Unfortunately, I no longer have access to the touch screen I was using when I filed the bug. In the mean time some things have changed, while I don't know about other things.
== Things that I don't believe has changed == The kernel still uses udev and I doubt that'll change for quite some time. Some touch screens are recognized by the kernel, and these will use evdev to report user input to X11. This means that kernel-recognized touch screens will appear as /dev/input/eventN, where N is some integer. However, the value of N will change when the machine is rebooted. If a user decides to use the 'evtouch' driver for X11, she will need some set of udev rules to make sure that the device always appears with the same name. Since 'evtouch' is not installed by default in Ubuntu, the user has to manually install. I think it is fair to assume that users that choose to install 'evtouch' has the hardware and want it to be as easy as possible to configure it. So it still makes perfect sense to install the udev rules when 'evtouch' is installed. I don't believe anything has changed here. == Things that have changed == With Peter Hutterer I have updated the 'evdev' driver for X11 (which used by default in Ubuntu, I believe) to also support touch screens. With the latest release of the 'evdev' driver all the basic stuff (such as run-time calibration) is supported. So, these days it should be possible to get a working touch screen setup without installing 'evtouch' at all. But I no longer have the hardware needed to verify this. == Conclusion == I still makes sense to install the udev rules that come with 'evtouch' when 'evtouch' is installed. These udev rules shouldn't be installed by default in Ubuntu, as the 'evdev' driver should just-work, but if the user chooses to install 'evtouch' it should be as easy as possible to configure it. Søren P.S. If you're working on touch screen support, then the last missing piece of the puzzle really seems to be calibration. A while back I posted some nice Cairo-based software for this on the xorg developer list. It still needs some updates to work with recent 'evdev' drivers, but the hard stuff is done. -- udev rules should be installed by default https://bugs.launchpad.net/bugs/242590 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
