[Hardware Support] Legion Y7000P IRX10 (83NN) - Working with force=1

[huverse]

System Information

• Model: Lenovo Legion Y7000P IRX10 (2025 model)
• DMI Product Name: 83NN
• BIOS Version: S9CN19WW
• EC Chip ID: 5508
• EC Chip Version: 2b0

Environment

• OS: Arch Linux
• Kernel: 7.1.8-zen1-3-zen

Problem

The module refuses to load by default because 83NN is not in the allowlist:

[ 1393.961355] legion legion: Read identifying information: DMI_SYS_VENDOR: LENOVO; DMI_PRODUCT_NAME: 83NN; DMI_BIOS_VERSION:S9CN19WW
[ 1393.961372] legion legion: is_denied: 0; is_allowed: 0; do_load_by_list: 0; do_load: 0
[ 1393.961376] legion legion: Module not usable for this laptop because it is not in allowlist. Notify the maintainer if you want to add your device or force load with param force.
[ 1393.961378] legion legion: legion_laptop not loaded for this device
[ 1393.961380] legion legion: probe with driver legion failed with error -12

dmidecode -t system

Handle 0x0001, DMI type 1, 27 bytes
System Information
	Manufacturer: LENOVO
	Product Name: 83NN
	Version: Legion Y7000P IRX10
	Wake-up Type: Power Switch
	SKU Number: LENOVO_MT_83NN_BU_idea_FM_Legion Y7000P IRX10
	Family: Legion Y7000P IRX10

Testing with force=1

sudo make forcereloadmodule loads successfully:

[ 1643.051608] legion_laptop: Init keyboard backlight LED driver
[ 1643.052288] legion legion: Led platform::kbd_backlight renamed to platform::kbd_backlight_1 due to name collision
[ 1643.053004] legion_laptop: Init Y-Logo LED driver
[ 1643.054150] legion_laptop: Init IO-Port LED driver
[ 1643.054297] legion legion: legion_laptop loaded for this device

Feature test results (after force=1)

• Power mode: working via WMI — has custom powermode: 1, powermode: 2
• Platform profile: two profiles registered, both readable/report "balanced":
  • lenovo-wmi-gamezone
  • lenovo-legion
• Fan curve (debugfs): /sys/kernel/debug/legion/fancurve is readable and reports correct CPU/GPU temps and live fan RPM (e.g. CPU 80°C, GPU 87°C, fan1 ~18000 RPM). However the "Current fan curve in hardware" table (both direct EC read and WMI) returns all-zero point values — not sure if this reflects an actually empty/unset curve or a read issue on this model.
• LEDs: keyboard backlight, Y-Logo, and IO-Port LED drivers all initialize successfully. Note: keyboard backlight LED name collided with an existing platform::kbd_backlight class and was auto-renamed to platform::kbd_backlight_1 — might be worth a look, possibly colliding with another driver (e.g. a generic/ideapad LED class).

Request

Could you please add DMI Product Name 83NN (Legion Y7000P IRX10) to the allowlist? Everything I've tested so far works correctly with force=1. Happy to run further tests or provide more debug output if needed.

[st0nie]

Thanks for the detailed test results! Before adding 83NN/S9CN to the allowlist we need a validated config mapping, and the GKCN fallback numbers you got (fan1 ~18000 RPM garbage, all-zero fancurve tables) show the legacy v0 EC layout does not fit this board.

The likely fit is model_rxcn (used for Legion 7i Gen 10 83KY, EC id 0x5508): WMI powermode (which already works for you), and WMI3 for fan speeds/temperatures/fancurve — no direct EC writes, so it is safe to test. Could you apply this locally and report what works?

--- a/kernel_module/legion-laptop.c
+++ b/kernel_module/legion-laptop.c
@@ optimistic_allowlist[]
 	{
 		// e.g. LOQ 15IAX9E
 		.ident = "Q8CN",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 			DMI_MATCH(DMI_BIOS_VERSION, "Q8CN"),
 		},
 		.driver_data = (void *)&model_q8cn
 	},
+	{
+		// e.g. Legion Y7000P IRX10 (83NN)
+		.ident = "S9CN",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_BIOS_VERSION, "S9CN"),
+		},
+		.driver_data = (void *)&model_rxcn
+	},
 	{}
 };

Then sudo make reloadmodule (or forcereloadmodule) and post: sensors, sudo cat /sys/kernel/debug/legion/fancurve, and whether powermode/platform profile still work. If the WMI3 fancurve table shows real values, we'll add the entry upstream.

[huverse]

Follow-up: tested S9CN → model_rxcn as suggested (idle + short CPU load).

Machine

• Product: 83NN Legion Y7000P IRX10
• BIOS: S9CN19WW
• Kernel: 7.2.2-zen1-1-zen

Load

• Local allowlist: S9CN → &model_rxcn
• make clean && make, then sudo make reloadmodule (no force needed)
• dmesg: is_allowed: 1, Using configuration for system: S9CN, EC ID 0x5508, module loaded

What works

• Powermode / platform profile (WMI): works
  • powermode WMI: 2
  • platform_profile: balanced
  • choices: low-power balanced performance max-power custom
• CPU temperature (WMI3): works
  • idle ~48°C, under load ~85–88°C (matches sensors)
• Fan speed (WMI3): works and looks realistic
  • idle: 0 RPM
  • under load: WMI3 ~2000 RPM; sensors showed Fan1 ~2200 / Fan2 ~2400
  • EC still reports garbage (~18045 / ~16740) but that path is not selected

What does not work

• WMI3 fancurve table is still all zeros (idle and under load; both “hardware” and “WMI” sections, 10 points, all fields 0)
  → does not yet meet “WMI3 fancurve shows real values”
• Mini-fancurve: Unexpected value in MINIFANCURVE register: 0 / EC minifancurve on cool: error
• GPU temperature WMI3 stays 0 (dGPU likely runtime-suspended; can retest with GPU load if useful)

sensors under load (excerpt)

legion_hwmon-isa-0000
Fan 1:           2200 RPM  (max = 10000 RPM)
Fan 2:           2400 RPM  (max = 10000 RPM)
CPU Temperature:  +88.0°C
GPU Temperature:   +0.0°C
IC Temperature:   +55.0°C

fancurve debug under load (key lines)

EC Chip ID: 5508
temperature access method: 5
CPU temperature WMI3: 85
GPU temperature WMI3: 0
fan speed access method: 5
1 fanspeed WMI3: 2000
2 fanspeed WMI3: 2000
1 fanspeed EC: 18045
2 fanspeed EC: 16740
powermode WMI: 2
Current fan curve in hardware / WMI: all 10 points zero