[kde] [Bug 341005] New: Crash when unplugging USB video device
Salvador I. Gonzalez
sgonzalez at codejunkie.net
Sat Nov 15 22:22:09 GMT 2014
https://bugs.kde.org/show_bug.cgi?id=341005
Bug ID: 341005
Summary: Crash when unplugging USB video device
Product: kde
Version: 4.13.3
Platform: Kubuntu Packages
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
Assignee: unassigned-bugs at kde.org
Reporter: sgonzalez at codejunkie.net
Application: kded4 (4.13.3)
KDE Platform Version: 4.13.3
Qt Version: 4.8.6
Operating System: Linux 3.13.0-39-generic x86_64
Distribution: Ubuntu 14.04.1 LTS
-- Information about the crash:
- What I was doing when the application crashed:
Removed USB Monitor driver - AOC e1649Fwu, using udl kernel driver.
This moitor requires a special modeline to work properly, the auto-config in
KDE does not work:
xrandr --newmode "1368x768_60.20" 86.15 1368 1440 1584 1800 768 769 772 795
-HSync +Vsync
lsusb for device:
Bus 001 Device 003: ID 1210:2604 DigiTech
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x1210 DigiTech
idProduct 0x2604
bcdDevice 0.01
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 512
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 14 Video
bFunctionSubClass 3 Video Interface Collection
bFunctionProtocol 0
iFunction 4
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 1 Video Control
bInterfaceProtocol 0
iInterface 4
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.00
wTotalLength 78
dwClockFrequency 30.000000MHz
bInCollection 1
baInterfaceNr( 0) 1
VideoControl Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 6
guidExtensionCode {b0d0bb68-a461-834b-90b7-a6215f3c4f70}
bNumControl 16
bNrPins 1
baSourceID( 0) 2
bControlSize 2
bmControls( 0) 0xff
bmControls( 1) 0xff
iExtension 0
VideoControl Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Camera Sensor
bAssocTerminal 0
iTerminal 0
wObjectiveFocalLengthMin 0
wObjectiveFocalLengthMax 0
wOcularFocalLength 0
bControlSize 3
bmControls 0x00000000
VideoControl Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
Warning: Descriptor too short
bUnitID 2
bSourceID 1
wMaxMultiplier 0
bControlSize 2
bmControls 0x0000157f
Brightness
Contrast
Hue
Saturation
Sharpness
Gamma
White Balance Temperature
Backlight Compensation
Power Line Frequency
White Balance Temperature, Auto
iProcessing 0
bmVideoStandards 0x 9
None
SECAM - 625/50
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 3
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 2
iTerminal 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 7
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 4
VideoStreaming Interface Descriptor:
bLength 14
bDescriptorType 36
bDescriptorSubtype 1 (INPUT_HEADER)
bNumFormats 1
wTotalLength 323
bEndPointAddress 130
bmInfo 0
bTerminalLink 3
bStillCaptureMethod 2
bTriggerSupport 1
bTriggerUsage 0
bControlSize 1
bmaControls( 0) 27
VideoStreaming Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
bFormatIndex 1
bNumFrameDescriptors 5
guidFormat
{59555932-0000-1000-8000-00aa00389b71}
bBitsPerPixel 16
bDefaultFrameIndex 1
bAspectRatioX 0
bAspectRatioY 0
bmInterlaceFlags 0x00
Interlaced stream or variable: No
Fields per frame: 2 fields
Field 1 first: No
Field pattern: Field 1 only
bCopyProtect 0
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 1
bmCapabilities 0x00
Still image unsupported
wWidth 640
wHeight 480
dwMinBitRate 3072000
dwMaxBitRate 18432000
dwMaxVideoFrameBufferSize 614400
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 2
bmCapabilities 0x00
Still image unsupported
wWidth 352
wHeight 288
dwMinBitRate 1013760
dwMaxBitRate 6082560
dwMaxVideoFrameBufferSize 202752
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 3
bmCapabilities 0x00
Still image unsupported
wWidth 320
wHeight 240
dwMinBitRate 768000
dwMaxBitRate 4608000
dwMaxVideoFrameBufferSize 153600
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 4
bmCapabilities 0x00
Still image unsupported
wWidth 176
wHeight 144
dwMinBitRate 253440
dwMaxBitRate 1520640
dwMaxVideoFrameBufferSize 50688
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 5
bmCapabilities 0x00
Still image unsupported
wWidth 160
wHeight 120
dwMinBitRate 192000
dwMaxBitRate 1152000
dwMaxVideoFrameBufferSize 38400
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 400000
dwFrameInterval( 2) 500000
dwFrameInterval( 3) 666666
dwFrameInterval( 4) 1000000
dwFrameInterval( 5) 2000000
VideoStreaming Interface Descriptor:
bLength 26
bDescriptorType 36
bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
bEndpointAddress 0
bNumImageSizePatterns 5
wWidth( 0) 640
wHeight( 0) 480
wWidth( 1) 352
wHeight( 1) 288
wWidth( 2) 320
wHeight( 2) 240
wWidth( 3) 176
wHeight( 3) 144
wWidth( 4) 160
wHeight( 4) 120
bNumCompressionPatterns 5
VideoStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 13 (COLORFORMAT)
bColorPrimaries 1 (BT.709,sRGB)
bTransferCharacteristics 1 (BT.709)
bMatrixCoefficients 4 (SMPTE 170M (BT.601))
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 4
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x1400 3x 1024 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 4
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0c00 2x 1024 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 4
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 4
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 4
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 1
The crash can be reproduced every time.
-- Backtrace:
Application: KDE Daemon (kded4), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff7c7ae67c0 (LWP 2494))]
Thread 6 (Thread 0x7ff7ab68a700 (LWP 2509)):
#0 qt_gettime () at tools/qelapsedtimer_unix.cpp:142
#1 0x00007ff7c6786f05 in updateCurrentTime (this=0x7ff7a4003130) at
kernel/qeventdispatcher_unix.cpp:354
#2 QTimerInfoList::timerWait (this=0x7ff7a4003130, tm=...) at
kernel/qeventdispatcher_unix.cpp:460
#3 0x00007ff7c678567c in timerSourcePrepareHelper (src=<optimized out>,
timeout=0x7ff7ab689c64) at kernel/qeventdispatcher_glib.cpp:143
#4 0x00007ff7c6785725 in timerSourcePrepare (source=<optimized out>,
timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:176
#5 0x00007ff7c244968d in g_main_context_prepare () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6 0x00007ff7c2449f03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7 0x00007ff7c244a0ec in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8 0x00007ff7c67857be in QEventDispatcherGlib::processEvents
(this=0x7ff7a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#9 0x00007ff7c67570af in QEventLoop::processEvents
(this=this at entry=0x7ff7ab689e20, flags=...) at kernel/qeventloop.cpp:149
#10 0x00007ff7c67573a5 in QEventLoop::exec (this=this at entry=0x7ff7ab689e20,
flags=...) at kernel/qeventloop.cpp:204
#11 0x00007ff7c6653c5f in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:537
#12 0x00007ff7c665632f in QThreadPrivate::start (arg=0x20d08b0) at
thread/qthread_unix.cpp:349
#13 0x00007ff7c2b2c182 in start_thread (arg=0x7ff7ab68a700) at
pthread_create.c:312
#14 0x00007ff7c5358fbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 5 (Thread 0x7ff79a237700 (LWP 2528)):
#0 0x00007ff7c6786ef9 in QTimerInfoList::timerWait (this=0x7ff780003130,
tm=...) at kernel/qeventdispatcher_unix.cpp:459
#1 0x00007ff7c678567c in timerSourcePrepareHelper (src=<optimized out>,
timeout=0x7ff79a236c24) at kernel/qeventdispatcher_glib.cpp:143
#2 0x00007ff7c6785725 in timerSourcePrepare (source=<optimized out>,
timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:176
#3 0x00007ff7c244968d in g_main_context_prepare () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007ff7c2449f03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5 0x00007ff7c244a0ec in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6 0x00007ff7c67857be in QEventDispatcherGlib::processEvents
(this=0x7ff7800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#7 0x00007ff7c67570af in QEventLoop::processEvents
(this=this at entry=0x7ff79a236de0, flags=...) at kernel/qeventloop.cpp:149
#8 0x00007ff7c67573a5 in QEventLoop::exec (this=this at entry=0x7ff79a236de0,
flags=...) at kernel/qeventloop.cpp:204
#9 0x00007ff7c6653c5f in QThread::exec (this=this at entry=0x21f0400) at
thread/qthread.cpp:537
#10 0x00007ff7c6738823 in QInotifyFileSystemWatcherEngine::run (this=0x21f0400)
at io/qfilesystemwatcher_inotify.cpp:265
#11 0x00007ff7c665632f in QThreadPrivate::start (arg=0x21f0400) at
thread/qthread_unix.cpp:349
#12 0x00007ff7c2b2c182 in start_thread (arg=0x7ff79a237700) at
pthread_create.c:312
#13 0x00007ff7c5358fbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 4 (Thread 0x7ff799830700 (LWP 2532)):
#0 0x00007ff7c534bc6d in poll () at ../sysdeps/unix/syscall-template.S:81
#1 0x00007ff7c2449fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007ff7c244a0ec in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007ff7c67857be in QEventDispatcherGlib::processEvents
(this=0x7ff7840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4 0x00007ff7c67570af in QEventLoop::processEvents
(this=this at entry=0x7ff79982fde0, flags=...) at kernel/qeventloop.cpp:149
#5 0x00007ff7c67573a5 in QEventLoop::exec (this=this at entry=0x7ff79982fde0,
flags=...) at kernel/qeventloop.cpp:204
#6 0x00007ff7c6653c5f in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:537
#7 0x00007ff7a8a77027 in KCupsConnection::run() () from
/usr/lib/libkcupslib.so
#8 0x00007ff7c665632f in QThreadPrivate::start (arg=0x20ffdf0) at
thread/qthread_unix.cpp:349
#9 0x00007ff7c2b2c182 in start_thread (arg=0x7ff799830700) at
pthread_create.c:312
#10 0x00007ff7c5358fbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 3 (Thread 0x7ff79902f700 (LWP 2533)):
#0 0x00007ff7c2449bda in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1 0x00007ff7c244a048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007ff7c244a0ec in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007ff7c67857be in QEventDispatcherGlib::processEvents
(this=0x7ff7780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4 0x00007ff7c67570af in QEventLoop::processEvents
(this=this at entry=0x7ff79902ee20, flags=...) at kernel/qeventloop.cpp:149
#5 0x00007ff7c67573a5 in QEventLoop::exec (this=this at entry=0x7ff79902ee20,
flags=...) at kernel/qeventloop.cpp:204
#6 0x00007ff7c6653c5f in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:537
#7 0x00007ff7c665632f in QThreadPrivate::start (arg=0x22e1c40) at
thread/qthread_unix.cpp:349
#8 0x00007ff7c2b2c182 in start_thread (arg=0x7ff79902f700) at
pthread_create.c:312
#9 0x00007ff7c5358fbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 2 (Thread 0x7ff77fdad700 (LWP 2544)):
#0 0x00007ff7c248b61a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1 0x00007ff7c248b9a9 in g_mutex_unlock () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007ff7c2449680 in g_main_context_prepare () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007ff7c2449f03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007ff7c244a0ec in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5 0x00007ff7c67857be in QEventDispatcherGlib::processEvents
(this=0x7ff7680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6 0x00007ff7c67570af in QEventLoop::processEvents
(this=this at entry=0x7ff77fdacde0, flags=...) at kernel/qeventloop.cpp:149
#7 0x00007ff7c67573a5 in QEventLoop::exec (this=this at entry=0x7ff77fdacde0,
flags=...) at kernel/qeventloop.cpp:204
#8 0x00007ff7c6653c5f in QThread::exec (this=this at entry=0x23818e0) at
thread/qthread.cpp:537
#9 0x00007ff7c6738823 in QInotifyFileSystemWatcherEngine::run (this=0x23818e0)
at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007ff7c665632f in QThreadPrivate::start (arg=0x23818e0) at
thread/qthread_unix.cpp:349
#11 0x00007ff7c2b2c182 in start_thread (arg=0x7ff77fdad700) at
pthread_create.c:312
#12 0x00007ff7c5358fbd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 1 (Thread 0x7ff7c7ae67c0 (LWP 2494)):
[KCrash Handler]
#5 0x00007ff7a996638b in XRandROutput::updateOutput(_XRROutputInfo const*) ()
from /usr/lib/kde4/plugins/kscreen/KSC_XRandR.so
#6 0x00007ff7a9965f44 in XRandROutput::XRandROutput(int, bool, XRandRConfig*)
() from /usr/lib/kde4/plugins/kscreen/KSC_XRandR.so
#7 0x00007ff7a995c8ad in XRandRConfig::createNewOutput(unsigned long, bool) ()
from /usr/lib/kde4/plugins/kscreen/KSC_XRandR.so
#8 0x00007ff7a995c830 in XRandRConfig::addNewOutput(unsigned long) () from
/usr/lib/kde4/plugins/kscreen/KSC_XRandR.so
#9 0x00007ff7a995957a in XRandR::updateOutput(unsigned long) () from
/usr/lib/kde4/plugins/kscreen/KSC_XRandR.so
#10 0x00007ff7a9959edf in XRandR::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**) () from
/usr/lib/kde4/plugins/kscreen/KSC_XRandR.so
#11 0x00007ff7c676c87a in QMetaObject::activate (sender=0x20e4c20, m=<optimized
out>, local_signal_index=<optimized out>, argv=0x7fff8a729bf0) at
kernel/qobject.cpp:3539
#12 0x00007ff7a995c2f5 in XRandRX11Helper::outputChanged(unsigned long) () from
/usr/lib/kde4/plugins/kscreen/KSC_XRandR.so
#13 0x00007ff7a995bcde in XRandRX11Helper::x11Event(_XEvent*) () from
/usr/lib/kde4/plugins/kscreen/KSC_XRandR.so
#14 0x00007ff7c74fdeb8 in ?? () from /usr/lib/libkdeui.so.5
#15 0x00007ff7c674a35e in QAbstractEventDispatcher::filterEvent
(this=0x3dda8d0, message=0x0, message at entry=0x7fff8a729da0) at
kernel/qabstracteventdispatcher.cpp:542
#16 0x00007ff7c5b93a30 in x11EventSourceDispatch (s=0x1ed5e00, callback=0x0,
user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:143
#17 0x00007ff7c2449e04 in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007ff7c244a048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007ff7c244a0ec in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007ff7c67857be in QEventDispatcherGlib::processEvents (this=0x1e3d6d0,
flags=...) at kernel/qeventdispatcher_glib.cpp:436
#21 0x00007ff7c5b93bb6 in QGuiEventDispatcherGlib::processEvents
(this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#22 0x00007ff7c67570af in QEventLoop::processEvents
(this=this at entry=0x7fff8a72a170, flags=...) at kernel/qeventloop.cpp:149
#23 0x00007ff7c67573a5 in QEventLoop::exec (this=this at entry=0x7fff8a72a170,
flags=...) at kernel/qeventloop.cpp:204
#24 0x00007ff7c675cb79 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1225
#25 0x00007ff7b0f6cd1b in kdemain () from
/usr/lib/kde4/libkdeinit/libkdeinit4_kded4.so
#26 0x00000000004083ee in _start ()
Report to https://bugs.kde.org/
Reproducible: Always
Steps to Reproduce:
1. Plug in USB Monitor
2. Set proper modeline & enable display
3. Un-plug device
Actual Results:
Crash
Expected Results:
No Crash
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