Does Canvas Track Split Screen?

The useful distinction is between the operating-system layout and the activity Canvas records inside its own quiz page. Behavior can vary by quiz engine, browser, institution settings, and separate proctoring software, so there is no universal “safe” split-screen workflow.

Short Answer

• Split screen itself: Not tracked. Canvas has no way to know your window manager has placed it next to another window.
• Page departures: In supported quiz logs, leaving the quiz-taking page may appear as Stopped viewing the Canvas quiz-taking page, followed by a resumed event when you return.
• Destination: The instructor-facing event does not identify the other website, app, or window.
• Second monitors: Canvas LMS does not provide instructors a standard monitor-layout report.
• Important exception: Lockdown, proctoring, and school-managed-device software operate outside ordinary Canvas and may add restrictions or recording.

Why Canvas can't see split screen

Browsers operate inside a security sandbox that's deliberately blind to what's happening at the operating-system level. The window manager — the Windows desktop, macOS Mission Control, the Linux i3/Hyprland equivalent — arranges browser windows alongside other apps. The browser knows where its own window is in screen coordinates (via the window.screenX/screenY properties), but it has no API to ask "what other apps are on screen right now?" That would be a major privacy hole, and browser vendors have spent decades making sure it doesn't exist.

Even within a single browser, normal web pages cannot freely enumerate the contents of unrelated tabs. Browsers do expose page visibility and focus signals, but the instructor-facing Canvas documentation describes the result as leaving and resuming the quiz-taking page, not as a report of the destination.

So when you split your screen, Canvas only knows its own state. Its tab is visible? Great. Its tab is focused? Even better. What's on the other half of the monitor — a textbook PDF, a friend's Discord call, ChatGPT — is something Canvas literally cannot perceive.

What quiz logs may show

Instructure's instructor guide says a quiz log may display Stopped viewing the Canvas quiz-taking page when a student navigates away, and Resumed when the student returns. New Quizzes has its own activity-log interface, so the exact availability and presentation can differ.

The same official guide warns that quiz logs are not intended to validate academic integrity or identify cheating. A departure event records a change in the quiz session; it does not explain the student's intent, identify the destination, or rule out browser and connectivity issues.

For the broader distinction between general Canvas activity, quiz logs, and third-party monitoring, see our Canvas tracking hub and quiz log guide. You can also review the official Instructure quiz-log guide.

How to interpret the log

Do not treat window layout as a guarantee that an activity log will or will not contain a departure event. Quiz type, browser behavior, embedded content, institution settings, and technical interruptions can affect what is recorded.

If an instructor asks about a log entry, the most useful response is the context around it: what happened, whether the page or connection had a problem, and what the assessment instructions allowed. Students should follow the stated rules for notes, references, other devices, and collaboration.

What about a second monitor?

Canvas LMS does not provide instructors a standard report listing how many monitors are connected or what is displayed on them. A supported quiz log can still record that the quiz-taking page stopped being viewed, without explaining whether the cause was a second monitor, another tab, another application, or a technical interruption.

What about proctoring tools?

If your exam uses a proctoring layer on top of Canvas — Respondus LockDown Browser, Honorlock, Proctorio — the answer changes. Those tools install browser extensions or replace your browser entirely, and they can do things normal Canvas can't.

Depending on the product and settings, a proctoring tool may enforce a restricted browser, require full-screen use, or request screen, webcam, and microphone permissions. Capabilities change over time, so check the launch flow and current disclosures for the tool used by your institution.

If your exam requires a proctoring tool, the rules above (about Canvas's own focus tracking) still apply — but they're not the main concern. The proctor's webcam and screen capture are. We have a separate post on whether Canvas can detect screen sharing that goes into the proctor-versus-Canvas distinction in more detail.

Frequently Asked Questions

Does Canvas track split screen?

Canvas LMS does not show instructors your operating-system window layout. In a supported quiz activity log, leaving the quiz-taking page may appear as a departure event, but the event does not identify the other window.

Can Canvas see Windows Snap or macOS Split View?

Canvas LMS does not provide instructors a standard report of Snap Assist, Split View, or another window layout. Separate proctoring or managed-device software may have different capabilities.

Will split-screening flag me on a Canvas quiz?

Split screen is not itself an academic-integrity finding. Instructure says quiz logs are not intended to validate academic integrity, and any page-departure event needs context.

Does Canvas detect a second monitor?

Canvas LMS does not give instructors a standard report of your monitor layout. Separate lockdown, proctoring, or managed-device software can change the answer.

What about Respondus LockDown Browser?

LockDown Browser is a proctoring tool, separate from Canvas. It enforces full-screen mode and prevents split-screen by design. If your exam requires LockDown Browser, the answer changes — LockDown actively blocks the OS features that make split screen possible.