[BRLTTY] Sudden USB disconnects on Focus 40 Blue

[Frans-Willem Post]

Hello all,

I'm sorry to report: the issue is back again; it only disappeared 
temporarily after the firmware update.

When I start my system, I hear the PC-speaker's sound of the BRLTTY 
service starting. Orca starts and announces "Screen reader on". I log in 
and after about three seconds, I hear the BRLTTY service stopping. Orca 
goes silent and in the dmesg log, I see the connect - 3x error - disconnect.

usbfs: USBDEVFS_CONTROL failed cmd brltty rqt
 >> 128 rq 6 len 255 ret -110

I already have tried a) a previous kernel (6.7.6 instead of 6.7.7), and 
b) orca from the Fedora repos (i.e. not main or gnome-46 branch). The 
issue persists.

So, once again, can someone help me solve this issue?

Thanks,
Frans-Willem


On 05-03-2024 15:07, Frans-Willem Post wrote:
> Hello all,
> 
> Sorry for the noise. After updating the display's firmware version to 
> 5.82-26 inside a Windows virtual machine, the display is back in working 
> order.
> 
> Issue solved, kind regards,
> Frans-Willem
> 
> On 05-03-2024 10:51, Frans-Willem Post wrote:
>> Dear list,
>>
>> Running BRLTTY 6.6 (and Orca main) under Fedora 39 with X11.
>>
>> 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.
>>
>> 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
>> [  451.294407] 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
>> [  451.294426] usb 2-1: Product: FOCUS 5
>> [  451.294430] usb 2-1: Manufacturer: Freedom Scientific
>> [  451.294433] usb 2-1: SerialNumber: 1234567
>> [  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
>> [  459.304865] usb 2-1: USB disconnect, device number 50
>>
>> 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.
>>
>> Can someone help me pinpoint the issue and make my Focus 40 work again?
>>
>> Thanks and kind regards,
>> Frans-Willem
>>
> 

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