Kernel not recognizing touchpad Acer Swift 3

Message

jwnhy · Post by **jwnhy** » Wed Aug 10, 2022 7:35 am

Hello, I was trying to install Gentoo to my new laptop.
Since I have used Gentoo for quite a time so everything works after a few struggling.

However, I still cannot get my touchpad working, which is supposed to be a ELAN Touchpad.

Kernel continues to recognize it as a "Generic Logitech Mouse", which doesn't support two finger scrolling.

My laptop model is Acer Swift 3 2022 with a I7-1260P.

Here is my

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lspci -k

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0000:00:00.0 Host bridge: Intel Corporation Device 4621 (rev 02)
        Subsystem: Acer Incorporated [ALI] Device 1612
        Kernel driver in use: igen6_edac
        Kernel modules: igen6_edac
0000:00:02.0 VGA compatible controller: Intel Corporation Alder Lake-P Integrated Graphics Controller (rev 0c)
        Subsystem: Acer Incorporated [ALI] Alder Lake-P Integrated Graphics Controller
        Kernel driver in use: i915
0000:00:04.0 Signal processing controller: Intel Corporation Alder Lake Innovation Platform Framework Processor Participant (rev 02)
        Subsystem: Acer Incorporated [ALI] Alder Lake Innovation Platform Framework Processor Participant
0000:00:05.0 Multimedia controller: Intel Corporation Device 465d (rev 02)
        Subsystem: Acer Incorporated [ALI] Device 1612
0000:00:06.0 PCI bridge: Intel Corporation 12th Gen Core Processor PCI Express x4 Controller #0 (rev 02)
        Subsystem: Acer Incorporated [ALI] 12th Gen Core Processor PCI Express x4 Controller
        Kernel driver in use: pcieport
0000:00:07.0 PCI bridge: Intel Corporation Alder Lake-P Thunderbolt 4 PCI Express Root Port #0 (rev 02)
        Subsystem: Intel Corporation Alder Lake-P Thunderbolt 4 PCI Express Root Port
        Kernel driver in use: pcieport
0000:00:07.2 PCI bridge: Intel Corporation Alder Lake-P Thunderbolt 4 PCI Express Root Port #2 (rev 02)
        Subsystem: Intel Corporation Alder Lake-P Thunderbolt 4 PCI Express Root Port
        Kernel driver in use: pcieport
0000:00:08.0 System peripheral: Intel Corporation 12th Gen Core Processor Gaussian & Neural Accelerator (rev 02)
        Subsystem: Acer Incorporated [ALI] 12th Gen Core Processor Gaussian & Neural Accelerator
0000:00:0d.0 USB controller: Intel Corporation Alder Lake-P Thunderbolt 4 USB Controller (rev 02)
        Subsystem: Intel Corporation Alder Lake-P Thunderbolt 4 USB Controller
        Kernel driver in use: xhci_hcd
0000:00:0d.2 USB controller: Intel Corporation Alder Lake-P Thunderbolt 4 NHI #0 (rev 02)
        Subsystem: Intel Corporation Alder Lake-P Thunderbolt 4 NHI
0000:00:0d.3 USB controller: Intel Corporation Alder Lake-P Thunderbolt 4 NHI #1 (rev 02)
        Subsystem: Intel Corporation Alder Lake-P Thunderbolt 4 NHI
0000:00:0e.0 RAID bus controller: Intel Corporation Volume Management Device NVMe RAID Controller
        Subsystem: Acer Incorporated [ALI] Volume Management Device NVMe RAID Controller
        Kernel driver in use: vmd
0000:00:14.0 USB controller: Intel Corporation Alder Lake PCH USB 3.2 xHCI Host Controller (rev 01)
        Subsystem: Acer Incorporated [ALI] Alder Lake PCH USB 3.2 xHCI Host Controller
        Kernel driver in use: xhci_hcd
0000:00:14.2 RAM memory: Intel Corporation Alder Lake PCH Shared SRAM (rev 01)
        Subsystem: Acer Incorporated [ALI] Alder Lake PCH Shared SRAM
0000:00:14.3 Network controller: Intel Corporation Alder Lake-P PCH CNVi WiFi (rev 01)
        Subsystem: Rivet Networks Alder Lake-P PCH CNVi WiFi
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi
0000:00:15.0 Serial bus controller: Intel Corporation Alder Lake PCH Serial IO I2C Controller #0 (rev 01)
        Subsystem: Acer Incorporated [ALI] Alder Lake PCH Serial IO I2C Controller
        Kernel driver in use: intel-lpss
        Kernel modules: intel_lpss_pci
0000:00:15.1 Serial bus controller: Intel Corporation Alder Lake PCH Serial IO I2C Controller #1 (rev 01)
        Subsystem: Acer Incorporated [ALI] Alder Lake PCH Serial IO I2C Controller
        Kernel driver in use: intel-lpss
        Kernel modules: intel_lpss_pci
0000:00:16.0 Communication controller: Intel Corporation Alder Lake PCH HECI Controller (rev 01)
        Subsystem: Acer Incorporated [ALI] Alder Lake PCH HECI Controller
        Kernel driver in use: mei_me
        Kernel modules: mei_me
0000:00:19.0 Serial bus controller: Intel Corporation Alder Lake-P Serial IO I2C Controller #0 (rev 01)
        Subsystem: Acer Incorporated [ALI] Alder Lake-P Serial IO I2C Controller
        Kernel driver in use: intel-lpss
        Kernel modules: intel_lpss_pci
0000:00:19.1 Serial bus controller: Intel Corporation Alder Lake-P Serial IO I2C Controller #1 (rev 01)
        Subsystem: Acer Incorporated [ALI] Alder Lake-P Serial IO I2C Controller
        Kernel driver in use: intel-lpss
        Kernel modules: intel_lpss_pci
0000:00:1f.0 ISA bridge: Intel Corporation Alder Lake PCH eSPI Controller (rev 01)
        Subsystem: Acer Incorporated [ALI] Alder Lake PCH eSPI Controller
0000:00:1f.3 Multimedia audio controller: Intel Corporation Alder Lake PCH-P High Definition Audio Controller (rev 01)
        Subsystem: Acer Incorporated [ALI] Alder Lake PCH-P High Definition Audio Controller
        Kernel driver in use: sof-audio-pci-intel-tgl
0000:00:1f.4 SMBus: Intel Corporation Alder Lake PCH-P SMBus Host Controller (rev 01)
        Subsystem: Acer Incorporated [ALI] Alder Lake PCH-P SMBus Host Controller
        Kernel driver in use: i801_smbus
0000:00:1f.5 Serial bus controller: Intel Corporation Alder Lake-P PCH SPI Controller (rev 01)
        Subsystem: Acer Incorporated [ALI] Alder Lake-P PCH SPI Controller
10000:e0:06.0 System peripheral: Intel Corporation Device 09ab
10000:e0:06.2 PCI bridge: Intel Corporation 12th Gen Core Processor PCI Express x4 Controller #2 (rev 02)
        Kernel driver in use: pcieport
10000:e1:00.0 Non-Volatile memory controller: Micron Technology Inc Device 5411 (rev 01)
        Subsystem: Micron Technology Inc Device 1100
        Kernel driver in use: nvme

I have also enabled CONFIG_{LPSS, SUNRISEPOINTER, ELAN, I2C...} related kernel configs.

I hope the following is useful.

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CONFIG_MOUSE_PS2_ELANTECH=y
CONFIG_MOUSE_PS2_ELANTECH_SMBUS=y
CONFIG_MOUSE_ELAN_I2C=m
CONFIG_MOUSE_ELAN_I2C_I2C=y
# CONFIG_MOUSE_ELAN_I2C_SMBUS is not set
# CONFIG_TOUCHSCREEN_ELAN is not set
CONFIG_HID_ELAN=y

Apart from those settings, I have also set "i8042.{nomux...}" without which the "Logitech Mouse" would also disappear.

Thank you very much for you help.

user169291 · Post by **user169291** » Wed Aug 10, 2022 8:30 am

Which touchpad is it? Perhaps we are suffering from an identical problem, since you're also on Alder Lake. Mine's a 311C.

alamahant · Post by **alamahant** » Wed Aug 10, 2022 8:38 am

Hi
what is the output of

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grep CONFIG_I2C_DESIGNWARE /usr/src/linux/.config
and
grep -i input_dev /etc/portage/make.conf

jwnhy · Post by **jwnhy** » Wed Aug 10, 2022 9:09 am

alamahant wrote:Hi
what is the output of
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grep CONFIG_I2C_DESIGNWARE /usr/src/linux/.config
and
grep -i input_dev /etc/portage/make.conf

They are as follows

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CONFIG_I2C_DESIGNWARE_CORE=y
# CONFIG_I2C_DESIGNWARE_SLAVE is not set
CONFIG_I2C_DESIGNWARE_PLATFORM=y
# CONFIG_I2C_DESIGNWARE_AMDPSP is not set
# CONFIG_I2C_DESIGNWARE_BAYTRAIL is not set
# CONFIG_I2C_DESIGNWARE_PCI is not set

the libinput have been set in make.conf

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INPUT_DEVICES="synaptics libinput"

jwnhy · Post by **jwnhy** » Wed Aug 10, 2022 9:17 am

I have tried a LiveCD of EndeavourOS, the touchpad works fine on it.

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[    9.986758] input: ELAN050B:01 04F3:312B Mouse as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-16/i2c-ELAN050B:01/0018:04F3:312B.0001/input/input7
[    9.986937] input: ELAN050B:01 04F3:312B Touchpad as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-16/i2c-ELAN050B:01/0018:04F3:312B.0001/input/input9
[    9.986966] hid-generic 0018:04F3:312B.0001: input,hidraw0: I2C HID v1.00 Mouse [ELAN050B:01 04F3:312B] on i2c-ELAN050B:01
[   14.412459] input: ELAN050B:01 04F3:312B Mouse as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-16/i2c-ELAN050B:01/0018:04F3:312B.0001/input/input12
[   14.412539] input: ELAN050B:01 04F3:312B Touchpad as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-16/i2c-ELAN050B:01/0018:04F3:312B.0001/input/input14
[   14.412598] hid-multitouch 0018:04F3:312B.0001: input,hidraw0: I2C HID v1.00 Mouse [ELAN050B:01 04F3:312B] on i2c-ELAN050B:01

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⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳ ELAN050B:01 04F3:312B Mouse             	id=10	[slave  pointer  (2)]
⎜   ↳ ELAN050B:01 04F3:312B Touchpad          	id=11	[slave  pointer  (2)]

This also shows mine is a 04F3:312B?

alamahant · Post by **alamahant** » Wed Aug 10, 2022 9:34 am

This is what i get from dmesg

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dmesg | grep -i elan
[   11.142957] psmouse serio4: elantech: assuming hardware version 4 (with firmware version 0x381fa2)
[   11.158127] psmouse serio4: elantech: Synaptics capabilities query result 0x10, 0x14, 0x0e.
[   11.173971] psmouse serio4: elantech: Elan sample query result 05, 1b, 64
[   11.249487] input: ETPS/2 Elantech Touchpad as /devices/platform/i8042/serio4/input/input14

with

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INPUT_DEVICES="libinput synaptics"

and

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CONFIG_I2C_DESIGNWARE_CORE=y
CONFIG_I2C_DESIGNWARE_SLAVE=y
CONFIG_I2C_DESIGNWARE_PLATFORM=y
CONFIG_I2C_DESIGNWARE_AMDPSP=y
CONFIG_I2C_DESIGNWARE_BAYTRAIL=y
CONFIG_I2C_DESIGNWARE_PCI=y

CONFIG_MOUSE_PS2_ELANTECH=y
CONFIG_MOUSE_PS2_ELANTECH_SMBUS=y

Touchpad works fine.
I am not sure why it fails in your case.
Maybe firmware related?
Try also

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modprobe i8042

Do you have

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CONFIG_SERIO_I8042=m

jwnhy · Post by **jwnhy** » Wed Aug 10, 2022 9:57 am

alamahant wrote:This is what i get from dmesg

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dmesg | grep -i elan
[   11.142957] psmouse serio4: elantech: assuming hardware version 4 (with firmware version 0x381fa2)
[   11.158127] psmouse serio4: elantech: Synaptics capabilities query result 0x10, 0x14, 0x0e.
[   11.173971] psmouse serio4: elantech: Elan sample query result 05, 1b, 64
[   11.249487] input: ETPS/2 Elantech Touchpad as /devices/platform/i8042/serio4/input/input14

with

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INPUT_DEVICES="libinput synaptics"

and

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CONFIG_I2C_DESIGNWARE_CORE=y
CONFIG_I2C_DESIGNWARE_SLAVE=y
CONFIG_I2C_DESIGNWARE_PLATFORM=y
CONFIG_I2C_DESIGNWARE_AMDPSP=y
CONFIG_I2C_DESIGNWARE_BAYTRAIL=y
CONFIG_I2C_DESIGNWARE_PCI=y

CONFIG_MOUSE_PS2_ELANTECH=y
CONFIG_MOUSE_PS2_ELANTECH_SMBUS=y

Touchpad works fine.
I am not sure why it fails in your case.
Maybe firmware related?
Try also

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modprobe i8042

Do you have

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CONFIG_SERIO_I8042=m

I have tried those without luck.

CONFIG_SERIO_I8042=y on my side, looks like some other config forces it to do so.

alamahant · Post by **alamahant** » Wed Aug 10, 2022 12:48 pm

How about

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grep -i synaptic /usr/src/linux/.config

jwnhy · Post by **jwnhy** » Wed Aug 10, 2022 1:34 pm

alamahant wrote:How about
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grep -i synaptic /usr/src/linux/.config

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CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS=y
CONFIG_MOUSE_SYNAPTICS_I2C=y
CONFIG_MOUSE_SYNAPTICS_USB=y

Looks good to me? Is there anything that isn't supposed to be enabled?

jwnhy · Post by **jwnhy** » Wed Aug 10, 2022 2:05 pm

I solved this matter in an unreasonable way....

Just enable all CONFIG_PINCTRL_<CPU Gen> under Intel Pin Control Drivers.

Don't just enable Alderlake...

I dnk why, but I am astonished....

jwnhy · Post by **jwnhy** » Wed Aug 10, 2022 2:18 pm

More specific solution is as to enable ALL the following.

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CONFIG_PINCTRL_BAYTRAIL=y
CONFIG_PINCTRL_CHERRYVIEW=y
CONFIG_PINCTRL_LYNXPOINT=y
CONFIG_PINCTRL_INTEL=y
CONFIG_PINCTRL_ALDERLAKE=y
CONFIG_PINCTRL_BROXTON=y
CONFIG_PINCTRL_CANNONLAKE=y
CONFIG_PINCTRL_CEDARFORK=y
CONFIG_PINCTRL_DENVERTON=y
CONFIG_PINCTRL_ELKHARTLAKE=y
CONFIG_PINCTRL_EMMITSBURG=y
CONFIG_PINCTRL_GEMINILAKE=y
CONFIG_PINCTRL_ICELAKE=y
CONFIG_PINCTRL_JASPERLAKE=y
CONFIG_PINCTRL_LAKEFIELD=y
CONFIG_PINCTRL_LEWISBURG=y
CONFIG_PINCTRL_SUNRISEPOINT=y
CONFIG_PINCTRL_TIGERLAKE=y

Post by **pietinger** » Wed Aug 10, 2022 2:18 pm

jwnhy wrote:I solved this matter in an unreasonable way....

Just enable all CONFIG_PINCTRL_<CPU Gen> under Intel Pin Control Drivers.

Don't just enable Alderlake...

Have you enabled them as <M>odule ? If yes, what shows "lsmod" ? Maybe you need another module than alderlake ?

jwnhy · Post by **jwnhy** » Wed Aug 10, 2022 2:40 pm

pietinger wrote:
jwnhy wrote:I solved this matter in an unreasonable way....

Just enable all CONFIG_PINCTRL_<CPU Gen> under Intel Pin Control Drivers.

Don't just enable Alderlake...
Have you enabled them as <M>odule ? If yes, what shows "lsmod" ? Maybe you need another module than alderlake ?

Sadly, mark them as "M" doesn't work, my guess is that this detection happens in the early stage of booting.

I'm currently bisecting to locate the module needed

jwnhy · Post by **jwnhy** » Wed Aug 10, 2022 2:55 pm

After serveral rebooting, my guess is that just enabling

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CONFIG_PINCTRL_TIGERLAKE=y

is sufficient if you're using AlderLake(12 Gen)/TigerLake(11 Gen).

One possible reason for this strange case is that "AlderLake" Pinctrl Driver isn't fully ready or contains potential bugs?

Anyway, case solved.
Thanks!

Post by **pietinger** » Wed Aug 10, 2022 4:13 pm

Also, thank you back for your feedback.

Have fun with Gentoo !

user169291 · Post by **user169291** » Wed Aug 10, 2022 5:57 pm

May I ask how you figured this out? I didn't even hesitate to enable only the PINCTRL_ALDERLAKE pin controller.

jwnhy · Post by **jwnhy** » Thu Aug 11, 2022 1:05 am

user169291 wrote:May I ask how you figured this out? I didn't even hesitate to enable only the PINCTRL_ALDERLAKE pin controller.

LOL, tried everything around ELAN|SYNAPTICS|LPSS|...

Then I try to enable all related options, if not working then only keeps necessary ones...

Luckily it worked, when it comes to Pinctrl Driver.

Just one final desprerate try(if not working, I will just go get some binary kernel...)

Kernel not recognizing touchpad Acer Swift 3

Kernel not recognizing touchpad Acer Swift 3

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Solution

Solution & possible reason