Re: document camera

Dear Fedora Experts, I've just bought an Ipevo VZ-X document camera and I've some hard times to have it running with my Linux Box (a dell precision m6800 running Fedora 31). This camera can be connected to the the laptop both via usb and wifi. I've tried both without much luck. When connected via usb the system (most of the times) correctly recognize it: > lsusb Bus 003 Device 113: ID 1778:d120 IPEVO Inc. IPEVO VZ-X But it doesn't show up in any tool I tried (Zoom, Teams, Skype, Kamoso, OBS, Cheese, guvcview, etc.) nor in the system settings. I wrote "most of the times" because it needs several turn on/off to be recognized. When it is recognized dmesg says: [25080.302042] Code: Bad RIP value. [25082.706544] usb 3-2: 9:2: cannot get min/max values for control 2 (id 9) [25082.707231] usb 3-2: USB disconnect, device number 113 [25082.950597] usb 3-2: new high-speed USB device number 114 using xhci_hcd [25083.079064] usb 3-2: New USB device found, idVendor=1778, idProduct=d120, bcdDevice=20.09 [25083.079070] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [25083.079073] usb 3-2: Product: IPEVO VZ-X [25083.079077] usb 3-2: Manufacturer: IPEVO Inc. [25083.081157] uvcvideo: Found UVC 1.00 device IPEVO VZ-X (1778:d120) [25083.084363] uvcvideo 3-2:1.0: Entity type for entity Extension 10 was not initialized! [25083.084368] uvcvideo 3-2:1.0: Entity type for entity Processing 5 was not initialized! [25083.084371] uvcvideo 3-2:1.0: Entity type for entity Camera 1 was not initialized! [25083.084561] input: IPEVO VZ-X: IPEVO VZ-X as /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/input/input129 In the remaining cases, I get from dmesg: [32124.861677] Code: Bad RIP value. [32127.116392] usb 3-1: new full-speed USB device number 122 using xhci_hcd [32127.230305] usb 3-1: device descriptor read/64, error -71 When connected via wifi, I can access it through its web configurator and I can test its functionality but only on the browser (chrome) still it doesn't show up in any other application. Ipevo provides a version of its visualization software for linux (ubuntu) https://ipevo-api-cms.s3-us-west-1.amazonaws.com/software/visualizer/down... I've tried to convert it with alien but it fails > alien -r visualizer_1.0.5.33_all.deb ... RPM build errors: Arch dependent binaries in noarch package But I'm pretty sure this will not help with the general problem. Any idea/suggestion on how to have this working? Thank you in advance for your help Walter -- _______________________________________________ users mailing list -- users(a)lists.fedoraproject.org To unsubscribe send an email to users-leave(a)lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org