Status: New Owner: ---- New issue 408 by lingyu.ma.fu: WM_TAKE_FOCUS problem when using matlab gui for Xmonad 0.9.1, cpu amd64, Ubuntu 10.04 LTS system http://code.google.com/p/xmonad/issues/detail?id=408 What steps will reproduce the problem? 1.Use "guide" command in matlab to generate a new gui. 2.Put a "edit text" component into the field. 3.Run the gui. What is the expected output? What do you see instead? The expected output should be that: Man can choose (or focus on) the "edit text" component and change the content. However the output I got was that: The "edit text" component can not be focused at all, the focus is only on the tui window, so I can not change the content inside the "edit text" component. What version of the product are you using? On what operating system? The related version of the products are: CPU : amd64 System : Ubuntu 10.04 LTS Xmonad : 0.9.1 Matlab : R2010a Java : jre1.6.0_23 Are you using an xmonad.hs? Please attach it and the output of "xmonad --recompile". I have two monitors, and I use the "gnomeConfig" instead of "defaultConfig", also the "wmname" has been set to "LG3D". My "xmonad.hs" file can be found in the attachment. By the way, it can compile and work fine, I just have this WM_TAKE_FOCUS problem. Please provide any additional information below. 1. I'm aware that there was an issue 177 befoe, which can be found here: http://code.google.com/p/xmonad/issues/detail?id=177 And it seems the "comment 33" has already resolved this problem. However I'm pretty new for using Xmonad. The words there are totally unreadble for me. Also I install Xmonad with "sudo aptitude install xmonad", and I cannot find the "Core.hs" mentioned in issue 177. In addition, issue 177 was published in 2009, I don't konw whether it still work with Ubuntu 10.04 built-in xmonad or not. Can anyone give me a step by step instruction please? For example, go to which file and paste or change which part or which line. Can I only change the "xmonad.hs" file to sovle this problem? 2. I don't have any java "gray box" problem, just the gui subcomponent can not be focused on. 3. I'm looking for the solution for a long time. There is a solution to change jre "motif21" into "motif12" and then set the enviorment variable "AWT_TOOLKIT=MToolkit". I have tested it, this solution only works for not amd64 pcs. For amd64 pc, it does NOT work at all. 4. This is the most suprising part. When starting the matlab with desktop, man can choose which jre they want to use. For me I choose "jre1.6.0_23", which means I start matlab in bash with command "export MATLAB_JAVA=~/jre1.6.0_23 && matlab". I use jre1.6.0_23 because matlab built-in java will give a grey box under Xmonad. With "jre1.6.0_23" the gui shows up, the gui "button" also works fine, only the "edit text" componet can no be focused. And here comes the most suprising part : If I use command "export MATLAB_JAVA=~/aaaaaaaaaa && matlab" to start matlab, where "~/aaaaaaaaaa" is a nonexisting directory, of course I cannot get a desktop because it cannot find any java. But the gui now works perfectly. It means although matlab lab hasn't been given any particular java path, it can still open gui and this time, the "edit text" component can be focused on and so changing the text inside is possible. I don't understand why, but it happens. Could anyone tell me why? 4. I also tried new "jdk 7", it cannot solve the problem. Under "jdk 7", the gui is a "grey box", cannot show any components, also it makes matlab very very slow. 5. In addition, I tried "openjdk-6" instead of "jdk-6", again it doesn't work. 6. Of course, the "wmname" has already been set to "LG3D" in the "xmonad.hs" file. Hope to get replys soon. Thanks in advance!! Attachments: xmonad.hs 1.5 KB