** Description changed: + [Impact] + + From the original bug: + + "The result is that on my Yoga 920, in a plain X11 session (running + openbox in my case), the touchscreen acts like a broken mouse: there is + no multi-touch capability in Qt Quick applications, and clicking isn't + quite right either." + + [Test case] + + Install the update, note that the touchscreen behaviour is better. + + [Regression potential] + + From the upstream commit: + + "Note that this change will effectively cause a feature regression for + users of other environments that do *not* have their own gesture + engines (Cinnamon, KDE, MATE, XFCE, etc.). Users will want to add an + xorg.conf.d snippet with `Option "Gesture" "on"` to bring back the + functionality." + + but at least I (tjaalton) haven't heard of any complaints since we've + disabled gestures in focal (Nov 21st), so the warning might be a bit too + pessimistic about the impact. + + + -- + /usr/share/X11/xorg.conf.d/70-wacom.conf as shipped, has this: Section "InputClass" - Identifier "Wacom touchscreen class" - MatchProduct "Wacom|WACOM|PTK-540WL|ISD-V4" - MatchDevicePath "/dev/input/event*" - MatchIsTouchscreen "true" - Driver "wacom" + Identifier "Wacom touchscreen class" + MatchProduct "Wacom|WACOM|PTK-540WL|ISD-V4" + MatchDevicePath "/dev/input/event*" + MatchIsTouchscreen "true" + Driver "wacom" EndSection The result is that on my Yoga 920, in a plain X11 session (running openbox in my case), the touchscreen acts like a broken mouse: there is no multi-touch capability in Qt Quick applications, and clicking isn't quite right either. I also verified it with Peter Hutterer's old cairo- based mt-touch test program. I suspect we will get some users mistakenly writing up Qt bugs about this if you don't ship a fix. (Seems to me that already happened at least once, actually.) Yes, the touchscreen is made by Wacom, but wacom_drv.so has historically been only for Wacom tablets and in-screen stylus digitizers, and IMO that continues to be the case. libinput is a much better choice of driver for this hardware (so is evdev for that matter), so I changed it to Driver "libinput" and got it working. (Wayland uses libinput, so in a wayland session, touch already works fine in Qt apps on this hardware.) I'm one of the Qt Quick maintainers, most concerned with touch handling, and I've also written some of the Qt xcb code for dealing with XInput touch and tablet devices. So if you think that there's something wrong with Qt, such that it should still work anyway to use a wacom driver for a Wacom touchscreen, let me know. These AES devices are still new to me (that's why I got a Yoga, to try it out). ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xserver-xorg-input-wacom 1:0.36.1-0ubuntu1 [modified: usr/share/X11/xorg.conf.d/70-wacom.conf] ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17 Uname: Linux 4.15.0-22-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 Date: Wed May 30 19:40:51 2018 DistUpgraded: Fresh install DistroCodename: bionic DistroVariant: ubuntu MachineType: LENOVO 80Y7 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-22-generic root=ZFS=rpool/ROOT/ubuntu ro SourcePackage: xf86-input-wacom UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/22/2018 dmi.bios.vendor: LENOVO dmi.bios.version: 5NCN38WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0J40709 WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 31 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo YOGA 920-13IKB dmi.modalias: dmi:bvnLENOVO:bvr5NCN38WW:bd02/22/2018:svnLENOVO:pn80Y7:pvrLenovoYOGA920-13IKB:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct31:cvrLenovoYOGA920-13IKB: dmi.product.family: YOGA 920-13IKB dmi.product.name: 80Y7 dmi.product.version: Lenovo YOGA 920-13IKB dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.91-2 version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.0~rc5-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.0~rc5-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.5-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
** Summary changed: - Wacom touchscreens should use libinput, not wacom driver + Wacom touchscreens should disable gestures -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xf86-input-wacom in Ubuntu. https://bugs.launchpad.net/bugs/1774242 Title: Wacom touchscreens should disable gestures To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xf86-input-wacom/+bug/1774242/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
