Ubuntu
linux package

  1. Bug #1872122
  2. Comment #1

Comment 1 for bug 1872122

Revision history for this message
mm (mtl-0) wrote : Re: Kernel 4.19+: Bluetooth not working; Ubuntu 20.04

I can confirm that 4.19 mainline kernel has got the error:

Linux xxx 4.19.114-0419114-generic #202004021037 SMP Thu Apr 2 14:42:12 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
hcitool lescan
Set scan parameters failed: Input/output error

@ RAW Open: hcitool (privileged) version 2.22 {0x0004} [hci0] 20:54:57.660407
< HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 #1 [hci0] 20:54:57.660419
        Type: Active (0x01)
        Interval: 10.000 msec (0x0010)
        Window: 10.000 msec (0x0010)
        Own address type: Public (0x00)
        Filter policy: Accept all advertisement (0x00)
> HCI Event: Command Complete (0x0e) plen 4 #2 [hci0] 20:54:57.779936
       LE Set Scan Parameters (0x08|0x000b) ncmd 1
        Status: Command Disallowed (0x0c)
@ RAW Close: hcitool

4.18 mainline kernel works:
Linux xxx 4.18.20-041820-generic #201812030624 SMP Mon Dec 3 11:25:55 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux