197773 2019-05-10 07:34:43 -0700 [GTK] Touchscreen detection false positive 2019-05-22 07:19:15 -0700 1 1 1 Unclassified WebKit WebKitGTK Other PC Linux RESOLVED DUPLICATE 139681 Gtk P3 Normal --- 1 hi webkit-unassigned bugs-noreply cgarcia mcatanzaro oldest_to_newest 1534988 0 hi 2019-05-10 07:34:43 -0700 WebKitGTK is detecting a touch screen on my device, even though I don't have a touch screen. I'm not seeing this behavior on Firefox or Chrome. I'm running GNOME Web 3.28.1 on Elementary OS Juno (Ubuntu 18.04.2 LTS) on a Dell XPS 13 (9343). To reproduce: 1. Open GNOME Web on a device that does not have a touchscreen. 2. Open the browser developer tools. 3. Go to Console. 4. Type `window.matchMedia("(any-pointer:coarse)").matches`. 5. `true` appears. Following the same steps in Firefox or Chrome produces `false`. Alternately, this page also reproduces the problem: https://patrickhlauke.github.io/touch/touchscreen-detection/ Potential related issue: https://bugs.webkit.org/show_bug.cgi?id=144765 Thank you!! 1538151 1 cgarcia 2019-05-22 04:12:09 -0700 *** This bug has been marked as a duplicate of bug 139681 *** 1538166 2 mcatanzaro 2019-05-22 06:31:43 -0700 Are you sure this is a duplicate that would be fixed by bug #139681? This isn't about touch events, this is about window.matchMedia(). 1538174 3 cgarcia 2019-05-22 07:19:15 -0700 Yes, window.matchMedia("(any-pointer:coarse)").matches is false when building with touch events disabled.