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I have a keyboard connected to an HP U28 4K monitor connected to my ThinkPad T14s via USB C.
When I connect the keyboard directly to the laptop, I can wake it up from suspend with no problem, but in the keyboard via monitor configuration it doesn't wake up.
I'm not sure if this is an issue that can be fixed on the OS side of things. I checked all config options for the monitor and BIOS and did not find anything useful.
I tried to enable wakeup for all relevant devices via the udev rules. I have the following rule:
# cat /etc/udev/rules.d/50-wake-on-ext-keyboard.rules
ACTION=="add", SUBSYSTEM=="usb", DRIVERS=="usb", ATTRS{idVendor}=="046a", ATTRS{idProduct}=="c098", ATTR{power/wakeup}="enabled", ATTR{driver/7-1.2/power/wakeup}="enabled"
ACTION=="add", SUBSYSTEM=="usb", DRIVERS=="usb", ATTRS{idVendor}=="03f0", ATTRS{idProduct}=="0610", ATTR{power/wakeup}="enabled", ATTR{driver/7-1/power/wakeup}="enabled"
ACTION=="add", SUBSYSTEM=="usb", DRIVERS=="usb", ATTRS{idVendor}=="046a", ATTRS{idProduct}=="c098", ATTR{power/wakeup}="enabled", ATTR{driver/9-1.2/power/wakeup}="enabled"
ACTION=="add", SUBSYSTEM=="usb", DRIVERS=="usb", ATTRS{idVendor}=="03f0", ATTRS{idProduct}=="0610", ATTR{power/wakeup}="enabled", ATTR{driver/9-1/power/wakeup}="enabled"
ACTION=="add", SUBSYSTEM=="usb", DRIVERS=="usb", ATTRS{idVendor}=="1d6b", ATTRS{idProduct}=="0002", ATTR{power/wakeup}="enabled", ATTR{driver/usb7/power/wakeup}="enabled"
ACTION=="add", SUBSYSTEM=="usb", DRIVERS=="usb", ATTRS{idVendor}=="1d6b", ATTRS{idProduct}=="0002", ATTR{power/wakeup}="enabled", ATTR{driver/usb9/power/wakeup}="enabled"The device ids correspond to keyboard, monitor, usb hub (usb7 or usb9 depending on which USB C slot I use).
I get 'enabled' for all these devices now when I do
cat /sys/bus/usb/devices/*/power/wakeupThis had no effect. Any ideas what else I could try or how I can find out if the monitor even sends a signal when the laptop is in sleep? (It does power delivery still in this state and waking up the monitor by waking up the laptop works.)
Edit (Aug 7): Just to be clear: the monitor seems to have no problem letting the keyboard signal through even when turned off. I can type with the monitor off. The laptop just does not get the wake-up signal.
Outputs of acpi/wakeup, lshw, lspci, lsusb:
# cat /proc/acpi/wakeup
Device S-state Status Sysfs node
GPP6 S0 *enabled pci:0000:00:02.2
GPP7 S0 *disabled
GP11 S0 *disabled
SWUS S4 *disabled
GP12 S0 *enabled pci:0000:00:04.1
SWUS S4 *disabled
XHC0 S3 *enabled pci:0000:33:00.3
XHC1 S3 *enabled pci:0000:33:00.4
NHI0 S0 *disabled
NHI1 S0 *enabled pci:0000:34:00.6
XHC2 S3 *enabled pci:0000:34:00.0
XHC3 S3 *enabled pci:0000:34:00.3
XHC4 S3 *enabled pci:0000:34:00.4
LID S4 *enabled platform:PNP0C0D:00
SLPB S3 *enabled platform:PNP0C0E:00# lshw -businfo -numeric
Bus info Device Class Description
============================================================
system 21CQ004TUS (LENOVO_MT_21CQ_BU_Think_FM_ThinkPad T14s Gen 3)
bus 21CQ004TUS
memory 512KiB L1 cache
memory 4MiB L2 cache
memory 16MiB L3 cache
cpu@0 processor AMD Ryzen 7 PRO 6850U with Radeon Graphics
memory 16GiB System Memory
memory 4GiB Synchronous Unbuffered (Unregistered) 6400 MHz (0.2 ns)
memory 4GiB Synchronous Unbuffered (Unregistered) 6400 MHz (0.2 ns)
memory 4GiB Synchronous Unbuffered (Unregistered) 6400 MHz (0.2 ns)
memory 4GiB Synchronous Unbuffered (Unregistered) 6400 MHz (0.2 ns)
memory 128KiB BIOS
pci@0000:00:00.0 bridge Family 17h-19h PCIe Root Complex [1022:14B5]
pci@0000:00:00.2 generic Family 17h-19h IOMMU [1022:14B6]
pci@0000:00:02.2 bridge Family 17h-19h PCIe GPP Bridge [1022:14BA]
pci@0000:01:00.0 wlan0 network QCNFA765 Wireless Network Adapter [17CB:1103]
pci@0000:00:02.4 bridge Family 17h-19h PCIe GPP Bridge [1022:14BA]
pci@0000:02:00.0 /dev/nvme0 storage SHGP31-2000GM
hwmon4 disk NVMe disk
/dev/ng0n1 disk NVMe disk
nvme@0:1 /dev/nvme0n1 disk 2TB NVMe disk
nvme@0:1,1 /dev/nvme0n1p1 volume 1023MiB Windows FAT volume
nvme@0:1,2 /dev/nvme0n1p2 volume 1862GiB EFI partition
pci@0000:00:04.1 bridge Family 19h USB4/Thunderbolt PCIe tunnel [1022:14CD]
pci@0000:00:08.1 bridge Family 17h-19h Internal PCIe GPP Bridge [1022:14B9]
pci@0000:33:00.0 /dev/fb0 display Rembrandt [Radeon 680M] [1002:1681]
pci@0000:33:00.1 card0 multimedia Radeon High Definition Audio Controller [Rembrandt/Strix] [1002:1640]
input27 input HD-Audio Generic HDMI/DP,pcm=3
input28 input HD-Audio Generic HDMI/DP,pcm=7
input29 input HD-Audio Generic HDMI/DP,pcm=8
pci@0000:33:00.2 generic Family 19h PSP/CCP [1022:1649]
pci@0000:33:00.3 bus Rembrandt USB4 XHCI controller #3 [1022:161D]
usb@1 usb1 bus xHCI Host Controller [1D6B:2]
usb@1:3 bus USB2.0 Hub [5E3:610]
usb@1:3.1 communication Bluetooth wireless interface
usb@2 usb2 bus xHCI Host Controller [1D6B:3]
pci@0000:33:00.4 bus Rembrandt USB4 XHCI controller #4 [1022:161E]
usb@3 usb3 bus xHCI Host Controller [1D6B:2]
usb@3:3 generic Goodix USB2.0 MISC [27C6:6594]
usb@4 usb4 bus xHCI Host Controller [1D6B:3]
pci@0000:33:00.5 card2 multimedia Audio Coprocessor [1022:15E2]
pci@0000:33:00.6 card1 multimedia Family 17h/19h/1ah HD Audio Controller [1022:15E3]
input30 input HD-Audio Generic Mic
input31 input HD-Audio Generic Headphone
pci@0000:33:00.7 generic Sensor Fusion Hub [1022:15E4]
pci@0000:00:08.3 bridge Family 17h-19h Internal PCIe GPP Bridge [1022:14B9]
pci@0000:34:00.0 bus Rembrandt USB4 XHCI controller #8 [1022:161F]
usb@5 usb5 bus xHCI Host Controller [1D6B:2]
usb@5:1 multimedia Integrated Camera [4F2:B74F]
usb@6 usb6 bus xHCI Host Controller [1D6B:3]
pci@0000:34:00.3 bus Rembrandt USB4 XHCI controller #5 [1022:15D6]
usb@7 usb7 bus xHCI Host Controller [1D6B:2]
usb@8 usb8 bus xHCI Host Controller [1D6B:3]
pci@0000:34:00.4 bus Rembrandt USB4 XHCI controller #6 [1022:15D7]
usb@9 usb9 bus xHCI Host Controller [1D6B:2]
usb@9:1 bus USB2.1 Hub [3F0:610]
usb@9:1.2 input47 input Cherry GmbH CHERRY Corded Device
usb@9:1.3 input49 input Logitech USB Optical Mouse
usb@10 usb10 bus xHCI Host Controller [1D6B:3]
pci@0000:34:00.6 bus Rembrandt USB4/Thunderbolt NHI controller #2 [1022:162F]
pci@0000:00:14.0 bus FCH SMBus Controller [1022:790B]
pci@0000:00:14.3 bridge FCH LPC Bridge [1022:790E]
system Motherboard registers
system AT Real-Time Clock
system Motherboard registers
system System Board
generic PnP device LEN0071
generic PnP device LEN030b
pci@0000:00:01.0 bridge Family 17h-19h PCIe Dummy Host Bridge [1022:14B7]
pci@0000:00:02.0 bridge Family 17h-19h PCIe Dummy Host Bridge [1022:14B7]
pci@0000:00:03.0 bridge Family 17h-19h PCIe Dummy Host Bridge [1022:14B7]
pci@0000:00:04.0 bridge Family 17h-19h PCIe Dummy Host Bridge [1022:14B7]
pci@0000:00:08.0 bridge Family 17h-19h PCIe Dummy Host Bridge [1022:14B7]
pci@0000:00:18.0 bridge Rembrandt Data Fabric: Device 18h; Function 0 [1022:1679]
pci@0000:00:18.1 bridge Rembrandt Data Fabric: Device 18h; Function 1 [1022:167A]
pci@0000:00:18.2 bridge Rembrandt Data Fabric: Device 18h; Function 2 [1022:167B]
pci@0000:00:18.3 bridge Rembrandt Data Fabric: Device 18h; Function 3 [1022:167C]
pci@0000:00:18.4 bridge Rembrandt Data Fabric: Device 18h; Function 4 [1022:167D]
pci@0000:00:18.5 bridge Rembrandt Data Fabric: Device 18h; Function 5 [1022:167E]
pci@0000:00:18.6 bridge Rembrandt Data Fabric: Device 18h; Function 6 [1022:167F]
pci@0000:00:18.7 bridge Rembrandt Data Fabric: Device 18h; Function 7 [1022:1680]
power 5B10W51877
input0 input Power Button
input1 input Lid Switch
input11 input PC Speaker
input12 input TPPS/2 Elan TrackPoint
input2 input Sleep Button
input20 input ELAN901C:00 04F3:2EA3
input21 input ELAN901C:00 04F3:2EA3 UNKNOWN
input22 input ELAN901C:00 04F3:2EA3 UNKNOWN
input24 input SYNA8018:00 06CB:CE67 Mouse
input25 input SYNA8018:00 06CB:CE67 Touchpad
input3 input Power Button
input32 input keyd virtual keyboard
input33 input keyd virtual pointer
input4 input AT Translated Set 2 keyboard
input6 input Video Bus
input7 input ThinkPad Extra Buttons# lspci -DPPnn
0000:00:00.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 17h-19h PCIe Root Complex [1022:14b5] (rev 01)
0000:00:00.2 IOMMU [0806]: Advanced Micro Devices, Inc. [AMD] Family 17h-19h IOMMU [1022:14b6]
0000:00:01.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 17h-19h PCIe Dummy Host Bridge [1022:14b7] (rev 01)
0000:00:02.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 17h-19h PCIe Dummy Host Bridge [1022:14b7] (rev 01)
0000:00:02.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Family 17h-19h PCIe GPP Bridge [1022:14ba]
0000:00:02.4 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Family 17h-19h PCIe GPP Bridge [1022:14ba]
0000:00:03.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 17h-19h PCIe Dummy Host Bridge [1022:14b7] (rev 01)
0000:00:04.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 17h-19h PCIe Dummy Host Bridge [1022:14b7] (rev 01)
0000:00:04.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Family 19h USB4/Thunderbolt PCIe tunnel [1022:14cd]
0000:00:08.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 17h-19h PCIe Dummy Host Bridge [1022:14b7] (rev 01)
0000:00:08.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Family 17h-19h Internal PCIe GPP Bridge [1022:14b9] (rev 10)
0000:00:08.3 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Family 17h-19h Internal PCIe GPP Bridge [1022:14b9] (rev 10)
0000:00:14.0 SMBus [0c05]: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller [1022:790b] (rev 71)
0000:00:14.3 ISA bridge [0601]: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge [1022:790e] (rev 51)
0000:00:18.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Rembrandt Data Fabric: Device 18h; Function 0 [1022:1679]
0000:00:18.1 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Rembrandt Data Fabric: Device 18h; Function 1 [1022:167a]
0000:00:18.2 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Rembrandt Data Fabric: Device 18h; Function 2 [1022:167b]
0000:00:18.3 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Rembrandt Data Fabric: Device 18h; Function 3 [1022:167c]
0000:00:18.4 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Rembrandt Data Fabric: Device 18h; Function 4 [1022:167d]
0000:00:18.5 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Rembrandt Data Fabric: Device 18h; Function 5 [1022:167e]
0000:00:18.6 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Rembrandt Data Fabric: Device 18h; Function 6 [1022:167f]
0000:00:18.7 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Rembrandt Data Fabric: Device 18h; Function 7 [1022:1680]
0000:00:02.2/01:00.0 Network controller [0280]: Qualcomm Technologies, Inc QCNFA765 Wireless Network Adapter [17cb:1103] (rev 01)
0000:00:02.4/02:00.0 Non-Volatile memory controller [0108]: SK hynix Gold P31/BC711/PC711 NVMe Solid State Drive [1c5c:174a]
0000:00:08.1/33:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Rembrandt [Radeon 680M] [1002:1681] (rev d1)
0000:00:08.1/33:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Radeon High Definition Audio Controller [Rembrandt/Strix] [1002:1640]
0000:00:08.1/33:00.2 Encryption controller [1080]: Advanced Micro Devices, Inc. [AMD] Family 19h PSP/CCP [1022:1649]
0000:00:08.1/33:00.3 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Rembrandt USB4 XHCI controller #3 [1022:161d]
0000:00:08.1/33:00.4 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Rembrandt USB4 XHCI controller #4 [1022:161e]
0000:00:08.1/33:00.5 Multimedia controller [0480]: Advanced Micro Devices, Inc. [AMD] Audio Coprocessor [1022:15e2] (rev 60)
0000:00:08.1/33:00.6 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Family 17h/19h/1ah HD Audio Controller [1022:15e3]
0000:00:08.1/33:00.7 Signal processing controller [1180]: Advanced Micro Devices, Inc. [AMD] Sensor Fusion Hub [1022:15e4]
0000:00:08.3/34:00.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Rembrandt USB4 XHCI controller #8 [1022:161f]
0000:00:08.3/34:00.3 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Rembrandt USB4 XHCI controller #5 [1022:15d6]
0000:00:08.3/34:00.4 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Rembrandt USB4 XHCI controller #6 [1022:15d7]
0000:00:08.3/34:00.6 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Rembrandt USB4/Thunderbolt NHI controller #2 [1022:162f]# lsusb -tvv
/: Bus 001.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/4p, 480M
ID 1d6b:0002 Linux Foundation 2.0 root hub
/sys/bus/usb/devices/usb1 /dev/bus/usb/001/001
|__ Port 003: Dev 002, If 0, Class=Hub, Driver=hub/2p, 480M
ID 05e3:0610 Genesys Logic, Inc. Hub
/sys/bus/usb/devices/1-3 /dev/bus/usb/001/002
|__ Port 001: Dev 003, If 0, Class=Wireless, Driver=btusb, 12M
ID 10ab:9309 USI Co., Ltd
/sys/bus/usb/devices/1-3.1 /dev/bus/usb/001/003
|__ Port 001: Dev 003, If 1, Class=Wireless, Driver=btusb, 12M
ID 10ab:9309 USI Co., Ltd
/sys/bus/usb/devices/1-3.1 /dev/bus/usb/001/003
/: Bus 002.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/2p, 10000M
ID 1d6b:0003 Linux Foundation 3.0 root hub
/sys/bus/usb/devices/usb2 /dev/bus/usb/002/001
/: Bus 003.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/3p, 480M
ID 1d6b:0002 Linux Foundation 2.0 root hub
/sys/bus/usb/devices/usb3 /dev/bus/usb/003/001
|__ Port 003: Dev 002, If 0, Class=Vendor Specific Class, Driver=[none], 12M
ID 27c6:6594 Shenzhen Goodix Technology Co.,Ltd.
/sys/bus/usb/devices/3-3 /dev/bus/usb/003/002
/: Bus 004.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/2p, 10000M
ID 1d6b:0003 Linux Foundation 3.0 root hub
/sys/bus/usb/devices/usb4 /dev/bus/usb/004/001
/: Bus 005.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/1p, 480M
ID 1d6b:0002 Linux Foundation 2.0 root hub
/sys/bus/usb/devices/usb5 /dev/bus/usb/005/001
|__ Port 001: Dev 002, If 0, Class=Video, Driver=uvcvideo, 480M
ID 04f2:b74f Chicony Electronics Co., Ltd
/sys/bus/usb/devices/5-1 /dev/bus/usb/005/002
|__ Port 001: Dev 002, If 1, Class=Video, Driver=uvcvideo, 480M
ID 04f2:b74f Chicony Electronics Co., Ltd
/sys/bus/usb/devices/5-1 /dev/bus/usb/005/002
|__ Port 001: Dev 002, If 2, Class=Video, Driver=uvcvideo, 480M
ID 04f2:b74f Chicony Electronics Co., Ltd
/sys/bus/usb/devices/5-1 /dev/bus/usb/005/002
|__ Port 001: Dev 002, If 3, Class=Video, Driver=uvcvideo, 480M
ID 04f2:b74f Chicony Electronics Co., Ltd
/sys/bus/usb/devices/5-1 /dev/bus/usb/005/002
|__ Port 001: Dev 002, If 4, Class=Application Specific Interface, Driver=[none], 480M
ID 04f2:b74f Chicony Electronics Co., Ltd
/sys/bus/usb/devices/5-1 /dev/bus/usb/005/002
/: Bus 006.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/0p, 5000M
ID 1d6b:0003 Linux Foundation 3.0 root hub
/sys/bus/usb/devices/usb6 /dev/bus/usb/006/001
/: Bus 007.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/1p, 480M
ID 1d6b:0002 Linux Foundation 2.0 root hub
/sys/bus/usb/devices/usb7 /dev/bus/usb/007/001
/: Bus 008.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/1p, 10000M
ID 1d6b:0003 Linux Foundation 3.0 root hub
/sys/bus/usb/devices/usb8 /dev/bus/usb/008/001
/: Bus 009.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/1p, 480M
ID 1d6b:0002 Linux Foundation 2.0 root hub
/sys/bus/usb/devices/usb9 /dev/bus/usb/009/001
|__ Port 001: Dev 009, If 0, Class=Hub, Driver=hub/4p, 480M
ID 03f0:0610 HP, Inc Z24i Monitor Hub
/sys/bus/usb/devices/9-1 /dev/bus/usb/009/009
|__ Port 002: Dev 010, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
ID 046a:c098 CHERRY
/sys/bus/usb/devices/9-1.2 /dev/bus/usb/009/010
|__ Port 002: Dev 010, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M
ID 046a:c098 CHERRY
/sys/bus/usb/devices/9-1.2 /dev/bus/usb/009/010
|__ Port 003: Dev 011, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
ID 046d:c077 Logitech, Inc. Mouse
/sys/bus/usb/devices/9-1.3 /dev/bus/usb/009/011
/: Bus 010.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/1p, 10000M
ID 1d6b:0003 Linux Foundation 3.0 root hub
/sys/bus/usb/devices/usb10 /dev/bus/usb/010/001Last edited by xaggi (2025-08-07 17:57:48)
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Embarrassingly, it had not occurred to me sooner to check whether there might be a firmware update for my ThinkPad. Upgrading the firmware to the newest version fixed the issue. (I assume this was the issue. I upgraded the kernel from 6.15.8 to 6.15.9 at the same time, but I doubt that this had anything to do with it.)
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