GPD Win Max

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Reason: Hardware table needs cleaning up to abide by Help:Laptop page guidelines#Adding hardware information. PCI/USB IDs are missing. #BIOS updates could be used as the base for a proper "Firmware" section, a "Function keys" section and "Accessibility" section is missing. (Discuss in Talk:GPD Win Max)
Hardware Bus + ID Working Bus + ID Working Bus + ID Working
Win Max Win Max 2021 Win Max 2
Video ? Yes ? Yes PCI ? Yes
Wireless ? Yes ? Yes PCI ? Yes
Ethernet ? Yes ? Yes n/a n/a
Bluetooth ? Yes ? Yes ? Yes
Audio ? Yes ? Yes ? Yes
Camera n/a n/a n/a n/a USB 058e:3864 Yes
Keyboard ? Yes ? Yes PS/2 ? Yes
Touchpad ? Yes ? Yes I2C ? Yes
Gamepad Yes Yes USB 045e:028e Yes
Touchscreen ? Yes ? Yes I2C ? Yes
Stylus n/a n/a n/a n/a n/a Yes
MicroSD ? Yes ? Yes ? Yes
SD Card n/a n/a n/a n/a ? Yes
Fingerprint n/a n/a n/a n/a USB 2541:9711 No
IMU n/a n/a n/a n/a I2C ? Yes

Models

There are several models in the GPD Win Max family, some multiple SKUs.

GPD Win Max (2020)

  • Display: 8" 1280x800
  • CPU: Intel Core i5-1037G7
  • Graphics: Intel Iris Plus 940
  • RAM: 16 GB LPDDR4x 3733
  • Storage: 512 GB PCIe M.2 NVMe SSD
  • Network: 1 GbE, Intel WiFi 6 AX, BT 5.0
  • Thunderbolt 3

GPD Win Max 2021

  • Display: 8" 1280x800
  • CPU: Intel Core i7-1195G7 / AMD Ryzen 7 4800U
  • Graphics: Intel Iris Xe G7 / AMD Radeon Vega 8
  • RAM: 16 GB LPDDR4x 4226
  • Storage: 1 TB PCIe M.2 NVMe SSD
  • Network: 1 GbE, Intel WiFi 6 AX BT 5.0
  • Thunderbolt 4 (Intel)

GPD Win Max 2 (2022)

  • Display: 10.1" 2560x1600
  • CPU: Intel Core i7-1260P / AMD Ryzen 7 6800U
  • Graphics: Intel Iris Xe / AMD Radeon 680M
  • RAM: 16/32 GB LPDDR5 6400
  • Storage: 1/2 TB PCIe 4.0 M.2 NVMe SSD
  • Network: Intel WiFi 6 AX BT 5.2
  • Thunderbolt 4 (Intel) | USB4 (AMD)

Fixes

GPD Win Max 2020/2021

Touchscreen

If you are using Xorg, create the file: /etc/X11/xorg.conf.d/99-touchscreen.conf to rotate the touchscreen. 

/etc/X11/xorg.conf.d/99-touchscreen.conf
Section "InputClass"
  Identifier    "calibration"
  MatchProduct  "Goodix Capacitive TouchScreen"
  Option        "TransformationMatrix"   "0 1 0 -1 0 1 0 0 1"
EndSection

Mute Key

The mute key does not send a release code. To fix it, create a new udev hwdb file under /etc/udev/hwdb.d/, and configure the key to trigger an automatic release event. 

/etc/udev/hwdb.d/90-gpd-rules.hwdb
evdev:atkbd:dmi:bvn*:bvr*:bd*:svnGPD:pnG1619-01:pvr*
 KEYBOARD_KEY_a0=!mute

GPD Win Max 2021

Screen rotation

This device uses a portrait screen.

If you are using Xorg, create /etc/X11/xorg.conf.d/30-monitor.conf to rotate the screen:

Note: The Identifier may be different depending on your display driver of choice (either DSI-1 (modesetting) or DSI1 (xf86-video-intel))
/etc/X11/xorg.conf.d/30-monitor.conf
	
Section "Monitor"
	
  Identifier "DSI-1"
	
  Option     "Rotate" "right"
	
EndSection

To rotate the virtual console, add fbcon:rotate=1 to the Kernel parameters.

GPD Win Max 2

Keyboard

BIOS < 1.04 and kernel > 5.18.9: the keyboard IRQ, as specified in the BIOS, is incompatible with a change made in kernel 5.18.10 targeting AMD 6000 APUs.

Consequently, the keyboard will not work without either patching the kernel or applying a DSDT override.

Kernel patch: 

kbd_irq.patch
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 510cdec375c4..c2d494784425 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -416,16 +416,6 @@ static bool acpi_dev_irq_override(u32 gsi, u8 triggering, u8 polarity,
 {
 	int i;
 
-#ifdef CONFIG_X86
-	/*
-	 * IRQ override isn't needed on modern AMD Zen systems and
-	 * this override breaks active low IRQs on AMD Ryzen 6000 and
-	 * newer systems. Skip it.
-	 */
-	if (boot_cpu_has(X86_FEATURE_ZEN))
-		return false;
-#endif
-
 	for (i = 0; i < ARRAY_SIZE(skip_override_table); i++) {
 		const struct irq_override_cmp *entry = &skip_override_table[i];

DSDT changes: 

kbd_dsdt.diff
21c21
< DefinitionBlock ("", "DSDT", 2, "ALASKA", "A M I ", 0x01072009)
---
> DefinitionBlock ("", "DSDT", 2, "ALASKA", "A M I ", 0x0107200a)
7102c7102
<                 IRQNoFlags ()
---
>                 IRQ (Level, ActiveLow, Exclusive, )
7121c7121
<                     IRQNoFlags ()
---
>                     IRQ (Level, ActiveLow, Exclusive, )

IMU (Accelerometer + Gyro)

The IMU (Bosch BMI160) is incorrectly identified in the BIOS. A DKMS patch may be applied.

Alternatively, a DSDT override may be generated with the correct part number. The aformentioned keyboard fix and following IMU fix may be combined into a single DSDT override.

DSDT changes: 

imu_dsdt.diff
21c21
< DefinitionBlock ("", "DSDT", 2, "ALASKA", "A M I ", 0x01072009)
---
> DefinitionBlock ("", "DSDT", 2, "ALASKA", "A M I ", 0x0107200a)
7214,7215c7214,7215
<             Name (_HID, "10EC5280")  // _HID: Hardware ID
<             Name (_CID, "10EC5280")  // _CID: Compatible ID
---
>             Name (_HID, "BMI0160")  // _HID: Hardware ID
>             Name (_CID, "BMI0160")  // _CID: Compatible ID

Known issues

GPD Win Max 2021 (Intel)

Deep sleep

Deep sleep is not working and there is no fix.

GPD Win Max 2

Fingerprint reader

The fingerprint reader (ChipSailing CS9711 @ USB 5.4) is, as of yet, unsupported.

USB autosuspend

On BIOS version v1.04, the USB controller may fail to enumerate devices that are newly plugged in after boot. This is due to a bug with USB suspend support and can be worked around by disabling autosuspend with the kernel parameter usbcore.autosuspend=-1.

Notes

GPD Win Max (2020) kernel requirement

The 2020 variant uses a different location for EDID that is not supported by Linux kernels prior to 5.18.

Linux kernel 5.18 or above is required for the screen to work.

BIOS updates

fwupd is not supported.

GPD provides BIOS updates via Windows executables in the following locations:

See Windows PE for instructions on how to make a bootable Windows environment to apply the updates.

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