Page up/down not scrolling but still working












1














I have this problem which also temporarily happened yesterday, where my PageUp/PageDown keys still physically work but do not scroll.



Using them in combination with modifiers works perfectly: using them with Ctrl still changes tab in Firefox, using Shift can still allow me to scroll in the terminal.



They are still registered as when I press them alone there is some flashing of the current window (in the terminal the cursor blinks, in Firefox the sidebar flashes) but no movement occurs.



Running xev when in this state returns some sort of event for the keys:



FocusOut event, serial 48, synthetic NO, window 0x3c00001,
mode NotifyGrab, detail NotifyAncestor

FocusIn event, serial 48, synthetic NO, window 0x3c00001,
mode NotifyUngrab, detail NotifyAncestor

KeymapNotify event, serial 48, synthetic NO, window 0x0,
keys: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0


But not a KeyPress/KeyRelease event. Last night this went away by itself, but I'm not really sure what has triggered it nor what has triggered it away.



I'm in Lubuntu 18.04, if that can help.



EDIT: For reference, normally xev returns



KeyPress event, serial 48, synthetic NO, window 0x2a00001,
root 0x5e3, subw 0x0, time 57346975, (652,584), root:(2333,632),
state 0x0, keycode 117 (keysym 0xff56, Next), same_screen YES,
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False

KeyRelease event, serial 48, synthetic NO, window 0x2a00001,
root 0x5e3, subw 0x0, time 57347127, (652,584), root:(2333,632),
state 0x0, keycode 117 (keysym 0xff56, Next), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False

KeyPress event, serial 48, synthetic NO, window 0x2a00001,
root 0x5e3, subw 0x0, time 57347575, (652,584), root:(2333,632),
state 0x0, keycode 112 (keysym 0xff55, Prior), same_screen YES,
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False

KeyRelease event, serial 48, synthetic NO, window 0x2a00001,
root 0x5e3, subw 0x0, time 57347671, (652,584), root:(2333,632),
state 0x0, keycode 112 (keysym 0xff55, Prior), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False


For the two keys.










share|improve this question





























    1














    I have this problem which also temporarily happened yesterday, where my PageUp/PageDown keys still physically work but do not scroll.



    Using them in combination with modifiers works perfectly: using them with Ctrl still changes tab in Firefox, using Shift can still allow me to scroll in the terminal.



    They are still registered as when I press them alone there is some flashing of the current window (in the terminal the cursor blinks, in Firefox the sidebar flashes) but no movement occurs.



    Running xev when in this state returns some sort of event for the keys:



    FocusOut event, serial 48, synthetic NO, window 0x3c00001,
    mode NotifyGrab, detail NotifyAncestor

    FocusIn event, serial 48, synthetic NO, window 0x3c00001,
    mode NotifyUngrab, detail NotifyAncestor

    KeymapNotify event, serial 48, synthetic NO, window 0x0,
    keys: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
    0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0


    But not a KeyPress/KeyRelease event. Last night this went away by itself, but I'm not really sure what has triggered it nor what has triggered it away.



    I'm in Lubuntu 18.04, if that can help.



    EDIT: For reference, normally xev returns



    KeyPress event, serial 48, synthetic NO, window 0x2a00001,
    root 0x5e3, subw 0x0, time 57346975, (652,584), root:(2333,632),
    state 0x0, keycode 117 (keysym 0xff56, Next), same_screen YES,
    XLookupString gives 0 bytes:
    XmbLookupString gives 0 bytes:
    XFilterEvent returns: False

    KeyRelease event, serial 48, synthetic NO, window 0x2a00001,
    root 0x5e3, subw 0x0, time 57347127, (652,584), root:(2333,632),
    state 0x0, keycode 117 (keysym 0xff56, Next), same_screen YES,
    XLookupString gives 0 bytes:
    XFilterEvent returns: False

    KeyPress event, serial 48, synthetic NO, window 0x2a00001,
    root 0x5e3, subw 0x0, time 57347575, (652,584), root:(2333,632),
    state 0x0, keycode 112 (keysym 0xff55, Prior), same_screen YES,
    XLookupString gives 0 bytes:
    XmbLookupString gives 0 bytes:
    XFilterEvent returns: False

    KeyRelease event, serial 48, synthetic NO, window 0x2a00001,
    root 0x5e3, subw 0x0, time 57347671, (652,584), root:(2333,632),
    state 0x0, keycode 112 (keysym 0xff55, Prior), same_screen YES,
    XLookupString gives 0 bytes:
    XFilterEvent returns: False


    For the two keys.










    share|improve this question



























      1












      1








      1







      I have this problem which also temporarily happened yesterday, where my PageUp/PageDown keys still physically work but do not scroll.



      Using them in combination with modifiers works perfectly: using them with Ctrl still changes tab in Firefox, using Shift can still allow me to scroll in the terminal.



      They are still registered as when I press them alone there is some flashing of the current window (in the terminal the cursor blinks, in Firefox the sidebar flashes) but no movement occurs.



      Running xev when in this state returns some sort of event for the keys:



      FocusOut event, serial 48, synthetic NO, window 0x3c00001,
      mode NotifyGrab, detail NotifyAncestor

      FocusIn event, serial 48, synthetic NO, window 0x3c00001,
      mode NotifyUngrab, detail NotifyAncestor

      KeymapNotify event, serial 48, synthetic NO, window 0x0,
      keys: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
      0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0


      But not a KeyPress/KeyRelease event. Last night this went away by itself, but I'm not really sure what has triggered it nor what has triggered it away.



      I'm in Lubuntu 18.04, if that can help.



      EDIT: For reference, normally xev returns



      KeyPress event, serial 48, synthetic NO, window 0x2a00001,
      root 0x5e3, subw 0x0, time 57346975, (652,584), root:(2333,632),
      state 0x0, keycode 117 (keysym 0xff56, Next), same_screen YES,
      XLookupString gives 0 bytes:
      XmbLookupString gives 0 bytes:
      XFilterEvent returns: False

      KeyRelease event, serial 48, synthetic NO, window 0x2a00001,
      root 0x5e3, subw 0x0, time 57347127, (652,584), root:(2333,632),
      state 0x0, keycode 117 (keysym 0xff56, Next), same_screen YES,
      XLookupString gives 0 bytes:
      XFilterEvent returns: False

      KeyPress event, serial 48, synthetic NO, window 0x2a00001,
      root 0x5e3, subw 0x0, time 57347575, (652,584), root:(2333,632),
      state 0x0, keycode 112 (keysym 0xff55, Prior), same_screen YES,
      XLookupString gives 0 bytes:
      XmbLookupString gives 0 bytes:
      XFilterEvent returns: False

      KeyRelease event, serial 48, synthetic NO, window 0x2a00001,
      root 0x5e3, subw 0x0, time 57347671, (652,584), root:(2333,632),
      state 0x0, keycode 112 (keysym 0xff55, Prior), same_screen YES,
      XLookupString gives 0 bytes:
      XFilterEvent returns: False


      For the two keys.










      share|improve this question















      I have this problem which also temporarily happened yesterday, where my PageUp/PageDown keys still physically work but do not scroll.



      Using them in combination with modifiers works perfectly: using them with Ctrl still changes tab in Firefox, using Shift can still allow me to scroll in the terminal.



      They are still registered as when I press them alone there is some flashing of the current window (in the terminal the cursor blinks, in Firefox the sidebar flashes) but no movement occurs.



      Running xev when in this state returns some sort of event for the keys:



      FocusOut event, serial 48, synthetic NO, window 0x3c00001,
      mode NotifyGrab, detail NotifyAncestor

      FocusIn event, serial 48, synthetic NO, window 0x3c00001,
      mode NotifyUngrab, detail NotifyAncestor

      KeymapNotify event, serial 48, synthetic NO, window 0x0,
      keys: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
      0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0


      But not a KeyPress/KeyRelease event. Last night this went away by itself, but I'm not really sure what has triggered it nor what has triggered it away.



      I'm in Lubuntu 18.04, if that can help.



      EDIT: For reference, normally xev returns



      KeyPress event, serial 48, synthetic NO, window 0x2a00001,
      root 0x5e3, subw 0x0, time 57346975, (652,584), root:(2333,632),
      state 0x0, keycode 117 (keysym 0xff56, Next), same_screen YES,
      XLookupString gives 0 bytes:
      XmbLookupString gives 0 bytes:
      XFilterEvent returns: False

      KeyRelease event, serial 48, synthetic NO, window 0x2a00001,
      root 0x5e3, subw 0x0, time 57347127, (652,584), root:(2333,632),
      state 0x0, keycode 117 (keysym 0xff56, Next), same_screen YES,
      XLookupString gives 0 bytes:
      XFilterEvent returns: False

      KeyPress event, serial 48, synthetic NO, window 0x2a00001,
      root 0x5e3, subw 0x0, time 57347575, (652,584), root:(2333,632),
      state 0x0, keycode 112 (keysym 0xff55, Prior), same_screen YES,
      XLookupString gives 0 bytes:
      XmbLookupString gives 0 bytes:
      XFilterEvent returns: False

      KeyRelease event, serial 48, synthetic NO, window 0x2a00001,
      root 0x5e3, subw 0x0, time 57347671, (652,584), root:(2333,632),
      state 0x0, keycode 112 (keysym 0xff55, Prior), same_screen YES,
      XLookupString gives 0 bytes:
      XFilterEvent returns: False


      For the two keys.







      keyboard scrolling






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Jan 6 at 3:12







      Svalorzen

















      asked Jan 6 at 2:42









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