Package: libinput10 Version: 1.2.4-1 Severity: normal Tags: upstream My system is a Thinkpad with a trackpoint device. I updated my X server using apt, and when I tried using Blender I discovered I could no longer use my middle mouse button as such. Scroll wheel events were being generated instead.
I was unable to find anything in /usr/share/X11/xorg.conf.d that was activating scroll wheel emulation, and my efforts to disable scroll wheel emulation using xorg.conf.d (by adding 'Option "EmulateWheel" "off"' to various files where pointer device classes were being set up) failed to be effective. >From an online search for the problem it seems that this is a design choice built into libinput. Apparently it can be disabled by running xinput but not permanently via configuration files. From the libinput docs on "Scrolling": "On-button scrolling is enabled by default for pointing sticks. This prevents middle-button dragging; all motion events while the middle button is down are converted to scroll events." It can be disabled by this call to xinput: xinput --set-prop 'TPPS/2 IBM TrackPoint' 'libinput Button Scrolling Button' 0 Placing that call in .xsessionrc solves the immediate problem and allows me to use Blender effectively on my laptop again. But I'd like this setting to be system-wide. I recognize that for many users, having middle-button scroll wheel emulation is probably way more useful than a middle mouse button, but for me the opposite is true. Whatever default is chosen, this should be configurable at the system level and visible in xorg.conf.d. -- System Information: Debian Release: stretch/sid APT prefers testing APT policy: (500, 'testing'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.5.0-1-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages libinput10 depends on: ii libc6 2.22-7 ii libevdev2 1.4.6+dfsg-1 ii libmtdev1 1.1.5-1 ii libudev1 229-5 ii libwacom2 0.18-1 libinput10 recommends no packages. libinput10 suggests no packages. -- no debconf information
