Public bug reported:
my bluetooth can't work on 16.04, and I can't find any bluetooth devices
OS version:
ubuntu 16.04
kernel version:
Ubuntu 4.4.0-36.55-generic 4.4.16
lspci -vnvn
04:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless
Network Adapter [168c:0036] (rev 01)
Subsystem: Lenovo QCA9565 / AR9565 Wireless Network Adapter [17aa:3026]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 18
Region 0: Memory at f7200000 (64-bit, non-prefetchable) [size=512K]
Expansion ROM at f7280000 [disabled] [size=64K]
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable- Count=1/4 Maskable+ 64bit+
Address: 0000000000000000 Data: 0000
Masking: 00000000 Pending: 00000000
Capabilities: [70] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s
unlimited, L1 <64us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+
TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit
Latency L0s <4us, L1 <64us
ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp-
LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, TimeoutDis+, LTR-,
OBFF Not Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB,
EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-,
LinkEqualizationRequest-
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt-
RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
Capabilities: [140 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=01
Status: NegoPending- InProgress-
Capabilities: [160 v1] Device Serial Number 00-00-00-00-00-00-00-00
Kernel driver in use: ath9k
Kernel modules: ath9k
rfkill list all0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
root@kylin:~# modprobe -r ath9k
root@kylin:~# modprobe ath9k btcoex_enable=1
root@kylin:~# dmesg
[10360.713793] ath9k: ath9k: Driver unloaded
[10371.944735] cfg80211: World regulatory domain updated:
[10371.944741] cfg80211: DFS Master region: unset
[10371.944744] cfg80211: (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp), (dfs_cac_time)
[10371.944748] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000
mBm), (N/A)
[10371.944751] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000
mBm), (N/A)
[10371.944753] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000
mBm), (N/A)
[10371.944757] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz
AUTO), (N/A, 2000 mBm), (N/A)
[10371.944760] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz
AUTO), (N/A, 2000 mBm), (0 s)
[10371.944762] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000
mBm), (0 s)
[10371.944765] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000
mBm), (N/A)
[10371.944768] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0
mBm), (N/A)
[10371.980340] ath: phy0: WB335 2-ANT card detected
[10371.980346] ath: phy0: Set BT/WLAN RX diversity capability
[10371.989226] ath: phy0: Enable LNA combining
[10371.991578] ath: phy0: ASPM enabled: 0x43
[10371.991581] ath: EEPROM regdomain: 0x65
[10371.991582] ath: EEPROM indicates we should expect a direct regpair map
[10371.991585] ath: Country alpha2 being used: 00
[10371.991586] ath: Regpair used: 0x65
[10371.992324] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[10371.996969] ath9k 0000:04:00.0 wlp4s0: renamed from wlan0
[10371.997394] ieee80211 phy0: Atheros AR9565 Rev:1 mem=0xffffc90001f00000,
irq=18
[10372.027978] IPv6: ADDRCONF(NETDEV_UP): wlp4s0: link is not ready
[10372.042470] IPv6: ADDRCONF(NETDEV_UP): wlp4s0: link is not ready
[10372.088335] IPv6: ADDRCONF(NETDEV_UP): wlp4s0: link is not ready
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1617897
Title:
ubuntu 16.04 bluetooth can't work
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