Test from ODM. 1. install oem ISO on Dell OptiPlex 7400 2. Enable Proposed channel (Pre-released updates (focal-proposed)) 3. $sudo apt update 4. $sudo apt upgrade 5. Reboot system to make updates take effect 6. Four corners of the touch screen are sensitive, touch response speed is prompt
** Tags removed: verification-needed verification-needed-focal ** Tags added: verification-done verification-done-focal -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/2042796 Title: Ubuntu 20.04: Buttons/icons at the edge of the touchscreen don't respond to taps if they are very small Status in Mutter: Fix Released Status in OEM Priority Project: Triaged Status in gnome-shell package in Ubuntu: Fix Released Status in gnome-shell source package in Focal: Fix Committed Bug description: [ Impact ] Touchscreen touches at the left or bottom edges (within 20px) of the screen are not treated as mouse clicks. Icons only get highlighted, not launched. [ Test Plan ] 0. Find a touchscreen. 1. Set Ubuntu Dock in Panel mode (the default mode) if not already. 2. Touch as close to the edge of the screen as possible. Aim for the gap between the icon and the edge of the screen. Expect: The app launch animation occurs for each tap. Icons aren't just highlighted. [ Where problems could occur ] Anywhere in touchscreen gesture tracking or even regular touchscreen usage. As this bug demonstrates, the former is able to interfere with even simple touchscreen actions. [ Workaround ] Size the Ubuntu Dock adequately large so it is unlikely the user will touch less than 20 pixels from the edge of the screen. [ Original description ] On Dell OptiPlex 7400 AIO, go to gnome-control-center > appearance, adjust the dock icon-size to 24. It is hard to launch corner app like firefox, or trigger the launcher. The app icon gets focus but not clicked. 1. Ubuntu version 20.04.6 2. gnome-shell 3.36.9-0ubuntu0.20.04.2 3. The app or launcher is launched after a click 4. Only see focus but no app launched To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/2042796/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
