Hi
I want to know where I could report this problem
In my laptop I can’t control the backlight (brightness), I prevously could.
yes I’ve added amdgpu.backlight=0 in grub, actually that was the line I added to have it working in 5.14
In the latests kernels (5.16.*) I even tried removing the line and nothing (I read somewhere that with newer kernels you do not need the line in grub, but that’s not the case)
As a sideffect, I can’t install the headers for my current kernel (5.14.10 - those are not available anywhere) so akmod cant rebuild nvidia’s module for it. In other words or I have brightness in igpu or the dgpu module. Of course I could enable descrete mode and have it all working but the idea is to use the dgpu when you need it not to draw icons in the desktop and it was working
I wrote about this (https://discussion.fedoraproject.org/t/brightness-control-not-working-on-5-15-kernels/73878/6?u=rscm.cl) a few weeks back but nobody could help us here, that’s why I want to know where I could report this. I like Fedora but this is a major issue for me. I’m tired to change the backlight through a command using the terminal.
installed kernels
kernel-5.16.11-200.fc35.x86_64
kernel-5.16.12-200.fc35.x86_64
kernel-5.14.10-300.fc35.x86_64
kernel cmdline
BOOT_IMAGE=/boot/vmlinuz-5.14.10-300.fc35.x86_64 root=UUID=1c1e5ff4-629c-46b0-bd2e-d57c77b40b6e ro amdgpu.backlight=0 rhgb quiet rd.driver.blacklist=nouveau modprobe.blacklist=nouveau nvidia-drm.modeset=1
systems specs
System:
Kernel: 5.14.10-300.fc35.x86_64 x86_64 bits: 64 compiler: gcc
v: 2.37-10.fc35 parameters: BOOT_IMAGE=/boot/vmlinuz-5.14.10-300.fc35.x86_64
root=UUID=1c1e5ff4-629c-46b0-bd2e-d57c77b40b6e ro amdgpu.backlight=0 rhgb
quiet rd.driver.blacklist=nouveau modprobe.blacklist=nouveau
nvidia-drm.modeset=1
Desktop: GNOME 41.4 tk: GTK 3.24.31 wm: gnome-shell
dm: GDM 41.3, LightDM 1.30.0 Distro: Fedora release 35 (Thirty Five)
Machine:
Type: Laptop System: LENOVO product: 82B1 v: Lenovo Legion 5 15ARH05H
serial: <superuser required> Chassis: type: 10 v: Lenovo Legion 5 15ARH05H
serial: <superuser required>
Mobo: LENOVO model: LNVNB161216 v: SDK0R33126 WIN
serial: <superuser required> UEFI: LENOVO v: FSCN14WW date: 08/26/2020
Battery:
ID-1: BAT0 charge: 49.0 Wh (60.0%) condition: 81.7/80.0 Wh (102.1%)
volts: 15.5 min: 15.4 model: SMP L19M4PC1 type: Li-poly serial: <filter>
status: N/A cycles: 15
CPU:
Info: model: AMD Ryzen 7 4800H with Radeon Graphics bits: 64 type: MT MCP
arch: Zen 2 family: 0x17 (23) model-id: 0x60 (96) stepping: 1
microcode: 0x8600104
Topology: cpus: 1x cores: 8 tpc: 2 threads: 16 smt: enabled cache:
L1: 512 KiB desc: d-8x32 KiB; i-8x32 KiB L2: 4 MiB desc: 8x512 KiB
L3: 8 MiB desc: 2x4 MiB
Speed (MHz): avg: 2206 high: 2797 min/max: 1400/2900 boost: disabled
scaling: driver: acpi-cpufreq governor: performance cores: 1: 2589 2: 2743
3: 1869 4: 2394 5: 2662 6: 2797 7: 2215 8: 2178 9: 2133 10: 1570 11: 2032
12: 2249 13: 1992 14: 1968 15: 2211 16: 1700 bogomips: 92623
Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
Vulnerabilities:
Type: itlb_multihit status: Not affected
Type: l1tf status: Not affected
Type: mds status: Not affected
Type: meltdown status: Not affected
Type: spec_store_bypass
mitigation: Speculative Store Bypass disabled via prctl and seccomp
Type: spectre_v1
mitigation: usercopy/swapgs barriers and __user pointer sanitization
Type: spectre_v2 mitigation: Full AMD retpoline, IBPB: conditional,
IBRS_FW, STIBP: conditional, RSB filling
Type: srbds status: Not affected
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: NVIDIA TU106M [GeForce RTX 2060 Mobile] driver: nouveau v: kernel
bus-ID: 01:00.0 chip-ID: 10de:1f15 class-ID: 0300
Device-2: AMD Renoir vendor: Lenovo driver: amdgpu v: kernel
bus-ID: 05:00.0 chip-ID: 1002:1636 class-ID: 0300
Device-3: Chicony Integrated Camera type: USB driver: uvcvideo
bus-ID: 3-3:2 chip-ID: 04f2:b6c2 class-ID: 0e02 serial: <filter>
Display: wayland server: X.Org 1.21.1.4 compositor: gnome-shell driver:
loaded: amdgpu note: n/a (using device driver) - try sudo/root
display-ID: :0 screens: 1
Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x286mm (20.0x11.3")
s-diag: 583mm (23")
Monitor-1: XWAYLAND0 res: 1920x1080 hz: 144 dpi: 143
size: 340x190mm (13.4x7.5") diag: 389mm (15.3")
OpenGL:
renderer: AMD RENOIR (DRM 3.42.0 5.14.10-300.fc35.x86_64 LLVM 13.0.0)
v: 4.6 Mesa 21.3.7 direct render: Yes
Audio:
Device-1: NVIDIA TU106 High Definition Audio driver: snd_hda_intel
v: kernel bus-ID: 01:00.1 chip-ID: 10de:10f9 class-ID: 0403
Device-2: AMD ACP/ACP3X/ACP6x Audio Coprocessor vendor: Lenovo
driver: N/A alternate: snd_pci_acp3x, snd_rn_pci_acp3x bus-ID: 05:00.5
chip-ID: 1022:15e2 class-ID: 0480
Device-3: AMD Family 17h/19h HD Audio vendor: Lenovo
driver: snd_hda_intel v: kernel bus-ID: 05:00.6 chip-ID: 1022:15e3
class-ID: 0403
Sound Server-1: ALSA v: k5.14.10-300.fc35.x86_64 running: yes
Sound Server-2: PulseAudio v: 15.0 running: no
Sound Server-3: PipeWire v: 0.3.47 running: yes
Network:
Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: Lenovo driver: r8169 v: kernel port: 2000 bus-ID: 03:00.0
chip-ID: 10ec:8168 class-ID: 0200
IF: eno1 state: down mac: <filter>
Device-2: Intel Wi-Fi 6 AX200 driver: iwlwifi v: kernel bus-ID: 04:00.0
chip-ID: 8086:2723 class-ID: 0280
IF: wlp4s0 state: up mac: <filter>
Bluetooth:
Device-1: Intel AX200 Bluetooth type: USB driver: btusb v: 0.8
bus-ID: 5-3:3 chip-ID: 8087:0029 class-ID: e001
Report: rfkill ID: hci0 rfk-id: 2 state: up address: see --recommends
Drives:
Local Storage: total: 476.94 GiB used: 239.2 GiB (50.2%)
SMART Message: Unable to run smartctl. Root privileges required.
ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Samsung
model: MZALQ512HALU-000L2 size: 476.94 GiB block-size: physical: 512 B
logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter>
rev: BL2QFXV7 temp: 30.9 C scheme: GPT
Partition:
ID-1: / raw-size: 27.94 GiB size: 27.33 GiB (97.83%)
used: 17.94 GiB (65.6%) fs: ext4 dev: /dev/nvme0n1p2 maj-min: 259:2
ID-2: /boot/efi raw-size: 512 MiB size: 511 MiB (99.80%)
used: 89.8 MiB (17.6%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1
ID-3: /home raw-size: 310.63 GiB size: 304.75 GiB (98.11%)
used: 221.17 GiB (72.6%) fs: ext4 dev: /dev/nvme0n1p5 maj-min: 259:5
Swap:
Kernel: swappiness: 60 (default) cache-pressure: 100 (default)
ID-1: swap-1 type: zram size: 8 GiB used: 0 KiB (0.0%) priority: 100
dev: /dev/zram0
Sensors:
System Temperatures: cpu: 34.2 C mobo: N/A
Fan Speeds (RPM): N/A
GPU: device: nouveau temp: N/A device: amdgpu temp: 34.0 C
Info:
Processes: 364 Uptime: 19m wakeups: 1 Memory: 15 GiB used: 2.98 GiB (19.9%)
Init: systemd v: 249 runlevel: 5 target: graphical.target tool: systemctl
Compilers: gcc: 11.2.1 Packages: note: see --pkg flatpak: 46 Shell: Bash
v: 5.1.8 running-in: terminator inxi: 3.3.12
/etc/default/grub (first portion)
GRUB_DEFAULT="saved"
#GRUB_DEFAULT=0
# menu countdown hidden
GRUB_TIMEOUT_STYLE=menu
GRUB_TIMEOUT=2
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_CMDLINE_LINUX_DEFAULT="rhgb quiet rd.driver.blacklist=nouveau modprobe.blacklist=nouveau nvidia-drm.modeset=1"
GRUB_CMDLINE_LINUX="amdgpu.backlight=0"