xev alt+prntscr

KeyPress event, serial 37, synthetic NO, window 0x5600001,
    root 0x2b9, subw 0x0, time 34428044, (126,129), root:(720,433),
    state 0x10, keycode 64 (keysym 0xffe9, Alt_L), same_screen YES,             //Alt_L pressed
    XLookupString gives 0 bytes:
    XmbLookupString gives 0 bytes:
    XFilterEvent returns: False

KeyPress event, serial 37, synthetic NO, window 0x5600001,
    root 0x2b9, subw 0x0, time 34431180, (126,129), root:(720,433),
    state 0x18, keycode 40 (keysym 0x64, d), same_screen YES,
    XLookupString gives 1 bytes: (64) "d"                                       //Alt_L kept pressed + 'd' pressed
    XmbLookupString gives 1 bytes: (64) "d"
    XFilterEvent returns: False

KeyRelease event, serial 37, synthetic NO, window 0x5600001,
    root 0x2b9, subw 0x0, time 34431255, (126,129), root:(720,433),
    state 0x18, keycode 40 (keysym 0x64, d), same_screen YES,
    XLookupString gives 1 bytes: (64) "d"
    XFilterEvent returns: False

KeyPress event, serial 37, synthetic NO, window 0x5600001,
    root 0x2b9, subw 0x0, time 34435196, (126,129), root:(720,433),
    state 0x18, keycode 30 (keysym 0x75, u), same_screen YES,
    XLookupString gives 1 bytes: (75) "u"                                       //Alt_L kept pressed + 'u' pressed
    XmbLookupString gives 1 bytes: (75) "u"
    XFilterEvent returns: False

KeyRelease event, serial 37, synthetic NO, window 0x5600001,
    root 0x2b9, subw 0x0, time 34435263, (126,129), root:(720,433),
    state 0x18, keycode 30 (keysym 0x75, u), same_screen YES,
    XLookupString gives 1 bytes: (75) "u"
    XFilterEvent returns: False

KeyRelease event, serial 37, synthetic NO, window 0x5600001,
    root 0x2b9, subw 0x0, time 34438398, (126,129), root:(720,433),
    state 0x18, keycode 64 (keysym 0xffe9, Alt_L), same_screen YES,                 //Alt_L pressed
    XLookupString gives 0 bytes:
    XFilterEvent returns: False

KeyPress event, serial 37, synthetic NO, window 0x5600001,
    root 0x2b9, subw 0x0, time 34438398, (126,129), root:(720,433),
    state 0x10, keycode 64 (keysym 0xffe9, Alt_L), same_screen YES,
    XLookupString gives 0 bytes:
    XmbLookupString gives 0 bytes:
    XFilterEvent returns: False

FocusOut event, serial 37, synthetic NO, window 0x5600001,                      //Alt_L kept pressed + 'Prntscr' pressed
    mode NotifyGrab, detail NotifyAncestor

FocusOut event, serial 37, synthetic NO, window 0x5600001,                      //Alt_L kept pressed + 'Prntscr' pressed
    mode NotifyUngrab, detail NotifyPointer

FocusIn event, serial 37, synthetic NO, window 0x5600001,                       //Alt_L kept pressed + 'Prntscr' pressed
    mode NotifyUngrab, detail NotifyAncestor

KeymapNotify event, serial 37, synthetic NO, window 0x0,
    keys:  0   0   0   0   0   0   0   0   1   0   0   0   0   0   0   0        //Alt_L kept pressed + 'Prntscr' pressed
           0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0

KeyRelease event, serial 37, synthetic NO, window 0x5600001,
    root 0x2b9, subw 0x0, time 34438398, (126,129), root:(720,433),
    state 0x18, keycode 64 (keysym 0xffe9, Alt_L), same_screen YES,                     //Alt_L released
    XLookupString gives 0 bytes:
    XFilterEvent returns: False

KeyPress event, serial 37, synthetic NO, window 0x5600001,
    root 0x2b9, subw 0x0, time 34424276, (126,129), root:(720,433),
    state 0x10, keycode 107 (keysym 0xff61, Print), same_screen YES,                    //PrntScr pressed
    XLookupString gives 0 bytes:
    XmbLookupString gives 0 bytes:
    XFilterEvent returns: False

KeyRelease event, serial 37, synthetic NO, window 0x5600001,
    root 0x2b9, subw 0x0, time 34424325, (126,129), root:(720,433),
    state 0x10, keycode 107 (keysym 0xff61, Print), same_screen YES,
    XLookupString gives 0 bytes:
    XFilterEvent returns: False