June 2007 - xmonad - Haskell.org

BEWARE: restart/StackSet change
by Spencer Janssen 13 Jun '07

13 Jun '07

Due to recent StackSet changes restart (mod-q) probably won't work correctly after you pull and build this patch: Tue Jun 12 10:05:55 CDT 2007 David Roundy <droundy(a)darcs.net> * make focus, up and down complete functions. This is a rerun of my change to make (Stack a) never be empty. Gives us more type-safety. After you've pulled this patch, build xmonad, put all your windows on the current workspace, then restart. Any windows that aren't currently visible will be lost. You only have to worry about this when upgrading from an old xmonad to the new version. Cheers, Spencer Janssen (this is a bug, I promise to fix it soon)

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darcs patch: prevent keyboard focus from getting lost in some cases
by Jason Creighton 13 Jun '07

13 Jun '07

Tue Jun 12 20:53:50 MDT 2007 Jason Creighton <jcreigh(a)gmail.com> * prevent keyboard focus from getting lost in some cases

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darcs patch: Magic Focus
by Peter De Wachter 13 Jun '07

13 Jun '07

Tue Jun 12 19:53:57 CEST 2007 Peter De Wachter <pdewacht(a)gmail.com> * Magic Focus Automatically puts the focused window in the master position. It's magic. I wrote this for the Circle layout, but it's actually usable with other layouts as well.

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darcs patch: add -fglasgow-exts to some modules that use it.
by David Roundy 13 Jun '07

13 Jun '07

Tue Jun 12 10:03:49 PDT 2007 David Roundy <droundy(a)darcs.net> * add -fglasgow-exts to some modules that use it.

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darcs patch: changes to work with Stacks that can't be empty.
by David Roundy 13 Jun '07

13 Jun '07

This fixes everything in MetaModule to work with my Stack change. David Tue Jun 12 08:12:09 PDT 2007 David Roundy <droundy(a)darcs.net> * changes to work with Stacks that can't be empty.

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darcs patch: add differentiate function to StackSet t... (and 3 more)
by David Roundy 13 Jun '07

13 Jun '07

This is my robustness set of patches, resent with a conflict resolved. David Tue Jun 12 06:28:53 PDT 2007 David Roundy <droundy(a)darcs.net> * add differentiate function to StackSet to go [a] -> Stack a. Tue Jun 12 08:05:55 PDT 2007 David Roundy <droundy(a)darcs.net> * make focus, up and down complete functions. This is a rerun of my change to make (Stack a) never be empty. Gives us more type-safety. Tue Jun 12 08:42:53 PDT 2007 David Roundy <droundy(a)darcs.net> * add catchX to catch exceptions. Tue Jun 12 10:06:25 PDT 2007 David Roundy <droundy(a)darcs.net> * resolve conflict in Operations.

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Xinerama
by Aldo Cortesi 13 Jun '07

13 Jun '07

Hi folks, I'm seeing symptoms similar to the the same Xinerama-related problem reported here: http://www.haskell.org/pipermail/xmonad/2007-June/000491.html In that same thread, Jason Creighton suggested running the following test script: """ import Graphics.X11.Xlib import Graphics.X11.Xinerama main = do d <- openDisplay "" xineramaQueryScreens d >>= print getScreenInfo d >>= print """ On my system, this outputs: """ Nothing [Rectangle {rect_x = 0, rect_y = 0, rect_width = 1920, rect_height = 1200}] """ Now the plot thickens. The following snippet of C should be very nearly equivalent to the script above: """ #include <X11/X.h> #include <X11/Xlib.h> #include <X11/extensions/Xinerama.h> #include <stdio.h> #include <stdlib.h> int main (){ Display *dpy; XineramaScreenInfo *xsi; int i, num; dpy = XOpenDisplay("\0"); printf("%s\n", XDisplayString(dpy)); if((xsi = XineramaQueryScreens(dpy, &num))) { printf("%i screens\n", num); for(i = 0; i < num; i++) { printf("%i: %ix%i\n", xsi[i].screen_number, xsi[i].width, xsi[i].height); } XFree(xsi); } XCloseDisplay(dpy); return 0; } """ However, from this, I get the following output: 2 screens 0: 1920x1200 1: 1280x1024 As you can see, the Xinerama screens are detected correctly. Xinerama under other window managers (e.g. KDE) also seems to work flawlessly with the same X configuration. Despite this is being my first real foray into Haskell, I bravely ploughed through the appropriate bindings in X11-extras and X11-1.2.2, but I could see no obvious errors. I have a hunch that the problem is related to the fact that I have an NVidia graphics card with TwinView (NVidia's magic sauce that allows you to connect multiple screens to the same GPU). Apparently, Twinview is known to cause problems with some window managers - see, for example, the FAQ section of this page from NVidia: http://http.download.nvidia.com/XFree86/Linux-x86/1.0-8178/README/appendix-… The FAQ entry is pretty vague about exactly what form these "problems" might take. I'm keen to give XMonad a try, so I'd be happy to spend time helping to troubleshoot this problem... Cheers, Aldo -- Aldo Cortesi aldo(a)nullcube.com http://www.nullcube.com Mob: 0419 492 863

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darcs patch: change keybinding for restart to Escape.
by David Roundy 12 Jun '07

12 Jun '07

I don't know whether we want to change the default bindings here, but mod-Q I find highly annoying, in that it conflicts with one of my favorite emacs commands. It seems like Escape should work as well here. David Mon Jun 11 08:56:28 PDT 2007 David Roundy <droundy(a)darcs.net> * change keybinding for restart to Escape. I get tired of the conflict with meta-Q in emacs, which causes me to keep accidentally restarting xmonad and losing my dynamic configuration.

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Tabbed layout, xinerama, strange crashing
by Dave Harrison 12 Jun '07

12 Jun '07

Hey all, I've been trying out the new tabbed layout and it was working really well for about 2 hours, then it suddenly just started killing my X for some reason. What I was finding was that as soon as I switched screens my session would die (dropping me back to the gdm login page). It would also do this if I switched to a workspace > 5. Weird eh ? I'm using the darcs head for contrib, xmonad and x11-extras, so I pulled the latest (again, just to be sure) for them and no updates. I'm also using Feisty Ubuntu as my OS if that makes any difference. I rebuilt and reinstalled, no luck. As soon as I dropped the tabbed module out and rebuilt/reinst xmonad it's all back to working again (albeit sans tabbing which I really REALLY miss now already :-) ). Not being an X guru, and not very up on haskell, I'm not sure how to try and debug this ... can anyone suggest how I might try and track this problem down ? Cheers Dave

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darcs patch: add differentiate function to StackSet t... (and 2 more)
by David Roundy 12 Jun '07

12 Jun '07

Here's the code to catch exceptions. I currently catch exceptions when calling layouts. We could add catchX calls elsewhere, if it seems advisable, but I think this is sufficient. David Tue Jun 12 06:28:53 PDT 2007 David Roundy <droundy(a)darcs.net> * add differentiate function to StackSet to go [a] -> Stack a. Tue Jun 12 08:05:55 PDT 2007 David Roundy <droundy(a)darcs.net> * make focus, up and down complete functions. This is a rerun of my change to make (Stack a) never be empty. Gives us more type-safety. Tue Jun 12 08:42:53 PDT 2007 David Roundy <droundy(a)darcs.net> * add catchX to catch exceptions.

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