Bug#665004: possible "solution"
I found a "solution" for this bug.
I look into the GIT repo for this package.
I noted in the changelog of 188.8.131.521-1 the following line:
Multitouch isn't enabled yet (it would require a newer server anyway).
Looking into configure.ac I spotted
PKG_CHECK_MODULES(XI22, [inputproto >= 184.108.40.206] [xorg-server >= 220.127.116.111], HAVE_XI22="yes", HAVE_XI22="no")
if test "x$HAVE_XI22" = xyes; then
AC_DEFINE(HAVE_MULTITOUCH, 1, [XI2.2 available])
but currently in Debian/testing x11proto-input-dev=inputproto is at 2.1
and xserver-xorg-dev=xorg-server is at 1.11.4
whereas in Debian/experimental x11proto-input-dev is at 18.104.22.168-1 ,
xserver-xorg-dev is at 1.12.0-1
So I issued
# apt-get -t experimental install x11proto-input-dev xserver-xorg-dev
and moreover it turned out that I needed
# apt-get install libmtdev-dev
This way I could compile the "synaptics" module with multitouch enabled;
unfortunately the resulting module has ABI 16, whereas the server has ABI 13;
to install the server from experimental, I also had to recompile
xserver-xorg-input-evdev so that it now has ABI 16 as well.
I installed the synaptics and evdev modules, and the server from
experimental, and it all works fine.
I attach anyway the patch to the GIT repo.
So the solution may be to upload a version with my patch to experimental,
and similarly for x---evdev, so people that want to upgrade
and still use multitouch may use that; and in due time move it all to
unstable and to testing.
NB : I use the proprietary nvidia driver ; I did not recompile it in any
ps: And, just in case I can confirm the bug . I use a MacBook 5.1.
swipe two fingers on pad -> scrolling
click on touchpad with two/3 fingers -> right/center mouse click
do not work with the synaptic package now in unstable.
diff --git a/debian/changelog b/debian/changelog
index 21adbd7..652d629 100644
@@ -1,3 +1,9 @@
+xserver-xorg-input-synaptics (22.214.171.1242-2) unstable; urgency=low
+ * enable multitouch
+ -- A Mennucc1 <firstname.lastname@example.org> Thu, 05 Apr 2012 15:18:43 +0200
xserver-xorg-input-synaptics (126.96.36.1992-1) unstable; urgency=low
* New upstream release candidate (1.6 RC2).
diff --git a/debian/control b/debian/control
index 87ddf23..10a52f1 100644
@@ -11,10 +11,12 @@ Build-Depends:
libxi-dev (>= 2:1.2.0),
- xserver-xorg-dev (>= 2:1.9.4),
+ x11proto-input-dev (>= 188.8.131.52),
+ xserver-xorg-dev (>= 2:184.108.40.2061),
- xutils-dev (>= 1:7.5+4)
+ xutils-dev (>= 1:7.5+4),