Xmodmap and “XKB: Couldn’t compile keymap”

A while ago when I upgraded my distribution, several keys went wonky on me and ceased functioning according to my wishes. It was a minor inconvenience to have things like the Caps Lock key become enabled again. So I pecked around at fixing it here and there, but never really put in much thought or effort until today.

I remap my keys with the /etc/X11/xinit/.Xmodmap (aka ~/.Xmodmap) file. The problem was my .Xmodmap was borking when X started, so no remappings were taking place. (If one part of .Xmodmap fails, they all fail.) In my /var/log/Xorg.0.log I found this:


(EE) Error compiling keymap (server-0)
(EE) XKB: Couldn't compile keymap
(WW) Couldn't load XKB keymap, falling back to pre-XKB keymap

And in the output from X – apparently from the keymap compiler (xkbcomp) – were repeated warnings/errors like this:


Warning:   Duplicate shape name ""
                 Using last definition
Error:        Section defined without a name
                 Definition ignored
Warning:   Multiple doodads named ""
                 Using first definition

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Fluxbox In-Depth: Mad Customization And Other Tips

Introduction

When I was first preparing to switch to Linux many years ago, I went into research mode and looked around the net a bit. At the time, part of the allure of Linux were the crazy cool desktops people had. After I switched I tried Gnome, then KDE, and was depressed at how uncool and *dozelike they were. Eventually, I discovered that all those amazing desktops were the result of Fluxbox (or the other *box forks). I switched immediately.

To my surprise, I found that not only was I able to get a really cool appearance, but Fluxbox made all the things I wanted out of a window manager, and some I didn’t know I wanted, simple. It turned out that I was not the only user to have noticed those operating system limitations and failings I’d been grumbling about for years, particularly with *doze. The Fluxbox crew apparently knew my pain and had gone about addressing all of those complaints.

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