SUMMARY Migrating our RHEL 9 VDI VMs from Gnome Desktop to KDE Plasma Workspace and some of the devices that we are able to use on Gnome desktop are not being detected on the KDE. One device is an external CD/DVD Burner that is plugged into a 10zig thin client, the other is an secure USB drive. They work on the RHEL 9 Gnome VM, but the KDE VM (Cloned from the Gnome and just has KDE Installed) does not seem to load the drivers correctly from what I can gather from the logs. The logs on the KDE VM see that a device is plugged in but, nothing happens. The device doesn't show up in lsusb, lsblk or udisksctl status. STEPS TO REPRODUCE 1. Plug in USB Device to 2. Enable (Connect) the device through Horizon OBSERVED RESULT This is for the CD/DVD Drive, but the results for the secure USB are the same. Device is not mounted. Output from /var/log/messages when the device is attached: Jan 10 09:21:17 KDE01 kernel: usb 4-11: new SuperSpeed USB device number 32 using usb_vhci_hcd Jan 10 09:21:17 KDE01 kernel: usb 4-11: new SuperSpeed USB device number 32 using usb_vhci_hcd Jan 10 09:21:17 KDE01 kernel: usb usb4-port11: cannot disable (err = -32) Jan 10 09:21:18 KDE01 kernel: usb 4-11: new SuperSpeed USB device number 33 using usb_vhci_hcd Jan 10 09:21:18 KDE01 kernel: usb 4-11: new SuperSpeed USB device number 33 using usb_vhci_hcd Jan 10 09:21:18 KDE01 kernel: usb usb4-port11: cannot disable (err = -32) Jan 10 09:21:18 KDE01 kernel: usb usb4-port11: attempt power cycle Jan 10 09:21:19 KDE01 kernel: usb usb4-port11: cannot disable (err = -32) Jan 10 09:21:19 KDE01 kernel: usb usb4-port11: cannot disable (err = -32) EXPECTED RESULT Result from working VM: Jan 10 18:04:03 G-RHEL9 kernel: usb 4-1: new SuperSpeed USB device number 2 using usb_vhci_hcd Jan 10 18:04:03 G-RHEL9 kernel: usb 4-1: New USB device found, idVendor=0b05, idProduct=1aec, bcdDevice= 1.00 Jan 10 18:04:03 G-RHEL9 kernel: usb 4-1: New USB device strings: Mfr=2, Product=3, SerialNumber=1 Jan 10 18:04:03 G-RHEL9 kernel: usb 4-1: Product: External Drive Jan 10 18:04:03 G-RHEL9 kernel: usb 4-1: Manufacturer: Jan 10 18:04:03 G-RHEL9 kernel: usb 4-1: SerialNumber: AAAABBBB000E Jan 10 18:04:03 G-RHEL9 mtp-probe[19142]: checking bus 4, device 2: "/sys/devices/platform/usb_vhci_hcd.0/usb4/4-1" Jan 10 18:04:03 G-RHEL9 mtp-probe[19142]: bus: 4, device: 2 was not an MTP device Jan 10 18:04:03 G-RHEL9 kernel: usb-storage 4-1:1.0: USB Mass Storage device detected Jan 10 18:04:03 G-RHEL9 kernel: scsi host33: usb-storage 4-1:1.0 Jan 10 18:04:03 G-RHEL9 kernel: usbcore: registered new interface driver usb-storage Jan 10 18:04:03 G-RHEL9 kernel: usbcore: registered new interface driver uas Jan 10 18:04:03 G-RHEL9 mtp-probe[19151]: checking bus 4, device 2: "/sys/devices/platform/usb_vhci_hcd.0/usb4/4-1" Jan 10 18:04:03 G-RHEL9 mtp-probe[19151]: bus: 4, device: 2 was not an MTP device SOFTWARE/OS VERSIONS Windows: macOS: (available in the Info Center app, or by running `kinfo` in a terminal window) Linux/KDE Plasma: RHEL 9.4 KDE Plasma Version: 5.27.11 KDE Frameworks Version: 5.115.0 Qt Version: 5.15.9 ADDITIONAL INFORMATION
> The device doesn't show up in lsusb, lsblk or udisksctl status. This suggests the problem is below any KDE code. You say that it works on GNOME; is it in the same VM? If it is in the same VM, are you saying that the devices still don't show up in show up in lsusb, lsblk or udisksctl status, but do show in in GNOME GUI apps? That would be odd. What I'm getting at here is that this doesn't seem like a KDE issue, as KDE isn't responsible for device drivers or block disks. I'm also CCing a very smart person familiar with Redhat stuff who may know more.
🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME. For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging. Thank you for helping us make KDE software even better for everyone!
🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.