: rfkill ID: hci0 rfk-id: 0 state: up address: see --recommends
Logical:
Message: No logical block device data found.
RAID:
Message: No RAID data found.
Drives:
Local Storage: total: 953.87 GiB used: 22.91 GiB (2.4%)
SMART Message: Unable to run smartctl. Root privileges required.
ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Samsung model: MZVLQ1T0HBLB-00B
size: 953.87 GiB block-size: physical: 512 B logical: 512 B speed: 31.6 Gb/s
lanes: 4 type: SSD serial: <filter> rev: FXM7AK1Q temp: 35.9 C scheme: GPT
Message: No optical or floppy data found.
Partition:
ID-1: / raw-size: 150 GiB size: 146.59 GiB (97.72%) used: 22.86 GiB (15.6%)
fs: ext4 dev: /dev/nvme0n1p7 maj-min: 259:7 label: N/A
uuid: a3226f60-ef86-4c4a-882a-474e45527012
ID-2: /boot/efi raw-size: 260 MiB size: 256 MiB (98.46%)
used: 48.6 MiB (19.0%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1
label: SYSTEM uuid: EE4F-1A89
Swap:
Alert: No swap data was found.
Unmounted:
ID-1: /dev/nvme0n1p2 maj-min: 259:2 size: 16 MiB fs: <superuser required>
label: N/A uuid: N/A
ID-2: /dev/nvme0n1p3 maj-min: 259:3 size: 785.06 GiB fs: ntfs label: N/A
uuid: F626507D265040B3
ID-3: /dev/nvme0n1p4 maj-min: 259:4 size: 850 MiB fs: ntfs
label: Windows RE tools uuid: 82DACCC7DACCB925
ID-4: /dev/nvme0n1p5 maj-min: 259:5 size: 16.71 GiB fs: ntfs
label: SAMSUNG_REC2 uuid: 46B898E0B898CFB3
ID-5: /dev/nvme0n1p6 maj-min: 259:6 size: 1024 MiB fs: vfat
label: SAMSUNG_REC uuid: 6453-12A2
USB:
Hub-1: 1-0:1 info: Hi-speed hub with single TT ports: 1 rev: 2.0
speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
Hub-2: 2-0:1 info: Super-speed hub ports: 1 rev: 3.1 speed: 20 Gb/s
chip-ID: 1d6b:0003 class-ID: 0900
Hub-3: 3-0:1 info: Hi-speed hub with single TT ports: 12 rev: 2.0
speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
Device-1: 3-3:2 info: Logitech Unifying Receiver type: Keyboard,Mouse
driver: logitech-djreceiver,usbhid interfaces: 2 rev: 2.0 speed: 12 Mb/s
power: 98mA chip-ID: 046d:c534 class-ID: 0301
Device-2: 3-5:3 info: LighTuning ETU905A80-E type: <vendor specific>
driver: N/A interfaces: 1 rev: 2.0 speed: 480 Mb/s power: 100mA
chip-ID: 1c7a:0582 class-ID: ff00 serial: <filter>
Device-3: 3-6:4 info: SunplusIT 1080p FHD Camera type: Video
driver: uvcvideo interfaces: 2 rev: 2.0 speed: 480 Mb/s power: 500mA
chip-ID: 2b7e:c556 class-ID: 0e02 serial: <filter>
Device-4: 3-10:5 info: Intel type: Bluetooth driver: btusb interfaces: 2
rev: 2.0 speed: 12 Mb/s power: 100mA chip-ID: 8087:0033 class-ID: e001
Hub-4: 4-0:1 info: Super-speed hub ports: 4 rev: 3.1 speed: 10 Gb/s
chip-ID: 1d6b:0003 class-ID: 0900
Sensors:
Src: /sys System Temperatures: cpu: 53.0 C mobo: N/A
Fan Speeds (RPM): N/A
Power: 12v: N/A 5v: 5 3.3v: N/A vbat: N/A
Info:
Processes: 379 Uptime: 37m wakeups: 5202 Init: systemd v: 252
default: graphical tool: systemctl Compilers: gcc: 12.2.1 clang: 15.0.7
Packages: pm: pacman pkgs: 1157 libs: 326 tools: pamac,yay pm: flatpak
pkgs: 0 Shell: Zsh v: 5.9 default: Bash v: 5.1.16 running-in: konsole
inxi: 3.3.26
and the ls /sys/class/backlight shows intel_backlight.