Frequently Asked Question
Banner flashes on the second screen through the KVM switch
Last Updated 18 days ago
KVM switching can temporarily change the EDID, monitor order, resolution, refresh rate, or connection state reported to Windows. CICB may reposition or recreate a banner when Windows reports those display changes.
- Update the Windows display and GPU drivers and the KVM firmware when supported.
- Use matching, supported resolutions and refresh rates on both KVM paths.
- Check cables, adapters, docking stations, and KVM EDID-emulation settings.
- Run a direct-connect comparison test by connecting the affected monitor without the KVM. If flashing stops, record the KVM model, firmware, EDID mode, resolution, and refresh rate.
- Verify Windows keeps a stable monitor order and scaling value after each switch.
- Collect a CICB Diagnostics package after reproducing the issue and attach it to a support ticket. Do not include license files, private keys, databases, or credentials.
Do not assume that every second-screen flash has the same root cause; use the direct-connect comparison and collected evidence to isolate the display path.