I know this seems to be a somewhat common problem by the search for legion 5 backlight issues, but this case throws in VFIO and gpu passthrough.
I have a a Legion 5 15ACH6H with a Windows 10 / Manjaro XFCE dual boot. During the initial Manjaro install I would get no desktop display after install with the hybrid driver so I uninstalled them after loggin into a tty and the iGPU works fine using the video linux driver.
I hate having to reboot anytime I need the one windows only program in my life so I thought I would give GPU passthrough and Lookingglass a go. That works flawlessly.
My only issue now is that I have terrible battery life because the screen brightness is always 100% on the iGPU using the video-linux driver. The brightness keys / display pop up using the Fn+f5 or f6 but the actual brightness remains unchanged.
System:
Kernel: 5.14.0-0-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0
parameters: BOOT_IMAGE=/boot/vmlinuz-5.14-x86_64
root=UUID=cf49fb68-ce52-48aa-8216-652a4a594912 rw quiet apparmor=1
security=apparmor udev.log_priority=3 iommu=pt
vfio-pci.ids=10de:2560,10de:228e acpi_backlight=vendor
Desktop: Xfce 4.16.0 tk: Gtk 3.24.29 info: xfce4-panel, plank
wm: xfwm 4.16.1 vt: 7 dm: LightDM 1.30.0 Distro: Manjaro Linux
base: Arch Linux
Machine:
Type: Laptop System: LENOVO product: 82JU v: Legion 5 15ACH6H
serial: <filter> Chassis: type: 10 v: Legion 5 15ACH6H serial: <filter>
Mobo: LENOVO model: LNVNB161216 v: SDK0R32862 WIN serial: <filter>
UEFI: LENOVO v: GKCN40WW date: 07/18/2021
Battery:
ID-1: BAT0 charge: 62.9 Wh (99.1%) condition: 63.5/60.0 Wh (105.9%)
volts: 17.2 min: 15.4 model: SMP L20M4PC0 type: Li-poly serial: <filter>
status: Discharging cycles: 18
Memory:
RAM: total: 27.27 GiB used: 1.7 GiB (6.2%)
RAM Report: permissions: Unable to run dmidecode. Root privileges required.
CPU:
Info: 8-Core model: AMD Ryzen 7 5800H with Radeon Graphics bits: 64
type: MT MCP arch: Zen 3 family: 19 (25) model-id: 50 (80) stepping: 0
microcode: A50000C cache: L2: 4 MiB bogomips: 102240
Speed: 1339 MHz min/max: 1200/3200 MHz boost: enabled Core speeds (MHz):
1: 1339 2: 1825 3: 1496 4: 1219 5: 1222 6: 1259 7: 1378 8: 2029 9: 1391
10: 1544 11: 2112 12: 1403 13: 1323 14: 1297 15: 1223 16: 1962
Flags: 3dnowprefetch abm adx aes aperfmperf apic arat avic avx avx2 bmi1
bmi2 bpext cat_l3 cdp_l3 clflush clflushopt clwb clzero cmov cmp_legacy
constant_tsc cpb cpuid cqm cqm_llc cqm_mbm_local cqm_mbm_total cqm_occup_llc
cr8_legacy cx16 cx8 de decodeassists erms extapic extd_apicid f16c
flushbyasid fma fpu fsgsbase fsrm fxsr fxsr_opt ht hw_pstate ibpb ibrs ibs
invpcid irperf lahf_lm lbrv lm mba mca mce misalignsse mmx mmxext monitor
movbe msr mtrr mwaitx nonstop_tsc nopl npt nrip_save nx ospke osvw
overflow_recov pae pat pausefilter pclmulqdq pdpe1gb perfctr_core
perfctr_llc perfctr_nb pfthreshold pge pku pni popcnt pse pse36 rapl rdpid
rdpru rdrand rdseed rdt_a rdtscp rep_good sep sha_ni skinit smap smca smep
ssbd sse sse2 sse4_1 sse4_2 sse4a ssse3 stibp succor svm svm_lock syscall
tce topoext tsc tsc_scale umip v_spec_ctrl v_vmsave_vmload vaes vgif
vmcb_clean vme vmmcall vpclmulqdq wbnoinvd wdt xgetbv1 xsave xsavec
xsaveerptr xsaveopt xsaves
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: always-on, RSB filling
Type: srbds status: Not affected
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: NVIDIA GA106M [GeForce RTX 3060 Mobile / Max-Q] vendor: Lenovo
driver: vfio-pci v: 0.2 alternate: nouveau,nvidia_drm,nvidia bus-ID: 01:00.0
chip-ID: 10de:2560 class-ID: 0300
Device-2: AMD Cezanne vendor: Lenovo driver: amdgpu v: kernel
bus-ID: 06:00.0 chip-ID: 1002:1638 class-ID: 0300
Device-3: Acer Integrated Camera type: USB driver: uvcvideo bus-ID: 1-3:3
chip-ID: 5986:212b class-ID: 0e02
Display: x11 server: X.Org 1.20.13 compositor: xfwm4 v: 4.16.1 driver:
loaded: amdgpu,ati unloaded: modesetting alternate: fbdev,vesa
display-ID: :0.0 screens: 1
Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.0x11.2")
s-diag: 582mm (22.9")
Monitor-1: eDP res: 1920x1080 hz: 165 dpi: 142 size: 344x194mm (13.5x7.6")
diag: 395mm (15.5")
OpenGL: renderer: AMD RENOIR (DRM 3.42.0 5.14.0-0-MANJARO LLVM 12.0.1)
v: 4.6 Mesa 21.2.1 direct render: Yes
Audio:
Device-1: NVIDIA driver: vfio-pci v: 0.2 alternate: snd_hda_intel
bus-ID: 01:00.1 chip-ID: 10de:228e class-ID: 0403
Device-2: AMD Raven/Raven2/FireFlight/Renoir Audio Processor vendor: Lenovo
driver: N/A alternate: snd_pci_acp3x, snd_rn_pci_acp3x bus-ID: 06:00.5
chip-ID: 1022:15e2 class-ID: 0480
Device-3: AMD Family 17h HD Audio vendor: Lenovo driver: snd_hda_intel
v: kernel bus-ID: 06:00.6 chip-ID: 1022:15e3 class-ID: 0403
Sound Server-1: ALSA v: k5.14.0-0-MANJARO running: yes
Sound Server-2: JACK v: 1.9.19 running: no
Sound Server-3: PulseAudio v: 15.0 running: yes
Sound Server-4: PipeWire v: 0.3.34 running: yes
Network:
Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: Lenovo driver: r8169 v: kernel port: 3000 bus-ID: 03:00.0
chip-ID: 10ec:8168 class-ID: 0200
IF: eno1 state: down mac: <filter>
Device-2: Realtek vendor: Lenovo driver: rtw89_pci v: N/A modules: rtw89pci
port: 2000 bus-ID: 04:00.0 chip-ID: 10ec:8852 class-ID: 0280
IF: wlp4s0 state: up mac: <filter>
IP v4: <filter> type: dynamic noprefixroute scope: global
broadcast: <filter>
IP v6: <filter> type: noprefixroute scope: link
IF-ID-1: virbr0 state: down mac: <filter>
IP v4: <filter> scope: global broadcast: <filter>
WAN IP: <filter>
Bluetooth:
Device-1: Realtek Bluetooth Radio type: USB driver: btusb v: 0.8
bus-ID: 3-4:3 chip-ID: 0bda:4852 class-ID: e001 serial: <filter>
Report: rfkill ID: hci0 rfk-id: 3 state: down bt-service: enabled,running
rfk-block: hardware: no software: yes address: see --recommends
Logical:
Message: No logical block device data found.
RAID:
Message: No RAID data found.
Drives:
Local Storage: total: 1.84 TiB used: 93.79 GiB (5.0%)
SMART Message: Required tool smartctl not installed. Check --recommends
ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Western Digital
model: PC SN730 SDBPNTY-1T00-1101 size: 953.87 GiB block-size:
physical: 512 B logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD
serial: <filter> rev: 11170001 temp: 40.9 C scheme: GPT
ID-2: /dev/nvme1n1 maj-min: 259:6 vendor: Western Digital
model: WDS100T2B0C-00PXH0 size: 931.51 GiB block-size: physical: 512 B
logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter>
rev: 211210WD temp: 36.9 C scheme: GPT
Message: No optical or floppy data found.
Partition:
ID-1: / raw-size: 488.28 GiB size: 479.55 GiB (98.21%)
used: 93.75 GiB (19.6%) fs: ext4 dev: /dev/nvme0n1p5 maj-min: 259:5
label: N/A uuid: cf49fb68-ce52-48aa-8216-652a4a594912
ID-2: /boot/efi raw-size: 260 MiB size: 256 MiB (98.46%)
used: 33.7 MiB (13.1%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1
label: SYSTEM_DRV uuid: 3A82-1C35
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: 464.34 GiB fs: ntfs
label: Windows-SSD uuid: D23A83983A8377ED
ID-3: /dev/nvme0n1p4 maj-min: 259:4 size: 1000 MiB fs: ntfs label: WINRE_DRV
uuid: 407E843E7E842F2A
ID-4: /dev/nvme1n1p1 maj-min: 259:7 size: 465.72 GiB fs: ext4 label: N/A
uuid: 38d86d73-aa7f-46ba-aef8-ab376669704e
ID-5: /dev/nvme1n1p2 maj-min: 259:8 size: 465.79 GiB fs: ntfs label: N/A
uuid: 3A4C5018057310E0
USB:
Hub-1: 1-0:1 info: Full speed (or root) Hub ports: 4 rev: 2.0
speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
Hub-2: 1-2:2 info: Genesys Logic Hub ports: 3 rev: 2.1 speed: 480 Mb/s
chip-ID: 05e3:0610 class-ID: 0900
Device-1: 1-3:3 info: Acer Integrated Camera type: Video driver: uvcvideo
interfaces: 2 rev: 2.0 speed: 480 Mb/s power: 500mA chip-ID: 5986:212b
class-ID: 0e02
Device-2: 1-4:4 info: Integrated Express ITE Device(8910) type: Keyboard
driver: hid-generic,usbhid interfaces: 1 rev: 2.0 speed: 12 Mb/s
power: 100mA chip-ID: 048d:c101 class-ID: 0301
Hub-3: 2-0:1 info: Full speed (or root) Hub ports: 2 rev: 3.1 speed: 10 Gb/s
chip-ID: 1d6b:0003 class-ID: 0900
Hub-4: 2-2:2 info: Genesys Logic USB3.2 Hub ports: 3 rev: 3.2 speed: 5 Gb/s
chip-ID: 05e3:0620 class-ID: 0900
Hub-5: 3-0:1 info: Full speed (or root) Hub ports: 4 rev: 2.0
speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
Device-1: 3-3:2 info: Integrated Express ITE Device(8295) type: Keyboard,HID
driver: hid-generic,usbhid interfaces: 2 rev: 2.0 speed: 12 Mb/s
power: 100mA chip-ID: 048d:c965 class-ID: 0300
Device-2: 3-4:3 info: Realtek Bluetooth Radio type: Bluetooth driver: btusb
interfaces: 2 rev: 1.0 speed: 12 Mb/s power: 500mA chip-ID: 0bda:4852
class-ID: e001 serial: <filter>
Hub-6: 4-0:1 info: Full speed (or root) Hub ports: 2 rev: 3.1 speed: 10 Gb/s
chip-ID: 1d6b:0003 class-ID: 0900
Sensors:
Message: No sensor data found. Is lm-sensors configured?
Info:
Processes: 336 Uptime: 1h 39m wakeups: 2 Init: systemd v: 248
tool: systemctl Compilers: gcc: 11.1.0 Packages: pacman: 1195 lib: 343
flatpak: 0 Shell: Bash v: 5.1.8 running-in: xfce4-terminal inxi: 3.3.06
mhwd --listinstalled
> Installed PCI configs:
--------------------------------------------------------------------------------
NAME VERSION FREEDRIVER TYPE
--------------------------------------------------------------------------------
video-hybrid-amd-nvidia-prime 2021.07.28 false PCI
video-linux 2018.05.04 true PCI