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Date: Mon, 20 Nov 2023 23:05:04 +0100
From: Paul Menzel <pmenzel@...gen.mpg.de>
To: Alan Stern <stern@...land.harvard.edu>
Cc: Marcel Holtmann <marcel@...tmann.org>,
Johan Hedberg <johan.hedberg@...il.com>,
Luiz Augusto von Dentz <luiz.dentz@...il.com>,
linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-usb@...r.kernel.org, linux-pm@...r.kernel.org,
Hans de Goede <hdegoede@...hat.com>,
Mike Jones <mike@...nes.io>,
Rocky Liao <quic_rjliao@...cinc.com>
Subject: Re: Qualcomm Atheros QCA61x4 keeps drawing 0.85 W despite Bluetooth
being disable in GNOME
[Cc: +Rocky Liao as Qualcomm developer]
Dear Alan,
Thank you so much for continuous support in debugging this issue.
Am 20.11.23 um 19:10 schrieb Alan Stern:
> On Mon, Nov 20, 2023 at 08:52:19AM +0100, Paul Menzel wrote:
>> Am 20.11.23 um 03:26 schrieb Alan Stern:
>>> On Sun, Nov 19, 2023 at 11:09:32PM +0100, Paul Menzel wrote:
>>>> $ sudo modprobe btusb
>>>
>>>> $ grep . /sys/bus/usb/devices/1-3/power/*
>>>> /sys/bus/usb/devices/1-3/power/active_duration:119053224
>>>> /sys/bus/usb/devices/1-3/power/async:enabled
>>>> /sys/bus/usb/devices/1-3/power/autosuspend:2
>>>> /sys/bus/usb/devices/1-3/power/autosuspend_delay_ms:2000
>>>> /sys/bus/usb/devices/1-3/power/connected_duration:148065372
>>>> /sys/bus/usb/devices/1-3/power/control:auto
>>>> /sys/bus/usb/devices/1-3/power/level:auto
>>>> /sys/bus/usb/devices/1-3/power/persist:1
>>>> /sys/bus/usb/devices/1-3/power/runtime_active_kids:0
>>>> /sys/bus/usb/devices/1-3/power/runtime_active_time:119060567
>>>> /sys/bus/usb/devices/1-3/power/runtime_enabled:enabled
>>>> /sys/bus/usb/devices/1-3/power/runtime_status:active
>>>> /sys/bus/usb/devices/1-3/power/runtime_suspended_time:28831453
>>>> /sys/bus/usb/devices/1-3/power/runtime_usage:0
>>>> /sys/bus/usb/devices/1-3/power/wakeup:disabled
>>>> ```
>>>
>>> Hmmm. It's not immediately clear why the device isn't being suspended.
>>> The btusb driver does support autosuspend.
>>>
>>> Can you also post the output from
>>>
>>> grep . /sys/bus/usb/devices/1-3:*/power/*
>>>
>>> with the driver module loaded? I should have asked for it before.
>>
>> ```
>> $ sudo modprobe btusb
>> $ sudo dmesg | tail -9
>> [319747.390712] r8152 4-1.2:1.0 enx18dbf22dccf3: carrier on
>> [320256.946094] bluetooth hci0: firmware: direct-loading firmware qca/rampatch_usb_00000302.bin
>> [320256.949333] Bluetooth: hci0: using rampatch file: qca/rampatch_usb_00000302.bin
>> [320256.949349] Bluetooth: hci0: QCA: patch rome 0x302 build 0x3e8, firmware rome 0x302 build 0x111
>> [320256.949643] usbcore: registered new interface driver btusb
>> [320257.308935] bluetooth hci0: firmware: direct-loading firmware qca/nvm_usb_00000302.bin
>> [320257.309043] Bluetooth: hci0: using NVM file: qca/nvm_usb_00000302.bin
>> [320257.336220] Bluetooth: hci0: HCI Enhanced Setup Synchronous Connection command is advertised, but not supported.
>> [320257.638188] Bluetooth: MGMT ver 1.22
>> $ /sbin/rfkill
>> ID TYPE DEVICE SOFT HARD
>> 1 wlan phy0 blocked unblocked
>> 28 bluetooth hci0 blocked unblocked
>> $ grep . /sys/bus/usb/devices/1-3:*/power/*
>> /sys/bus/usb/devices/1-3:1.0/power/async:enabled
>> /sys/bus/usb/devices/1-3:1.0/power/runtime_active_kids:0
>> /sys/bus/usb/devices/1-3:1.0/power/runtime_enabled:enabled
>> /sys/bus/usb/devices/1-3:1.0/power/runtime_status:suspended
>> /sys/bus/usb/devices/1-3:1.0/power/runtime_usage:0
>> /sys/bus/usb/devices/1-3:1.1/power/async:enabled
>> /sys/bus/usb/devices/1-3:1.1/power/runtime_active_kids:0
>> /sys/bus/usb/devices/1-3:1.1/power/runtime_enabled:enabled
>> /sys/bus/usb/devices/1-3:1.1/power/runtime_status:suspended
>> /sys/bus/usb/devices/1-3:1.1/power/runtime_usage:0
>> ```
>
> Again, nothing out of the ordinary. Maybe dynamic debugging will give
> us a clue. Try doing this:
>
> Unload the btusb module.
>
> echo module usbcore +p >/sys/kernel/debug/dynamic_debug/control
>
> Load the btusb module
>
> Make sure that Bluetooth is turned off in Gnome
>
> Wait a few seconds
>
> echo module usbcore -p >/sys/kernel/debug/dynamic_debug/control
>
> Then let's see what the dmesg log contains for that time period.
```
$ sudo modprobe -r btusb
$ sudo dmesg | tail -1
[340309.272439] usbcore: deregistering interface driver btusb
$ echo module usbcore +p | sudo tee /sys/kernel/debug/dynamic_debug/control
module usbcore +p
$ sudo modprobe btusb
$ /sbin/rfkill
ID TYPE DEVICE SOFT HARD
1 wlan phy0 unblocked unblocked
36 bluetooth hci0 blocked unblocked
$ echo module usbcore -p | sudo tee /sys/kernel/debug/dynamic_debug/control
module usbcore -p
$ sudo modprobe -r btusb
$ sudo dmesg | tail -1
[340608.761313] usbcore: deregistering interface driver btusb
$ sudo dmesg
[…]
[340309.272439] usbcore: deregistering interface driver btusb
[340560.326182] xhci_hcd 0000:00:14.0: hcd_pci_runtime_resume: 0
[340560.326214] usb usb1: usb auto-resume
[340560.326258] hub 1-0:1.0: hub_resume
[340560.326381] usb usb1-port3: status 0107 change 0000
[340560.326418] usb usb1-port4: status 0107 change 0000
[340560.326451] usb usb1-port5: status 0507 change 0000
[340560.326650] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0000
[340560.326807] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0000
[340560.373988] usb 1-3: usb auto-resume
[340560.373998] hub 1-0:1.0: state 7 ports 12 chg 0000 evt 0008
[340560.441936] usb 1-3: Waited 0ms for CONNECT
[340560.441957] usb 1-3: finish reset-resume
[340560.570940] usb 1-3: reset full-speed USB device number 2 using xhci_hcd
[340560.721096] btusb 1-3:1.0: usb_probe_interface
[340560.721126] btusb 1-3:1.0: usb_probe_interface - got id
[340560.723193] Bluetooth: hci0: HCI Enhanced Setup Synchronous
Connection command is advertised, but not supported.
[340560.728684] usbcore: registered new interface driver btusb
[340560.902021] Bluetooth: MGMT ver 1.22
[340608.761313] usbcore: deregistering interface driver btusb
```
So, unfortunately, nothing seems to be logged in the 48 seconds.
> Also, please post the output from "lsusb -v" for the Bluetooth device.
```
$ sudo lsusb -d 0cf3:e300 -v
Bus 001 Device 002: ID 0cf3:e300 Qualcomm Atheros Communications QCA61x4
Bluetooth 4.0
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.01
bDeviceClass 224 Wireless
bDeviceSubClass 1 Radio Frequency
bDeviceProtocol 1 Bluetooth
bMaxPacketSize0 64
idVendor 0x0cf3 Qualcomm Atheros Communications
idProduct 0xe300 QCA61x4 Bluetooth 4.0
bcdDevice 0.01
iManufacturer 0
iProduct 0
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x00b1
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0000 1x 0 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0000 1x 0 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0009 1x 9 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0009 1x 9 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0011 1x 17 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0011 1x 17 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0019 1x 25 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0019 1x 25 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 4
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0021 1x 33 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0021 1x 33 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 5
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0031 1x 49 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0031 1x 49 bytes
bInterval 1
Binary Object Store Descriptor:
bLength 5
bDescriptorType 15
wTotalLength 0x000c
bNumDeviceCaps 1
USB 2.0 Extension Device Capability:
bLength 7
bDescriptorType 16
bDevCapabilityType 2
bmAttributes 0x00000002
HIRD Link Power Management (LPM) Supported
Device Status: 0x0001
Self Powered
```
Kind regards,
Paul
PS: Somewhere, I saw somebody post the output of `usb-devices` from
usb-utils. So for the record:
```
$ usb-devices
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh=12
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0002 Rev=06.05
S: Manufacturer=Linux 6.5.0-4-amd64 xhci-hcd
S: Product=xHCI Host Controller
S: SerialNumber=0000:00:14.0
C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms
T: Bus=01 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
D: Ver= 2.01 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=0cf3 ProdID=e300 Rev=00.01
C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none)
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none)
E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms
T: Bus=01 Lev=01 Prnt=02 Port=03 Cnt=01 Dev#= 3 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=04f3 ProdID=2234 Rev=11.11
S: Manufacturer=ELAN
S: Product=Touchscreen
C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
I: If#= 0 Alt= 0 #EPs= 2 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid
E: Ad=02(O) Atr=03(Int.) MxPS= 32 Ivl=2ms
E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=1ms
T: Bus=01 Lev=01 Prnt=03 Port=04 Cnt=01 Dev#= 4 Spd=480 MxCh= 0
D: Ver= 2.01 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=0c45 ProdID=670c Rev=56.26
S: Manufacturer=CN09GTFMLOG008C8B7FWA01
S: Product=Integrated_Webcam_HD
C: #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=500mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=0e(video) Sub=01 Prot=00 Driver=uvcvideo
E: Ad=83(I) Atr=03(Int.) MxPS= 16 Ivl=4ms
I: If#= 1 Alt= 0 #EPs= 1 Cls=0e(video) Sub=02 Prot=00 Driver=uvcvideo
E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=5000 MxCh= 6
D: Ver= 3.00 Cls=09(hub ) Sub=00 Prot=03 MxPS= 9 #Cfgs= 1
P: Vendor=1d6b ProdID=0003 Rev=06.05
S: Manufacturer=Linux 6.5.0-4-amd64 xhci-hcd
S: Product=xHCI Host Controller
S: SerialNumber=0000:00:14.0
C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms
```
PPS: Looking through the commit log/history for
`drivers/bluetooth/btusb.c`, I found commit 7ecacafc2406 (Bluetooth:
btusb: Disable runtime suspend on Realtek devices) [1] authored on
December 5th, 2019. This is for Realtek devices though, and not Qualcomm.
[1]:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7ecacafc240638148567742cca41aa7144b4fe1e
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