Public bug reported:
Hello
dmesg:
[ 0.826524] i2c_hid i2c-MSFT0001:00: supply vdd not found, using dummy
regulator
[ 0.826538] i2c_hid i2c-MSFT0001:00: supply vddl not found, using dummy
regulator
Best regards
DistroRelease: Ubuntu 20.04
Kernel: 5.4.*,5.7.*,5.8.*
Processor: AMD Ryzen 4600H
lspci:
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Renoir IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host
Bridge
00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe GPP Bridge
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe GPP Bridge
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host
Bridge
00:02.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe GPP Bridge
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host
Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCIe GPP
Bridge to Bus
00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCIe GPP
Bridge to Bus
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 51)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24:
Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24:
Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24:
Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24:
Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24:
Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24:
Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24:
Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24:
Function 7
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1f99 (rev a1)
01:00.1 Audio device: NVIDIA Corporation Device 10fa (rev a1)
02:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD
Controller SM981/PM981/PM983
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411
PCI Express Gigabit Ethernet Controller (rev 15)
04:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Renoir (rev c7)
04:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h
(Models 10h-1fh) Platform Security Processor
04:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir USB 3.1
04:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir USB 3.1
04:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD]
Raven/Raven2/FireFlight/Renoir Audio Processor (rev 01)
04:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h (Models
10h-1fh) HD Audio Controller
05:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller
[AHCI mode] (rev 81)
05:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller
[AHCI mode] (rev 81)
//lspci isn't showing touchpad
/////////////////////////////////////////////////////////////////////////////////////////////////
xinput:
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ ITE Tech. Inc. ITE Device(8910) Consumer Control id=13 [slave pointer
(2)]
⎜ ↳ MSFT0001:00 04F3:3140 Mouse id=15 [slave pointer (2)]
⎜ ↳ MSFT0001:00 04F3:3140 Touchpad id=16 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Video Bus id=8 [slave keyboard (3)]
↳ Power Button id=9 [slave keyboard (3)]
↳ Integrated Camera: Integrated C id=10 [slave keyboard (3)]
↳ ITE Tech. Inc. ITE Device(8910) Wireless Radio Control id=11 [slave
keyboard (3)]
↳ ITE Tech. Inc. ITE Device(8910) Keyboard id=12 [slave keyboard (3)]
↳ Ideapad extra buttons id=14 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=17 [slave keyboard (3)]
↳ ITE Tech. Inc. ITE Device(8910) Consumer Control id=18 [slave
keyboard (3)]
////////////////////////////////////////////////////////////////////////////////////
Under OS that can use this device (e.g. MS_win10):
Device Type: Firmware
Manufacturer: Elantech Ltd.
Location: On UEFI
UEFI\RES_{234124e9-40b7-43ef-9b5e-97470808d440}&REV_2
UEFI\RES_{234124e9-40b7-43ef-9b5e-97470808d440}
//////////////////////////////////////////////////////////////////////////////////
modify kernel source code can make this device work but not very well
can't find vendorID anywhere
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "hwinfo output"
https://bugs.launchpad.net/bugs/1890327/+attachment/5398746/+files/hwinfo
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https://bugs.launchpad.net/bugs/1890327
Title:
MSFT touchpad not working [ 0.826524] i2c_hid i2c-MSFT0001:00:
supply vdd not found, using dummy regulator
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