** Description changed:

  [ Impact ]
  
  Double-click actions in GTK4 are hard to trigger with touchscreen input,
  in X11 only.
  
  That is because GTK4 will generally try to verify that the distance
  between the two clicked locations is very small, but that is difficult
  to achieve on a touchscreen. Touch input should be excluded by this
  proximity check, but this doesn't happen in X.org.
  
  Upstream bug report: https://gitlab.gnome.org/GNOME/gtk/-/issues/7508
  
  [ Test plan ]
  
  0. Find a touchscreen device (high resolution screen preferred to
  reproduce issue)
  
  1. Log-in to Ubuntu (on Xorg)
  
  2. Open Nautilus
  
  3. Double tap on a folder, moving the finger from one edge to the other
  
  4. Verify that you navigated into the folder
  
  [ Regression test plan ]
  
  1. Log-in to Ubuntu (on Xorg)
  
  2. Open Nautilus
  
  3. Double click on a folder
  
  4. Verify that you navigated into the folder
  
  [ Where problems could occur ]
  
  The patch only affects X11 and couldn't possibly regress Wayland.
  The patch affects general input handling in GTK4, so a regression test plan 
is included to ensure that the same action can still be performed with a mouse 
too.
  
+ [ Other Info ]
+ 
+ The bug status in resolute and questing is Invalid because there is no
+ Ubuntu/GNOME on Xorg anymore.
+ 
  ---
  ProblemType: Bug
  ApportVersion: 2.28.1-0ubuntu3.8
  Architecture: amd64
  CasperMD5CheckMismatches: ./.disk/casper-uuid-oem ./casper/initrd 
./casper/minimal.standard.live.hotfix.size ./casper/minimal.standard.live.size 
./casper/minimal.manifest ./casper/minimal.standard.manifest 
./casper/minimal.standard.size ./casper/minimal.hotfix.size 
./casper/minimal.standard.live.hotfix.squashfs 
./casper/minimal.standard.hotfix.squashfs ./casper/minimal.standard.hotfix.size 
./casper/minimal.hotfix.squashfs ./casper/minimal.standard.live.manifest 
./casper/minimal.size ./boot/grub/grub.cfg
  CasperMD5CheckResult: fail
  CurrentDesktop: ubuntu:GNOME
  DistributionChannelDescriptor:
   # This is the distribution channel descriptor for Ubuntu 24.04 for Dell
   # For more information see 
http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-noble-oem-24.04b-20250714-538
  DistroRelease: Ubuntu 24.04
  InstallationDate: Installed on 2025-07-15 (15 days ago)
  InstallationMedia: Ubuntu OEM 24.04.2 LTS "Noble Numbat" - Release amd64 
(20250714)
  Package: libgtk-4-1 4.14.5+ds-0ubuntu0.1
  PackageArchitecture: amd64
  ProcVersionSignature: Ubuntu 6.11.0-1025.25-oem 6.11.11
  Tags: noble
  Uname: Linux 6.11.0-1025-oem x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sudo users
  _MarkForUpload: True

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https://bugs.launchpad.net/bugs/2119065

Title:
  In X11, touchscreen double tap requires very precise input

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