I've recompiled the kernel by myself thanks to this great howto https://help.ubuntu.com/community/Kernel/Compile.
The only change I've made was commenting out the CONFIG_PARPORT_PC_FIFO=y like Red Hat based systems do and printer works great! I am adding a patch to this bug that solves this problem and waiting for some authorised person to apply the patch and make an update of the kernel as soon as possible. ** Patch added: "Fixes this bug" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/339752/+attachment/3407050/+files/kernel.diff ** Summary changed: - Slow/stuttering printing through parallel port + CONFIG_PARPORT_PC_FIFO=y causes slow/stuttering printing through parallel port -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/339752 Title: CONFIG_PARPORT_PC_FIFO=y causes slow/stuttering printing through parallel port To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/339752/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs