Frequently Asked Question
Banner flashes on the second screen through the KVM switch
Last Updated 2 months 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.