Teams crashes when sharing entire screen and notebook connected to ultrawide monitor

Question

I'm currently running the Teams app 1.3.00.24755 (64 bit) running on Windows version 1909 and build 18363.1082. The notebook is connected to a 35“ Ultrawide Curved Monitor from LG.. Notebook display scale 125% and resolution 1920 x 1080 Ultrawide monitor scale 125% and resoluton 3440 x 1440

When I am on a call and share the entire screen of the notebook or of the ultrawide monitor, the teams app completely crashes.

Relevant errors in the log file:

<9768> -- error -- [screenSharing][control] appSharingToolbar: sendMessage failed: the tooblbar does not exist <9768> -- error -- Unhandled exception occured <9768> -- error -- Unhandled exception occured TypeError: Cannot read property 'showInactive' of null at WebContents.appSharingToolbarWindow.webContents.on (Microsoft\Teams\current\resources\app.asar\lib\appSharingToolbar.js:307:46) at WebContents.emit (events.js:190:5) <9768> -- event -- name: desktop_uncaught_exception, isOnBattery: false, remainingBatteryPercentage: 100, errorStackTraceV2: TypeError: Cannot read property 'showInactive' of null at WebContents.appSharingToolbarWindow.webContents.on (Microsoft\Teams\current\resources\app.asar\lib\appSharingToolbar.js:307:46) at WebContents.emit (events.js:190:5), vdiMode: 0, eventpdclevel: 1, <9768> -- event -- isOnBattery: false, remainingBatteryPercentage: 100, errorStackTraceV2: TypeError: Cannot read property 'showInactive' of null at WebContents.appSharingToolbarWindow.webContents.on (Microsoft\Teams\current\resources\app.asar\lib\appSharingToolbar.js:307:46) at WebContents.emit (events.js:190:5), vdiMode: 0, status: success, scenario: b98eff4e-e661-4551-965f-aa40bcbc0ab5, scenarioName: desktop_uncaught_exception, name: desktop_uncaught_exception, step: start, sequence: 0, delta: 0, scenarioDelta: 0, elapsed: 92411036, stepDelta: 0, eventpdclevel: 3, Scenario.Name: desktop_uncaught_exception, Scenario.Step: start, Scenario.Status: success, <9768> -- event -- isOnBattery: false, remainingBatteryPercentage: 100, errorStackTraceV2: TypeError: Cannot read property 'showInactive' of null at WebContents.appSharingToolbarWindow.webContents.on (Microsoft\Teams\current\resources\app.asar\lib\appSharingToolbar.js:307:46) at WebContents.emit (events.js:190:5), vdiMode: 0, status: success, scenario: b98eff4e-e661-4551-965f-aa40bcbc0ab5, scenarioName: desktop_uncaught_exception, name: desktop_uncaught_exception, step: stop, sequence: 1, delta: 2, scenarioDelta: 2, elapsed: 92411038, stepDelta: 2, eventpdclevel: 3, Scenario.Name: desktop_uncaught_exception, Scenario.Step: stop, Scenario.Status: success,

<9768> -- error -- [screenSharing][control] appSharingToolbar: "this" does not bind to AppSharingToolbar object in closeWindow

Answer 1

Please install the newest graphic drivers for your computer (check also the manufacturers page, e.g. if you have an HP you can use HP Support assistant), this looks like a driver problem.