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## Problems compiling trackballs
**Q:** How do you make a distribution independent linux binary?
**A:** Short answer, you don't. Long answer: Try statically linking all
the non-standard libraries (but not X11/GL), the most important thing;
hold your thumbs!
## Graphic cards
**Q:** The gamegraphics is very slow even though I have a whizbang 3D
graphics card
**A:** Do you have 3D acceleration working under X11? Make sure DRI is
working properly and that the game is compiled against the X11 openGL
drivers if you have compiled it yourself. To see if you have graphics
acceleration working in your X-server use the 'glxinfo' program and look
for the line "direct rendering: Yes".
## General problems using trackballs
**Q:** Trackballs is leaking huge amounts of memory
**A:** This seem to be caused by faulty openGL drivers. Or it's a bug!
**Q:** I have too little memory to run trackballs without swapping.
**A:** There are alot of things affecting the memory usage of trackballs. Try
using the commandline option `--low-memory` which uses 15megs less memory
but makes switching screens slightly slower.
**Q:** Sound is out of sync.
**A:** Shutdown any sound servers you are running (eg. artsd or esd) when
playing. Eg. run `skill artsd ; trackballs ; artswrapper`
**Q:** Trackballs fails to load complaining about a sound error
**A:** Try turning sound off by running "trackballs -m"
**Q:** Trackballs fails to load an image with a "JPEG error" or "PNG error"
even though the image exists and both libraries are present.
**A:** Try linking with a version of SDL2_image that does not dynamically
load libjpeg and libpng.
**Q:** I cannot change flags/colors in the editor as documented.
**A:** This might be caused by using keyboard layout which needs shift to get
the numbers (eg. French). Try temporarily changing keyboard layout to
Swedish or US.
**Q:** I can't get trackballs to recognise my joystick
**A:** Have you setup joystick support properly for your distribution. You can
test if you have it working properly by using the command `jstest /dev/js0`.
Does it work? If not, some hints below:
Assuming you are using a analog gameport joystick (most people are!). Make
sure you have loaded all the proper joystick modules.
modprobe ns558 # For the gameport
modprobe joydev # For general joystick support
modprobe analog # The specific driver for this joystick
Now, does it work with jstest? If not, make sure you have /dev/js*
devices setup properly.
chmod 0644 /dev/js?
Still doesn't work? Ok, we need to delete the actual device nodes and
recreate them.
cd /dev
rm js?
mkdir input
mknod input/js0 c 13 0
mknod input/js1 c 13 1
mknod input/js2 c 13 2
mknod input/js3 c 13 3
ln -s input/js0 js0
ln -s input/js1 js1
ln -s input/js2 js2
ln -s input/js3 js3
Does it work now? If not you'll have to be satisfied with using the mouse
or keyboard... sorry =(
**Q:** Sometimes when I'm playing with a joystick the ball just start
rolling of in one direction
**A:** You might have a broken joystick which gives incorrect wrapover's on
your axises. Try using the `--repair-joystick` option. Possibly in
conjunction with `--debug-joystick`
**Q:** Translations work for some languages but not others, even though
translations are installed.
**A:** Check that the matching locales (i.e., like `de_DE.UTF-8`) for the
languages are enabled on your system.
**Q:** How do I get the highscores to be recorded locally and per-user?
**A:** When running CMake, set `TRACKBALLS_HIGHSCORES_DIR` to `~`.
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