Hi Giuliano, (CC'ing linux-media and Ricardo) On Tue, Jan 10, 2023 at 02:11:54PM +0100, Giuliano Lotta wrote: > UPDATE: > after resuming the nobebook, the system crashed with the following message: > > usb 3-6: Failed to query (SET_CUR) UVC control 4 on unit 1: -32 (exp. 4) > uvcvideo 3-6:1.0: reset_resume error -5 > > WHERE / HOW may I find other useful information to debug the problem ? That doesn't seem like a crash, but it's not nice. Does the webcam stop functioning after that ? Ricardo, the device is a Bus 003 Device 003: ID 0408:4035 Quanta Computer, Inc. ACER HD User Facing Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.01 bDeviceClass 239 Miscellaneous Device bDeviceSubClass 2 bDeviceProtocol 1 Interface Association bMaxPacketSize0 64 idVendor 0x0408 Quanta Computer, Inc. idProduct 0x4035 bcdDevice 0.04 iManufacturer 1 Quanta iProduct 2 ACER HD User Facing iSerial 3 01.00.00 bNumConfigurations 1 Does it ring a bell ? > Il giorno mar 10 gen 2023 alle ore 12:21 Laurent Pinchart ha scritto: > > On Tue, Jan 10, 2023 at 07:57:21AM +0100, Giuliano Lotta wrote: > > > Hi Laurent, > > > I just realized that the VIDOE has NO AUDIO.... > > > > > > Trying a webcam test site like : https://it.webcamtests.com/ > > > it says that the webcam does not have a microphone. > > > > > > Any idea on how to solve this problem ? > > > > Well, your webcam does not have a microphone :-) It's integrated in a > > laptop, so audio is handled through your laptop audio device. -- Regards, Laurent Pinchart