''' $ snap connections chromium | grep usb raw-usb chromium:raw-usb :raw-usb manual $ journalctl -f | grep chromium Nov 05 18:41:42 XXXXXX audit[80101]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/proc/tty/drivers" pid=80101 comm="ThreadPoolForeg" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
... repeated several times .... Nov 05 18:42:05 XXXXXX polkitd(authority=local)[1133]: Operator of unix-session:c2 successfully authenticated as unix-user:XXXXX to gain TEMPORARY authorization for action io.snapcraft.snapd.manage-interfaces for unix-process:80462:133089573 [snap connect chromium:raw-usb] (owned by unix-user:XXXXX) ''' The alert dialog reports "No compatible devices found" -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to chromium-browser in Ubuntu. https://bugs.launchpad.net/bugs/1890365 Title: [snap] Web Serial fails to access local device Status in chromium-browser package in Ubuntu: New Bug description: A javascript-based web page works fine when accessed through Chrome, fails to recognize that any devices exist when accessed from Chromium on the same Unubtu 20.04 platform. The code includes the following snippet: const requestOptions = { filters: [{ usbVendorId: 0x1881 }] }; port = await navigator.serial.requestPort(requestOptions); await port.open({ baudrate: 9600 }); writer = port.writable.getWriter(); reader = port.readable.getReader(); Under Chrome 84.0.4147.105 (Official Build) (64-bit), ttyACM0 device is listed in the pop-up, is selectable, and can communicate. Under Chromium 84.0.4147.105 (Official Build) snap (64-bit), the pop-up contains only "No compatible devices found" message. Experimental Web Features flag is enabled in both browsers. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1890365/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
