Chrome does not detect my ROLI or LUMI piano: how to fix it
Chrome shows no MIDI device for your ROLI or LUMI piano? Check the MIDI permission, the cable and other apps. Step-by-step fixes.
Allow MIDI access
When a site asks to use your MIDI devices, click Allow. If you refused once, click the icon left of the address bar, open Site settings and set MIDI devices to Allow, then reload the page.
Use a data cable
Some USB-C cables only charge. If the piano charges but is never detected, try another cable, ideally the original one.
Close other music apps
On Windows especially, an app like a DAW can keep the keyboard busy. Close it and reload the page.
Use Chrome or Edge
Safari does not support Web MIDI, and Firefox support is limited. Use Google Chrome or Microsoft Edge on Mac or Windows.
Check that the computer sees the keyboard
On a Mac, open Audio MIDI Setup and choose Window then Show MIDI Studio: your keyboard should appear there, not greyed out. On Windows, open Device Manager and look under Sound, video and game controllers or Software devices. If the computer itself does not see the keyboard, the problem is the cable, the port or the keyboard's battery, not Chrome.
Reset the MIDI permission
Chrome remembers your choice for each site. Click the icon to the left of the web address, open Site settings, find MIDI devices and set it to Allow. Close every tab of the site, open it again and press Connect. If you use several Chrome profiles, check you are in the one where you allowed access.
Other things to try
Plug the cable directly into the computer instead of a hub. Turn the keyboard off and on again. Restart Chrome completely, not just the tab. Update Chrome. On a company-managed computer, MIDI access may be blocked by an administrator policy.
Frequently asked questions
Why does Chrome not see my MIDI keyboard?
Usually the MIDI permission was refused, the cable only charges, or another app is using the keyboard.
Does Safari support MIDI keyboards on websites?
No. Safari does not support Web MIDI. Use Chrome or Edge.
How do I allow MIDI in Chrome?
Click the icon left of the address bar, open Site settings and set MIDI devices to Allow, then reload.
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