Member Avatar for muhammad_74

On my Xubuntu desktop the mouse cursor gets sometimes stuck in drag mode (hand symbol) and although the mouse cursor moves but the pointer does not.
Does anybody has the same problem ? Is there a simple way out of it ?
I am wondering if this is a bug or some (for me) hidden screen lock feature.
The only way out of this hang is to switch to another tty and restart lightdm.
The problem mostly appears when having Firefox open and moving the cursor from the Firefox window to another. I may press a button accidentally while doing this, but I am not aware of this.

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Dani AI

Generated

Short, practical commentary based on ’s report and ’s diagnostic angle: a cursor that shows a drag/hand icon while pointer movement continues almost always means X thinks a mouse button is held, a window-manager/compositor grab didn’t clear, or an input device/receiver dropped the release event. Below are diagnosis steps and low-impact fixes that avoid a full session restart.

Immediate, safe checks and quick fixes

  • Press and release left, right and middle buttons and the wheel.
  • Reset the X input device (identify the device then disable/enable it):
xinput --list
xinput --disable <id>
xinput --enable <id>
  • Observe raw X events to confirm whether a release arrives:
xinput test <id>
xev
  • As a last-resort synthetic release (may trigger clicks in the UI):
xdotool click 1

Clearing a window-manager grab without logging out

  • For Xfce sessions, restarting only the window manager usually clears stuck grabs:
xfwm4 --replace &

(use the equivalent replace/restart command for whatever WM is in use).

Isolation and reporting

  • Test in another app, a guest/new user session, or with a different mouse/receiver to separate hardware from software causes.
  • Collect diagnostic output when reporting a bug: xinput --list, recent dmesg lines, and /var/log/Xorg.0.log, plus exact reproduction steps and the input device model. That information makes it much easier to determine whether the root cause is an application DnD bug, a compositor/WM grab, Xorg/kernel input handling, or a flaky receiver.

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Member Avatar for rubberman

What version of Xubuntu and Firefox are you running? Also, what window manager? Finally, is your mount a wireless or wired device? If wireless, is it radio, or infrared. If wired, is it USB or PS/2?

Member Avatar for muhammad_74

I am using xubuntu 14.04.1 lts with chromemium and it is a desktop pc with wireless mouse.

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