[BRLTTY] Sudden USB disconnects on Focus 40 Blue

[Frans-Willem Post]

Dear list,

Running BRLTTY 6.6 (and Orca main) under Fedora 39 with X11.





The BRLTTY service is running and active.
dmesg --follow gives me these lines, over and over again:

[  451.167748] usb 2-1: new high-speed USB device number 50 using xhci_hcd

[  451.294426] usb 2-1: Product: FOCUS 5
[  451.294430] usb 2-1: Manufacturer: Freedom Scientific
[  451.294433] usb 2-1: SerialNumber: 1234567

[  459.304865] usb 2-1: USB disconnect, device number 50





Can someone help me pinpoint the issue and make my Focus 40 work again?

Thanks and kind regards,
Frans-Willem

--

Since today, my Focus 40 Blue braille display no longer works. Fedora received an update to kernel 6.7.7, but the issue is present with kernel 6.7.6, too. I have checked the USB-cable and the connections; they are all fine. An older Focus 40 is fine, too. [ 451.294407] usb 2-1: New USB device found, idVendor=0f4e, idProduct=0114, bcdDevice= 5.81 [ 451.294421] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 456.167837] usb 2-1: usbfs: USBDEVFS_CONTROL failed cmd brltty rqt 128 rq 6 len 255 ret -110 [ 457.191813] usb 2-1: usbfs: USBDEVFS_CONTROL failed cmd brltty rqt 128 rq 6 len 255 ret -110 [ 458.215765] usb 2-1: usbfs: USBDEVFS_CONTROL failed cmd brltty rqt 128 rq 6 len 255 ret -110 I have reset the braille display to its factory defaults (Right selector + Right shift + Left mode + power), but it behaves the same, afterwards. On a different Fedora 39 system, the issue is the same. My current Focus 40 gives me the above lines in the system log, the older Focus works normally. Met de .ASC-bijlage(n) kan uw e-mailprogramma garanderen dat bovenstaand bericht van mij afkomstig is, en onderweg niet door derden is aangepast.

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