Bug 412872

Summary: KDE becomes unresponsive after connecting keyboard with US internal layout.
Product: [Frameworks and Libraries] frameworks-kglobalaccel Reporter: akendo <akendo>
Component: generalAssignee: kdelibs bugs <kdelibs-bugs-null>
Status: REPORTED ---    
Severity: normal CC: blfmydmu
Priority: NOR    
Version First Reported In: 5.66.0   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description akendo 2019-10-12 09:57:54 UTC 
SUMMARY

KDE becomes unresponsive after connecting a keyboard with a US internal layout.
This unresponsive last for several minutes and freeze the whole desktop. 

In general it takes around 5 upto 15 minutes until KDE continues to operate as usually. During this period, the CPU load jumps to 2 and at least one core is at 100%

STEPS TO REPRODUCE
1. Go to Keyboard System Settings
2. Add an additional layout EurKEY and remove the default US layout
3. Connect a USB devices, preferable a keyboard to the computer

STEPS TO REPRODUCE

1. Suspend the laptop
2. Wake up the laptop
3. Re-connect the keyboard to the device

STEPS TO REPRODUCE

1. Connect a Bluetooth keyboard (Surface Keyboard) 
2. Let the keyboard become inactive
3. Press any button on the keyboard




OBSERVED RESULT

Once the new USB devices is detected the whole desktop becomes unresponsive and partly frozen.



EXPECTED RESULT
The computer should operate without any delay


SOFTWARE/OS VERSIONS

Linux/KDE Plasma: Archlinux 
KDE Plasma Version: 5.16.5
KDE Frameworks Version: 5.62.0
Qt Version: 5.13.1

ADDITIONAL INFORMATION

I've been hit by this bug since KDE4 presumably on an older laptop of mine. I always expected that the bug was related to a shitty EC controller, however, I've got a freshly Lenovo t480. I've configure the keyboard layout to be us international and the same behaviour is appearing.
Comment 1 akendo 2019-12-23 22:53:36 UTC 
I've updated to the latest version of KDE. The problem persist. However, on another laptop a similar defect exists. On the affected system the issue can be observe when the system returns out of memory (suspend-to-memory). 

Current tested system:

Operating System: Arch Linux 
KDE Plasma Version: 5.17.4
KDE Frameworks Version: 5.64.0
Qt Version: 5.13.2
Kernel Version: 5.4.2-arch1-1
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-8550U CPU @ 1.80GHz
Memory: 15,4 GiB of RAM

the other system is: 

Operating System: Arch Linux 
KDE Plasma Version: 5.17.4
KDE Frameworks Version: 5.65.0
Qt Version: 5.13.2
Kernel Version: 4.19.91-1-lts
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-2820QM CPU @ 2.30GHz
Memory: 15.6 GiB of RAM


I might should add that the systems have modified key-bindings that might related / cause  the issue.
Comment 2 fzhzhen 2020-01-22 17:03:33 UTC 
I have met the same bug i think.
KDE becomes unresponsive after connecting a USB-mouse.

Operating System: Arch Linux 
KDE Plasma Version: 5.17.5-1
KDE Frameworks Version: 5.66.0-1
Qt Version: 5.14.0-1
Kernel Version: 5.4.13-arch1-1
OS Type: 64-bit
Processors: Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz
Memory: 15.6 GiB of RAM
Laptop model: thinkpad x1carbon 2017 gen 5th


KDE becomes unresponsive after connecting a usb-mouse.
This unresponsive last for several minutes and freeze the whole desktop. 

In general it takes around 5 upto 15 minutes until KDE continues to operate as usually. During this period, the CPU load jumps to 4 and at least one core is at 100%.

By the way,i had changed the key binding,Ctrl to CapsLock,using .Xmodmap file.

Sometimes,the keybinding is becoming invalid,when i insert usb-mouse. 

STEPS TO REPRODUCE
1. Log in KDE desktop 
2. Insert a USB-mouse.

ADDITIONAL INFORMATION

The log info is from i disconnet the usb-mouse then i reconnect it,until KDE becomes responsive.

23.01.2020 01:41:25:878	kernel	usb 1-1: USB disconnect, device number 5
23.01.2020 01:41:25:970	kded5	UdevQt: unhandled device action "unbind"
23.01.2020 01:41:25:971	org_kde_powerdevil	UdevQt: unhandled device action "unbind"
23.01.2020 01:41:25:971	kmix	UdevQt: unhandled device action "unbind"
23.01.2020 01:41:25:972	plasmashell	UdevQt: unhandled device action "unbind"
23.01.2020 01:41:26:041	org_kde_powerdevil	UdevQt: unhandled device action "unbind"
23.01.2020 01:41:26:042	kmix	UdevQt: unhandled device action "unbind"
23.01.2020 01:41:26:042	kded5	UdevQt: unhandled device action "unbind"
23.01.2020 01:41:26:042	plasmashell	UdevQt: unhandled device action "unbind"
23.01.2020 01:41:26:273	kded5	UdevQt: unhandled device action "unbind"
23.01.2020 01:41:26:274	org_kde_powerdevil	UdevQt: unhandled device action "unbind"
23.01.2020 01:41:26:274	kmix	UdevQt: unhandled device action "unbind"
23.01.2020 01:41:26:274	plasmashell	UdevQt: unhandled device action "unbind"
23.01.2020 01:41:26:275	org_kde_powerdevil	UdevQt: unhandled device action "unbind"
23.01.2020 01:41:26:275	plasmashell	UdevQt: unhandled device action "unbind"
23.01.2020 01:41:26:275	kded5	UdevQt: unhandled device action "unbind"
23.01.2020 01:41:26:275	kmix	UdevQt: unhandled device action "unbind"
23.01.2020 01:41:26:639	wpa_supplicant	wlp4s0: CTRL-EVENT-SIGNAL-CHANGE above=0 signal=-77 noise=9999 txrate=650000
23.01.2020 01:41:36:095	kernel	usb 1-1: new full-speed USB device number 6 using xhci_hcd
23.01.2020 01:41:36:235	kernel	usb 1-1: New USB device found, idVendor=09da, idProduct=37cd, bcdDevice= 0.38
23.01.2020 01:41:36:235	kernel	usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
23.01.2020 01:41:36:236	kernel	usb 1-1: Product: USB Device 
23.01.2020 01:41:36:236	kernel	usb 1-1: Manufacturer: COMPANY 
23.01.2020 01:41:36:242	kernel	input: COMPANY  USB Device  as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0/0003:09DA:37CD.0004/input/input25
23.01.2020 01:41:36:298	kernel	hid-generic 0003:09DA:37CD.0004: input,hidraw0: USB HID v1.11 Keyboard [COMPANY  USB Device ] on usb-0000:00:14.0-1/input0
23.01.2020 01:41:36:299	kernel	input: COMPANY  USB Device  as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.1/0003:09DA:37CD.0005/input/input26
23.01.2020 01:41:36:299	kernel	hid-generic 0003:09DA:37CD.0005: input,hidraw1: USB HID v1.11 Mouse [COMPANY  USB Device ] on usb-0000:00:14.0-1/input1
23.01.2020 01:41:36:302	kernel	input: COMPANY  USB Device  Keyboard as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.2/0003:09DA:37CD.0006/input/input27
23.01.2020 01:41:36:358	kernel	input: COMPANY  USB Device  System Control as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.2/0003:09DA:37CD.0006/input/input28
23.01.2020 01:41:36:358	kernel	input: COMPANY  USB Device  Consumer Control as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.2/0003:09DA:37CD.0006/input/input29
23.01.2020 01:41:36:358	kernel	input: COMPANY  USB Device  as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.2/0003:09DA:37CD.0006/input/input30
23.01.2020 01:41:36:359	kernel	hid-generic 0003:09DA:37CD.0006: input,hiddev0,hidraw2: USB HID v1.11 Keyboard [COMPANY  USB Device ] on usb-0000:00:14.0-1/input2
23.01.2020 01:41:36:366	mtp-probe	checking bus 1, device 6: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-1"
23.01.2020 01:41:36:367	mtp-probe	bus: 1, device: 6 was not an MTP device
23.01.2020 01:41:36:445	systemd-logind	Watching system buttons on /dev/input/event17 (COMPANY  USB Device )
23.01.2020 01:41:36:446	kmix	UdevQt: unhandled device action "bind"
23.01.2020 01:41:36:446	kded5	UdevQt: unhandled device action "bind"
23.01.2020 01:41:36:447	plasmashell	UdevQt: unhandled device action "bind"
23.01.2020 01:41:36:447	org_kde_powerdevil	UdevQt: unhandled device action "bind"
23.01.2020 01:41:36:455	systemd-logind	Watching system buttons on /dev/input/event21 (COMPANY  USB Device  Consumer Control)
23.01.2020 01:41:36:455	systemd-logind	Watching system buttons on /dev/input/event19 (COMPANY  USB Device  Keyboard)
23.01.2020 01:41:36:456	systemd-logind	Watching system buttons on /dev/input/event20 (COMPANY  USB Device  System Control)
23.01.2020 01:41:36:518	mtp-probe	checking bus 1, device 6: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-1"
23.01.2020 01:41:36:519	mtp-probe	bus: 1, device: 6 was not an MTP device
23.01.2020 01:41:36:744	plasmashell	UdevQt: unhandled device action "bind"
23.01.2020 01:41:36:744	plasmashell	UdevQt: unhandled device action "bind"
23.01.2020 01:41:36:744	plasmashell	UdevQt: unhandled device action "bind"
23.01.2020 01:41:36:757	kmix	UdevQt: unhandled device action "bind"
23.01.2020 01:41:36:757	kmix	UdevQt: unhandled device action "bind"
23.01.2020 01:41:36:757	kmix	UdevQt: unhandled device action "bind"
23.01.2020 01:41:36:760	org_kde_powerdevil	UdevQt: unhandled device action "bind"
23.01.2020 01:41:36:761	org_kde_powerdevil	UdevQt: unhandled device action "bind"
23.01.2020 01:41:36:761	org_kde_powerdevil	UdevQt: unhandled device action "bind"
23.01.2020 01:41:40:976	wpa_supplicant	wlp4s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-66 noise=9999 txrate=650000
23.01.2020 01:42:03:355	kernel	mce: CPU0: Core temperature above threshold, cpu clock throttled (total events = 38801)
23.01.2020 01:42:03:355	kernel	mce: CPU3: Package temperature above threshold, cpu clock throttled (total events = 72956)
23.01.2020 01:42:03:355	kernel	mce: CPU1: Package temperature above threshold, cpu clock throttled (total events = 72956)
23.01.2020 01:42:03:355	kernel	mce: CPU2: Core temperature above threshold, cpu clock throttled (total events = 38801)
23.01.2020 01:42:03:355	kernel	mce: CPU2: Package temperature above threshold, cpu clock throttled (total events = 72956)
23.01.2020 01:42:03:355	kernel	mce: CPU0: Package temperature above threshold, cpu clock throttled (total events = 72956)
23.01.2020 01:42:03:358	kernel	mce: CPU2: Core temperature/speed normal
23.01.2020 01:42:03:358	kernel	mce: CPU0: Core temperature/speed normal
23.01.2020 01:42:03:358	kernel	mce: CPU3: Package temperature/speed normal
23.01.2020 01:42:03:358	kernel	mce: CPU1: Package temperature/speed normal
23.01.2020 01:42:03:358	kernel	mce: CPU0: Package temperature/speed normal
23.01.2020 01:42:03:358	kernel	mce: CPU2: Package temperature/speed normal
23.01.2020 01:42:31:639	kcminit	qt.core.logging: Ignoring malformed logging rule: '’.debug*=false’'
23.01.2020 01:42:31:640	kcminit	Warning: QT_DEVICE_PIXEL_RATIO is deprecated. Instead use:
   QT_AUTO_SCREEN_SCALE_FACTOR to enable platform plugin controlled per-screen factors.
   QT_SCREEN_SCALE_FACTORS to set per-screen DPI.
   QT_SCALE_FACTOR to set the application global scale factor.
23.01.2020 01:42:59:030	kcminit	Initializing  "kcm_mouse" :  "kcminit_mouse"
23.01.2020 01:42:59:120	kwin_x11	qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 19660, resource id: 18874373, major code: 18 (ChangeProperty), minor code: 0
23.01.2020 01:42:59:120	kcminit	QFileSystemWatcher::removePaths: list is empty
23.01.2020 01:42:59:120	kcminit	QFileSystemWatcher::removePaths: list is empty
23.01.2020 01:43:11:628	wpa_supplicant	wlp4s0: CTRL-EVENT-SIGNAL-CHANGE above=0 signal=-67 noise=9999 txrate=650000
23.01.2020 01:44:57:552	kwin_x11	qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 41972, resource id: 42095224, major code: 18 (ChangeProperty), minor code: 0
23.01.2020 01:44:57:582	kwin_x11	qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 42120, resource id: 42095228, major code: 18 (ChangeProperty), minor code: 0
23.01.2020 01:44:57:780	plasmashell	qt.qpa.xcb: QXcbConnection: XCB error: 8 (BadMatch), sequence: 9131, resource id: 39845945, major code: 42 (SetInputFocus), minor code: 0
23.01.2020 01:46:11:638	kcminit	qt.core.logging: Ignoring malformed logging rule: '’.debug*=false’'
23.01.2020 01:46:11:638	kcminit	Warning: QT_DEVICE_PIXEL_RATIO is deprecated. Instead use:
   QT_AUTO_SCREEN_SCALE_FACTOR to enable platform plugin controlled per-screen factors.
   QT_SCREEN_SCALE_FACTORS to set per-screen DPI.
   QT_SCALE_FACTOR to set the application global scale factor.
23.01.2020 01:46:38:512	kcminit	Initializing  "kcm_mouse" :  "kcminit_mouse"
23.01.2020 01:46:38:629	kwin_x11	qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 60635, resource id: 18874373, major code: 18 (ChangeProperty), minor code: 0
23.01.2020 01:46:38:630	kcminit	QFileSystemWatcher::removePaths: list is empty
23.01.2020 01:46:38:630	kcminit	QFileSystemWatcher::removePaths: list is empty
23.01.2020 01:47:03:358	kernel	mce: CPU0: Core temperature/speed normal
23.01.2020 01:47:03:388	kernel	mce: CPU3: Package temperature/speed normal
23.01.2020 01:47:03:388	kernel	mce: CPU2: Core temperature/speed normal
23.01.2020 01:47:03:388	kernel	mce: CPU1: Package temperature/speed normal
23.01.2020 01:47:03:388	kernel	mce: CPU2: Package temperature/speed normal
23.01.2020 01:47:03:388	kernel	mce: CPU0: Package temperature/speed normal
23.01.2020 01:47:33:168	kded5	UdevQt: unhandled device action "bind"
23.01.2020 01:47:33:173	kded5	UdevQt: unhandled device action "bind"
23.01.2020 01:47:33:173	kded5	UdevQt: unhandled device action "bind"
23.01.2020 01:48:05:628	wpa_supplicant	wlp4s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-70 noise=9999 txrate=650000
23.01.2020 01:48:23:628	wpa_supplicant	wlp4s0: CTRL-EVENT-SIGNAL-CHANGE above=0 signal=-70 noise=9999 txrate=650000
23.01.2020 01:48:35:625	wpa_supplicant	wlp4s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-67 noise=9999 txrate=780000
23.01.2020 01:48:59:555	wpa_supplicant	wlp4s0: CTRL-EVENT-SIGNAL-CHANGE above=0 signal=-73 noise=9999 txrate=585100
23.01.2020 01:49:11:624	wpa_supplicant	wlp4s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-69 noise=9999 txrate=650000
23.01.2020 01:49:39:694	wpa_supplicant	wlp4s0: CTRL-EVENT-SIGNAL-CHANGE above=0 signal=-69 noise=9999 txrate=650000
23.01.2020 01:49:59:625	wpa_supplicant	wlp4s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-68 noise=9999 txrate=650000
23.01.2020 01:50:07:754	wpa_supplicant	wlp4s0: CTRL-EVENT-SIGNAL-CHANGE above=0 signal=-74 noise=9999 txrate=650000
23.01.2020 01:51:03:971	wpa_supplicant	wlp4s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-63 noise=9999 txrate=585100
23.01.2020 01:51:36:975	kwin_x11	qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 20839, resource id: 39846218, major code: 18 (ChangeProperty), minor code: 0
23.01.2020 01:51:37:126	kded5	Registering ":1.136/StatusNotifierItem" to system tray
23.01.2020 01:51:37:129	plasmashell	QQuickItem::stackAfter: Cannot stack StatusNotifierItem_QMLTYPE_394(0x564226470970, parent=0x56422134e310, geometry=0,0 0x0) after StatusNotifierItem_QMLTYPE_394(0x5642220fc7b0), which must be a sibling
23.01.2020 01:51:37:206	kded5	Service  ":1.136" unregistered
23.01.2020 01:52:03:394	kernel	mce: CPU0: Core temperature above threshold, cpu clock throttled (total events = 71064)
23.01.2020 01:52:03:394	kernel	mce: CPU2: Core temperature above threshold, cpu clock throttled (total events = 71064)
23.01.2020 01:52:03:394	kernel	mce: CPU0: Package temperature above threshold, cpu clock throttled (total events = 120310)
23.01.2020 01:52:03:394	kernel	mce: CPU2: Package temperature above threshold, cpu clock throttled (total events = 120310)
23.01.2020 01:52:03:394	kernel	mce: CPU3: Package temperature above threshold, cpu clock throttled (total events = 120310)
23.01.2020 01:52:03:394	kernel	mce: CPU1: Package temperature above threshold, cpu clock throttled (total events = 120310)
23.01.2020 01:52:03:398	kernel	mce: CPU2: Core temperature/speed normal
23.01.2020 01:52:03:398	kernel	mce: CPU3: Package temperature/speed normal
23.01.2020 01:52:03:398	kernel	mce: CPU0: Core temperature/speed normal
23.01.2020 01:52:03:398	kernel	mce: CPU1: Package temperature/speed normal
23.01.2020 01:52:03:398	kernel	mce: CPU0: Package temperature/speed normal
23.01.2020 01:52:03:398	kernel	mce: CPU2: Package temperature/speed normal
23.01.2020 01:52:21:803	kernel	mce: CPU3: Core temperature above threshold, cpu clock throttled (total events = 53065)
23.01.2020 01:52:21:803	kernel	mce: CPU1: Core temperature above threshold, cpu clock throttled (total events = 53065)
23.01.2020 01:52:21:805	kernel	mce: CPU3: Core temperature/speed normal
23.01.2020 01:52:21:805	kernel	mce: CPU1: Core temperature/speed normal
23.01.2020 01:54:22:728	wpa_supplicant	wlp4s0: CTRL-EVENT-SIGNAL-CHANGE above=0 signal=-74 noise=9999 txrate=780000
23.01.2020 01:54:41:058	wpa_supplicant	wlp4s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-62 noise=9999 txrate=780000
23.01.2020 01:57:03:395	kernel	mce: CPU1: Package temperature/speed normal
23.01.2020 01:57:03:478	kernel	mce: CPU3: Package temperature/speed normal
23.01.2020 01:57:03:478	kernel	mce: CPU2: Package temperature/speed normal
23.01.2020 01:57:03:478	kernel	mce: CPU0: Package temperature/speed normal
23.01.2020 01:58:23:628	wpa_supplicant	wlp4s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-61 noise=9999 txrate=780000
Comment 3 fzhzhen 2020-01-22 17:55:40 UTC 
That log is seem so bad. i upload the new one.
The log info is from i disconnet the usb-mouse then i reconnect it,until KDE return responsive.


23.01.2020 02:30:51:578	kernel	usb 1-1: USB disconnect, device number 2
23.01.2020 02:30:51:730	org_kde_powerdevil	UdevQt: unhandled device action "unbind"
23.01.2020 02:30:51:732	kmix	UdevQt: unhandled device action "unbind"
23.01.2020 02:30:51:733	kded5	UdevQt: unhandled device action "unbind"
23.01.2020 02:30:51:733	plasmashell	UdevQt: unhandled device action "unbind"
23.01.2020 02:30:51:757	org_kde_powerdevil	UdevQt: unhandled device action "unbind"
23.01.2020 02:30:51:757	plasmashell	UdevQt: unhandled device action "unbind"
23.01.2020 02:30:51:757	kmix	UdevQt: unhandled device action "unbind"
23.01.2020 02:30:51:757	kded5	UdevQt: unhandled device action "unbind"
23.01.2020 02:30:51:995	kded5	UdevQt: unhandled device action "unbind"
23.01.2020 02:30:51:995	kmix	UdevQt: unhandled device action "unbind"
23.01.2020 02:30:51:995	plasmashell	UdevQt: unhandled device action "unbind"
23.01.2020 02:30:51:995	org_kde_powerdevil	UdevQt: unhandled device action "unbind"
23.01.2020 02:30:51:996	plasmashell	UdevQt: unhandled device action "unbind"
23.01.2020 02:30:51:996	kded5	UdevQt: unhandled device action "unbind"
23.01.2020 02:30:51:996	kmix	UdevQt: unhandled device action "unbind"
23.01.2020 02:30:51:996	org_kde_powerdevil	UdevQt: unhandled device action "unbind"
23.01.2020 02:30:53:785	kernel	usb 1-1: new full-speed USB device number 6 using xhci_hcd
23.01.2020 02:30:53:925	kernel	usb 1-1: New USB device found, idVendor=09da, idProduct=37cd, bcdDevice= 0.38
23.01.2020 02:30:53:926	kernel	usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
23.01.2020 02:30:53:926	kernel	usb 1-1: Product: USB Device 
23.01.2020 02:30:53:927	kernel	usb 1-1: Manufacturer: COMPANY 
23.01.2020 02:30:53:927	kernel	input: COMPANY  USB Device  as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0/0003:09DA:37CD.0004/input/input25
23.01.2020 02:30:53:985	kernel	hid-generic 0003:09DA:37CD.0004: input,hidraw0: USB HID v1.11 Keyboard [COMPANY  USB Device ] on usb-0000:00:14.0-1/input0
23.01.2020 02:30:53:986	kernel	input: COMPANY  USB Device  as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.1/0003:09DA:37CD.0005/input/input26
23.01.2020 02:30:53:986	kernel	hid-generic 0003:09DA:37CD.0005: input,hidraw1: USB HID v1.11 Mouse [COMPANY  USB Device ] on usb-0000:00:14.0-1/input1
23.01.2020 02:30:53:986	kernel	input: COMPANY  USB Device  Keyboard as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.2/0003:09DA:37CD.0006/input/input27
23.01.2020 02:30:54:045	kernel	input: COMPANY  USB Device  System Control as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.2/0003:09DA:37CD.0006/input/input28
23.01.2020 02:30:54:045	kernel	input: COMPANY  USB Device  Consumer Control as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.2/0003:09DA:37CD.0006/input/input29
23.01.2020 02:30:54:045	kernel	input: COMPANY  USB Device  as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.2/0003:09DA:37CD.0006/input/input30
23.01.2020 02:30:54:045	kernel	hid-generic 0003:09DA:37CD.0006: input,hiddev0,hidraw2: USB HID v1.11 Keyboard [COMPANY  USB Device ] on usb-0000:00:14.0-1/input2
23.01.2020 02:30:54:054	mtp-probe	checking bus 1, device 6: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-1"
23.01.2020 02:30:54:054	mtp-probe	bus: 1, device: 6 was not an MTP device
23.01.2020 02:30:54:115	systemd-logind	Watching system buttons on /dev/input/event11 (COMPANY  USB Device  Consumer Control)
23.01.2020 02:30:54:117	systemd-logind	Watching system buttons on /dev/input/event10 (COMPANY  USB Device  System Control)
23.01.2020 02:30:54:119	systemd-logind	Watching system buttons on /dev/input/event8 (COMPANY  USB Device  Keyboard)
23.01.2020 02:30:54:120	systemd-logind	Watching system buttons on /dev/input/event6 (COMPANY  USB Device )
23.01.2020 02:30:54:121	kmix	UdevQt: unhandled device action "bind"
23.01.2020 02:30:54:147	kded5	UdevQt: unhandled device action "bind"
23.01.2020 02:30:54:148	plasmashell	UdevQt: unhandled device action "bind"
23.01.2020 02:30:54:148	org_kde_powerdevil	UdevQt: unhandled device action "bind"
23.01.2020 02:30:54:149	kmix	UdevQt: unhandled device action "bind"
23.01.2020 02:30:54:149	kded5	UdevQt: unhandled device action "bind"
23.01.2020 02:30:54:149	plasmashell	UdevQt: unhandled device action "bind"
23.01.2020 02:30:54:149	org_kde_powerdevil	UdevQt: unhandled device action "bind"
23.01.2020 02:30:54:195	mtp-probe	checking bus 1, device 6: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-1"
23.01.2020 02:30:54:196	mtp-probe	bus: 1, device: 6 was not an MTP device
23.01.2020 02:30:54:429	plasmashell	UdevQt: unhandled device action "bind"
23.01.2020 02:30:54:430	plasmashell	UdevQt: unhandled device action "bind"
23.01.2020 02:30:54:435	org_kde_powerdevil	UdevQt: unhandled device action "bind"
23.01.2020 02:30:54:436	org_kde_powerdevil	UdevQt: unhandled device action "bind"
23.01.2020 02:30:54:438	kmix	UdevQt: unhandled device action "bind"
23.01.2020 02:30:54:438	kmix	UdevQt: unhandled device action "bind"
23.01.2020 02:31:08:745	kcminit	QFileSystemWatcher::removePaths: list is empty
23.01.2020 02:31:08:745	kcminit	QFileSystemWatcher::removePaths: list is empty
23.01.2020 02:31:09:514	kwin_x11	qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 38395, resource id: 69206021, major code: 18 (ChangeProperty), minor code: 0
23.01.2020 02:33:01:145	kded5	org.kde.kcm_keyboard: Failed to execute  ("/usr/bin/xmodmap", "/home/fzh/.Xmodmap")
23.01.2020 02:33:40:332	kernel	mce: CPU3: Package temperature above threshold, cpu clock throttled (total events = 4158)
23.01.2020 02:33:40:338	kernel	mce: CPU1: Package temperature above threshold, cpu clock throttled (total events = 4158)
23.01.2020 02:33:40:338	kernel	mce: CPU0: Package temperature above threshold, cpu clock throttled (total events = 4158)
23.01.2020 02:33:40:338	kernel	mce: CPU2: Package temperature above threshold, cpu clock throttled (total events = 4158)
23.01.2020 02:33:40:338	kernel	mce: CPU0: Package temperature/speed normal
23.01.2020 02:33:40:338	kernel	mce: CPU3: Package temperature/speed normal
23.01.2020 02:33:40:338	kernel	mce: CPU2: Package temperature/speed normal
23.01.2020 02:33:40:338	kernel	mce: CPU1: Package temperature/speed normal
23.01.2020 02:33:53:818	kernel	mce: CPU1: Core temperature/speed normal
23.01.2020 02:33:53:819	kernel	mce: CPU3: Core temperature/speed normal
23.01.2020 02:35:22:223	kded5	org.kde.kcm_keyboard: Failed to execute  ("/usr/bin/xmodmap", "/home/fzh/.Xmodmap")
23.01.2020 02:37:38:906	kded5	org.kde.kcm_keyboard: Failed to execute  ("/usr/bin/xmodmap", "/home/fzh/.Xmodmap")
23.01.2020 02:38:40:329	kernel	mce: CPU3: Package temperature above threshold, cpu clock throttled (total events = 22235)
23.01.2020 02:38:40:335	kernel	mce: CPU2: Package temperature above threshold, cpu clock throttled (total events = 22235)
23.01.2020 02:38:40:335	kernel	mce: CPU0: Package temperature above threshold, cpu clock throttled (total events = 22235)
23.01.2020 02:38:40:335	kernel	mce: CPU1: Package temperature above threshold, cpu clock throttled (total events = 22235)
23.01.2020 02:38:40:335	kernel	mce: CPU3: Package temperature/speed normal
23.01.2020 02:38:40:335	kernel	mce: CPU1: Package temperature/speed normal
23.01.2020 02:38:40:335	kernel	mce: CPU2: Package temperature/speed normal
23.01.2020 02:38:40:335	kernel	mce: CPU0: Package temperature/speed normal
23.01.2020 02:39:54:552	kded5	org.kde.kcm_keyboard: Failed to execute  ("/usr/bin/xmodmap", "/home/fzh/.Xmodmap")
23.01.2020 02:42:14:693	kded5	org.kde.kcm_keyboard: Failed to execute  ("/usr/bin/xmodmap", "/home/fzh/.Xmodmap")
23.01.2020 02:43:05:037	kcminit	QFileSystemWatcher::removePaths: list is empty
23.01.2020 02:43:05:043	kcminit	QFileSystemWatcher::removePaths: list is empty
23.01.2020 02:43:06:318	kwin_x11	qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 36395, resource id: 73400325, major code: 18 (ChangeProperty), minor code: 0
23.01.2020 02:43:40:601	kernel	mce: CPU0: Package temperature above threshold, cpu clock throttled (total events = 42555)
23.01.2020 02:43:40:607	kernel	mce: CPU1: Package temperature above threshold, cpu clock throttled (total events = 42555)
23.01.2020 02:43:40:607	kernel	mce: CPU3: Package temperature above threshold, cpu clock throttled (total events = 42555)
23.01.2020 02:43:40:607	kernel	mce: CPU2: Package temperature above threshold, cpu clock throttled (total events = 42555)
23.01.2020 02:43:40:607	kernel	mce: CPU0: Package temperature/speed normal
23.01.2020 02:43:40:607	kernel	mce: CPU1: Package temperature/speed normal
23.01.2020 02:43:40:607	kernel	mce: CPU3: Package temperature/speed normal
23.01.2020 02:43:40:607	kernel	mce: CPU2: Package temperature/speed normal
23.01.2020 02:43:40:608	systemd	Starting Cleanup of Temporary Directories...
23.01.2020 02:43:40:639	systemd	systemd-tmpfiles-clean.service: Succeeded.
23.01.2020 02:43:40:640	systemd	Started Cleanup of Temporary Directories.
23.01.2020 02:43:40:640	audit	SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-tmpfiles-clean comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
23.01.2020 02:43:40:640	audit	SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-tmpfiles-clean comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
23.01.2020 02:43:40:642	kernel	audit: type=1130 audit(1579715020.635:58): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-tmpfiles-clean comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
23.01.2020 02:43:40:642	kernel	audit: type=1131 audit(1579715020.635:59): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-tmpfiles-clean comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
23.01.2020 02:44:31:479	kded5	org.kde.kcm_keyboard: Failed to execute  ("/usr/bin/xmodmap", "/home/fzh/.Xmodmap")
23.01.2020 02:45:35:817	kded5	UdevQt: unhandled device action "bind"
23.01.2020 02:45:35:823	kded5	UdevQt: unhandled device action "bind"
23.01.2020 02:48:59:692	kernel	mce: CPU0: Core temperature above threshold, cpu clock throttled (total events = 23193)
23.01.2020 02:48:59:722	kernel	mce: CPU2: Core temperature above threshold, cpu clock throttled (total events = 23193)
23.01.2020 02:48:59:722	kernel	mce: CPU2: Package temperature above threshold, cpu clock throttled (total events = 50527)
23.01.2020 02:48:59:722	kernel	mce: CPU0: Package temperature above threshold, cpu clock throttled (total events = 50527)
23.01.2020 02:48:59:722	kernel	mce: CPU3: Package temperature above threshold, cpu clock throttled (total events = 50527)
23.01.2020 02:48:59:722	kernel	mce: CPU1: Package temperature above threshold, cpu clock throttled (total events = 50527)
23.01.2020 02:48:59:722	kernel	mce: CPU2: Core temperature/speed normal
23.01.2020 02:48:59:722	kernel	mce: CPU0: Core temperature/speed normal
23.01.2020 02:48:59:722	kernel	mce: CPU1: Package temperature/speed normal
23.01.2020 02:48:59:722	kernel	mce: CPU3: Package temperature/speed normal
23.01.2020 02:48:59:722	kernel	mce: CPU0: Package temperature/speed normal
23.01.2020 02:48:59:722	kernel	mce: CPU2: Package temperature/speed normal
Comment 4 fzhzhen 2020-01-22 18:18:52 UTC 
Another REPRODUCE way:
xinput disable my touchpad(Synaptics TM3288-003) is ok.
but following that restart my touchpad(xinput enable touchpad),the bug is appear.


Operating System: Arch Linux 
KDE Plasma Version: 5.17.5-1
KDE Frameworks Version: 5.66.0-1
Qt Version: 5.14.0-1
Kernel Version: 5.4.13-arch1-1
OS Type: 64-bit
Processors: Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz
Memory: 15.6 GiB of RAM
Laptop model: thinkpad x1carbon 2017 gen 5th

The log is beginning at reopen the touchpad,ending at KDE return responsive.

23.01.2020 03:15:35:811	kernel	mce: CPU0: Core temperature above threshold, cpu clock throttled (total events = 25791)
23.01.2020 03:15:35:841	kernel	mce: CPU2: Core temperature above threshold, cpu clock throttled (total events = 25791)
23.01.2020 03:15:35:841	kernel	mce: CPU3: Package temperature above threshold, cpu clock throttled (total events = 53848)
23.01.2020 03:15:35:841	kernel	mce: CPU1: Package temperature above threshold, cpu clock throttled (total events = 53848)
23.01.2020 03:15:35:841	kernel	mce: CPU2: Package temperature above threshold, cpu clock throttled (total events = 53848)
23.01.2020 03:15:35:841	kernel	mce: CPU0: Package temperature above threshold, cpu clock throttled (total events = 53848)
23.01.2020 03:15:35:841	kernel	mce: CPU0: Core temperature/speed normal
23.01.2020 03:15:35:841	kernel	mce: CPU1: Package temperature/speed normal
23.01.2020 03:15:35:841	kernel	mce: CPU2: Core temperature/speed normal
23.01.2020 03:15:35:841	kernel	mce: CPU3: Package temperature/speed normal
23.01.2020 03:15:35:841	kernel	mce: CPU2: Package temperature/speed normal
23.01.2020 03:15:35:841	kernel	mce: CPU0: Package temperature/speed normal
23.01.2020 03:16:01:174	kwin_x11	qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 14350, resource id: 98566149, major code: 18 (ChangeProperty), minor code: 0
23.01.2020 03:16:01:180	kcminit	QFileSystemWatcher::removePaths: list is empty
23.01.2020 03:16:01:180	kcminit	QFileSystemWatcher::removePaths: list is empty