Issue 557 in xmonad: xmonad grabs keyboard and mouse on focus follows mouse, reproducibly
Status: New Owner: ---- New issue 557 by joeyhe...@gmail.com: xmonad grabs keyboard and mouse on focus follows mouse, reproducibly http://code.google.com/p/xmonad/issues/detail?id=557 What steps will reproduce the problem? 1. start xmonad on my new lenovo yoga 11s laptop with provided xmonad.hs 2. use laptop for a few hours (I was seeing this at least twice a day) What is the expected output? What do you see instead? This seems to occur when moving the mouse with focus follows mouse, and switching focus from one terminal to another (I have seen it using both xfce4-terminal and the sakura terminal). Xmonad seems to grab all keyboard and mouse events, and not release them, which results in no mouse movements, clicks, or keyboard activity doing anything in either xmonad or the applications on screen. However, ctrl-alt-FN works, and if I use the console to kill all my terminals, this seems to convince xmonad to stop grabbing inputs. I also tried using the console to start xev, and confirmed that it generally saw no X events at all. I think that one time xev reported a stream of X events, as if it were getting all the traffic I had generated while trying to use my locked desktop. Also, at least twice, after a several minute delay xmonad has woken up on its own and dropped the grab. It then seemed to process all the keys I had pressed, which was disconcerting. What version of the product are you using? On what operating system? 0.11 on Debian unstable with XFCE panel 4.10.1 Are you using an xmonad.hs? Please attach it and the output of "xmonad --recompile". It's attached. Note that I have used xmonad for years without seeing this problem. I switched laptops, made some minor changes to my xmonad.hs and now it happens frequently enough to be a real productivity problem. On the other hand, if someone is looking to debug this somehow, I can probably reproduce it reliably enough to try whatever steps make sense to debug it. Attachments: xmonad.hs 7.1 KB -- You received this message because this project is configured to send all issue notifications to this address. You may adjust your notification preferences at: https://code.google.com/hosting/settings
Comment #1 on issue 557 by joeyhe...@gmail.com: xmonad grabs keyboard and mouse on focus follows mouse, reproducibly http://code.google.com/p/xmonad/issues/detail?id=557 I should mention that I usually do use unclutter -root -grab, but I turned it off as part of the process of narrowing down that xmonad was responsible for this problem. -- You received this message because this project is configured to send all issue notifications to this address. You may adjust your notification preferences at: https://code.google.com/hosting/settings
Comment #2 on issue 557 by joeyhe...@gmail.com: xmonad grabs keyboard and mouse on focus follows mouse, reproducibly http://code.google.com/p/xmonad/issues/detail?id=557 Enabled setxkbmap -option grab:break_actions, so I can press keys to break mouse and keyboard grabs. This does unfreeze the desktop, but it crashes xmonad. However, this seems to prove that the problem is xmonad somehow leaving them grabbed, -- You received this message because this project is configured to send all issue notifications to this address. You may adjust your notification preferences at: https://code.google.com/hosting/settings
Comment #3 on issue 557 by joeyhe...@gmail.com: xmonad grabs keyboard and mouse on focus follows mouse, reproducibly http://code.google.com/p/xmonad/issues/detail?id=557 The best workaround when this happens seems to be to switch to the console and run DISPLAY=:0.0 xmonad --restart. Clears it right up. -- You received this message because this project is configured to send all issue notifications to this address. You may adjust your notification preferences at: https://code.google.com/hosting/settings
Comment #4 on issue 557 by joeyhe...@gmail.com: xmonad grabs keyboard and mouse on focus follows mouse, reproducibly http://code.google.com/p/xmonad/issues/detail?id=557 I have found a way to reproduce this at will. My laptop has a touch screen. Simply touching a window that is not focused generally causes the hang. If not, touching a second window that is not focused will certianly cause the hang. Note that I have seen this same behavior when the touch screen is disabled, and I am only changing focus using the mouse pad. Perhaps I have been seeing this bug to often on this laptop due to the mouse pad being extra large and/or more sensitive. -- You received this message because this project is configured to send all issue notifications to this address. You may adjust your notification preferences at: https://code.google.com/hosting/settings
Comment #5 on issue 557 by joeyhe...@gmail.com: xmonad grabs keyboard and mouse on focus follows mouse, reproducibly http://code.google.com/p/xmonad/issues/detail?id=557 I have a theory that the problem may be caused by the mouse pointer effectively warping into the middle of a window, without for example, passing over the border between windows and so out of the previously focused window. Possibly combined with a mouse click arriving the instant the pointer arrives at its new location. -- You received this message because this project is configured to send all issue notifications to this address. You may adjust your notification preferences at: https://code.google.com/hosting/settings
Comment #6 on issue 557 by joeyhe...@gmail.com: xmonad grabs keyboard and mouse on focus follows mouse, reproducibly http://code.google.com/p/xmonad/issues/detail?id=557 I can reproduce this using the default xmonad configuration. Just tapping the touch screen locks it up with 2 terminals opened. -- You received this message because this project is configured to send all issue notifications to this address. You may adjust your notification preferences at: https://code.google.com/hosting/settings
Comment #7 on issue 557 by joeyhe...@gmail.com: xmonad grabs keyboard and mouse on focus follows mouse, reproducibly http://code.google.com/p/xmonad/issues/detail?id=557 I have found a better workaround for this bug than restarting xmonad. Since the mouse can still be moved, just use it to select some text. Somehow, this causes xmonad to release the event grab. -- You received this message because this project is configured to send all issue notifications to this address. You may adjust your notification preferences at: https://code.google.com/hosting/settings
Comment #8 on issue 557 by dradet...@gmail.com: xmonad grabs keyboard and mouse on focus follows mouse, reproducibly http://code.google.com/p/xmonad/issues/detail?id=557 I have had a similar problem: When I select a text input in firefox or chrome, sometimes the keyboard becomes unresponsive, even to C-M-fn. The mouse still responds and I can do stuff, but not fix the keyboard, even by deselecting or closing the relevant tab. I never had a spontaneous ungrab, even after leaving the laptop for some time. I never had this problem until I upgraded from ubuntu 12.10 to 13.04. I was using xmonad 0.11. I now use i3 so this is no longer my problem. -- You received this message because this project is configured to send all issue notifications to this address. You may adjust your notification preferences at: https://code.google.com/hosting/settings
Comment #9 on issue 557 by joeyhe...@gmail.com: xmonad grabs keyboard and mouse on focus follows mouse, reproducibly http://code.google.com/p/xmonad/issues/detail?id=557 I reported this bug when I'd just switched to a new laptop. I noticed that over time, the frequency of the bug happening went down. I apparently was doing something when the hardware was new to me, that I stopped doing. Probably fat-fingering its clickpad in some way was causing it to occur early on. Also, using the touch screen it's easy to reproduce the bug, but you need a touch screen (and now I keep mine turned off!) Today, I found another, perhaps better way to reproduce a similar problem. All I need is a single window open in the current workspace. I first press and hold the left Windows key (mod). Then I press and release the right Alt key (this should be identical to clicking mouse button 2, which my laptop does not allow doing in hardware.. I use xkbset to bind right Alt to mouse button 2). Then I release the left Windows key. Unlike the problem initially described, this results in the mouse movement not getting grabbed. Otherwise the behavior is as described: No key presses or mouse clicks (or focus follows mouse) has any effect, until I restart xmonad. For some reason, I can't reproduce that with the stock xmonad configuration. However, I can reproduce it with the default mouseBindings setting. If I install a custom mouseBindings that leaves off the mod-button2 binding, that naturally avoids the problem. (However, clicking on the touch screen can still cause the problem in that configuration.) BTW, I seem to see some flashing of the window border when this bug happens, as if the window lost and regained focus. -- You received this message because this project is configured to send all issue notifications to this address. You may adjust your notification preferences at: https://code.google.com/hosting/settings
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