苹果触控板每隔几分钟在Ubuntu 22.04上断开连接

Question

连接苹果触控板1很容易，在Ubuntu上有很好的体验，我印象深刻的是Ubuntu22.04盒中有多少功能是从盒子里出来的。然而，触控板会在短时间内(约1M)内周期性地无法使用，蓝牙图标从菜单栏中消失，一旦它重新出现，断开的触控板就会重新连接。

在linux平台上的帖子中有很多零散的建议。我尝试过他们提出的大多数解决方案：

• 很明显，重新启动无助于(一厢情愿的想法)
• 也没有最新的内核升级(或最后几次恢复)
• 禁用upower / tlp (我在桌面上，但建议了几次)没有帮助
• 禁用usb自动挂起没有帮助。
• 禁用禁用ESCO无助于
• 在UserspaceHID中将/etc/bluetooth/input.conf设置为false没有骰子
• 使用蓝牙dongle没有帮助(我的是Broadcom .，蓝牙4.0兆瓦)
• 将btusb.enable_autosuspend=0添加到/etc/default/grub nada中
• 重新安装大多数蓝牙相关软件
• 还有我在这一点上已经忘记的大多数其他建议。

是我的触控板吗？考虑到其他人都有这个问题，我不这么认为，而且它与我的MacBook很好地结合在一起。是电源管理吗？我试着禁用它来测试它。是否如某些人所说的那样是WiFi干扰？我可以用我的无线电一天，但这似乎并不是一个解决方案。

这似乎是随机的，至少只要看一下间隔(以下是一天工作中断开的反转(我等待它重新连接时的一种消遣))。一天的时间不变

例如。断开序列之间的时间: 10m，50m，11m，2m，4m，3m，3m，25m，4m，31m，49m，8m，44m，20m

我知道这不是最新的问题，我从15.10开始就看到人们抱怨过，但我很想知道如何解决这样一个不方便的问题。

这无疑是Ubuntu特有的，并且可能是内核[ 嘿，看一份错误报告 ][ 嘿，看上去类似的蓝牙问题 ]的一个问题，但是在这个论坛上有足够的帖子，这可能会引起一些关注。

当然，它确实会迫使一个人在工作日的时候有点留心，甚至每小时一次也是..。可以忍受..。但每5分钟..。不..。

这是一些嘟嘟，请告诉我，如果有什么其他的检查，将是有帮助的！

来自lsusb |grep Bluetooth的输出：

Bus 001 Device 003: ID 8087:0aa7 Intel Corp. Wireless-AC 3168 Bluetooth

一些设备信息：

Device D8:A2:5E:FC:38:3F (public)
    Name: Trackpad (Home)
    Alias: Trackpad (Home)
    Class: 0x00002594
    Icon: input-tablet
    Paired: yes
    Trusted: yes
    Blocked: no
    Connected: yes
    WakeAllowed: yes
    LegacyPairing: no
    UUID: Human Interface Device... (00001124-0000-1000-8000-00805f9b34fb)
    UUID: PnP Information           (00001200-0000-1000-8000-00805f9b34fb)

    Modalias: usb:v05ACp030Ed0160

没有多少跳出我的日志，我找不到任何抱怨在断开之前。但如果我可能漏掉了什么，请证明我错了。与我所能找到的断开事件最接近的事件如下：

sudo btmon良好的断开连接片段(即触控板在触摸时立即醒来)：

> ACL Data RX: Handle 256 flags 0x02 dlen 18            #7442 [hci0] 144.274773
      Channel: 65 len 14 [PSM 0 mode Basic (0x00)] {chan 65535}
        a1 28 6c c3 16 af bf 87 f7 16 2a 42 80 43        .(l.......*B.C  
> ACL Data RX: Handle 256 flags 0x02 dlen 18            #7443 [hci0] 144.286030
      Channel: 65 len 14 [PSM 0 mode Basic (0x00)] {chan 65535}
        a1 28 98 c3 16 af bf 87 f7 00 00 40 80 73        .(.........@.s  
> ACL Data RX: Handle 256 flags 0x02 dlen 18            #7444 [hci0] 144.297376
      Channel: 65 len 14 [PSM 0 mode Basic (0x00)] {chan 65535}
        a1 28 c4 c3 16 af bf 87 f7 00 00 40 80 03        .(.........@..  
< ACL Data TX: Handle 256 flags 0x00 dlen 6             #7445 [hci0] 251.361210
      Channel: 140 len 2 [PSM 0 mode Basic (0x00)] {chan 65535}
        43 47                                            CG              
< HCI Command: Exit Sniff Mode (0x02|0x0004) plen 2     #7446 [hci0] 251.361236
        Handle: 256
> HCI Event: Command Status (0x0f) plen 4               #7447 [hci0] 251.477954
      Exit Sniff Mode (0x02|0x0004) ncmd 1
        Status: Success (0x00)
> HCI Event: Number of Completed Packets (0x13) plen 5  #7448 [hci0] 251.894073
        Num handles: 1
        Handle: 256
        Count: 1
> ACL Data RX: Handle 256 flags 0x02 dlen 7             #7449 [hci0] 251.916114
      Channel: 64 len 3 [PSM 0 mode Basic (0x00)] {chan 65535}
        a3 47 51                                         .GQ             
< ACL Data TX: Handle 256 flags 0x00 dlen 6             #7450 [hci0] 251.916340
      Channel: 140 len 2 [PSM 0 mode Basic (0x00)] {chan 65535}
        43 47                                            CG              
> HCI Event: Mode Change (0x14) plen 6                  #7451 [hci0] 251.918064
        Status: Success (0x00)
        Handle: 256
        Mode: Active (0x00)
        Interval: 0.000 msec (0x0000)
> HCI Event: Number of Completed Packets (0x13) plen 5  #7452 [hci0] 251.923950
        Num handles: 1
        Handle: 256
        Count: 1
> ACL Data RX: Handle 256 flags 0x02 dlen 7             #7453 [hci0] 251.925745
      Channel: 64 len 3 [PSM 0 mode Basic (0x00)] {chan 65535}
        a3 47 51                                         .GQ             
> HCI Event: Mode Change (0x14) plen 6                  #7454 [hci0] 251.959078
        Status: Success (0x00)
        Handle: 256
        Mode: Sniff (0x02)
        Interval: 11.250 msec (0x0012)

和一个糟糕的“断电狙击”，即。我得等100万才能重新连接。

> ACL Data RX: Handle 256 flags 0x02 dlen 18          #75425 [hci0] 7978.401187
      Channel: 65 len 14 [PSM 0 mode Basic (0x00)] {chan 65535}
        a1 28 68 9a 0c ae 42 75 fc 0a 0e c1 80 22        .(h...Bu....."  
> ACL Data RX: Handle 256 flags 0x02 dlen 18          #75426 [hci0] 7978.411132
      Channel: 65 len 14 [PSM 0 mode Basic (0x00)] {chan 65535}
        a1 28 94 9a 0c ad 62 75 fc 07 0f c1 80 22        .(....bu....."  
< ACL Data TX: Handle 256 flags 0x00 dlen 6           #75427 [hci0] 7978.412946
      Channel: 140 len 2 [PSM 0 mode Basic (0x00)] {chan 65535}
        43 47                                            CG              
< HCI Command: Exit Sniff Mode (0x02|0x0004) plen 2   #75428 [hci0] 7978.412976
        Handle: 256
> HCI Event: Command Status (0x0f) plen 4             #75429 [hci0] 7978.414081
      Exit Sniff Mode (0x02|0x0004) ncmd 1
        Status: Success (0x00)
> ACL Data RX: Handle 256 flags 0x02 dlen 18          #75430 [hci0] 7978.422658
      Channel: 65 len 14 [PSM 0 mode Basic (0x00)] {chan 65535}
        a1 28 c0 9a 0c ad 62 75 fc 08 10 c1 80 22        .(....bu....."  
> HCI Event: Number of Completed Pac.. (0x13) plen 5  #75431 [hci0] 7978.423168
        Num handles: 1
        Handle: 256
        Count: 1
> ACL Data RX: Handle 256 flags 0x02 dlen 7           #75432 [hci0] 7978.423711
      Channel: 64 len 3 [PSM 0 mode Basic (0x00)] {chan 65535}
        a3 47 51                                         .GQ             
< ACL Data TX: Handle 256 flags 0x00 dlen 6           #75433 [hci0] 7978.423869
      Channel: 140 len 2 [PSM 0 mode Basic (0x00)] {chan 65535}
        43 47                                            CG              
> HCI Event: Mode Change (0x14) plen 6                #75434 [hci0] 7998.509880
        Status: Connection Timeout (0x08)
        Handle: 256
        Mode: Active (0x00)
        Interval: 0.000 msec (0x0000)
> HCI Event: Disconnect Complete (0x05) plen 4        #75435 [hci0] 7998.511077
        Status: Success (0x00)
        Handle: 256
        Reason: Connection Timeout (0x08)
@ MGMT Event: Device Disconnected (0x000c) plen 8   {0x0001} [hci0] 7998.511120
        BR/EDR Address: D8:A2:5E:FC:38:3F (Apple, Inc.)
        Reason: Connection timeout (0x01)
> HCI Event: Connect Request (0x04) plen 10           #75436 [hci0] 8019.530859
        Address: D8:A2:5E:FC:38:3F (Apple, Inc.)
        Class: 0x002594
          Major class: Peripheral (mouse, joystick, keyboards)
          Minor class: 0x25
          Limited Discoverable Mode
        Link type: ACL (0x01)
< HCI Command: Accept Connect.. (0x01|0x0009) plen 7  #75437 [hci0] 8019.530920
        Address: D8:A2:5E:FC:38:3F (Apple, Inc.)
        Role: Central (0x00)
> HCI Event: Command Status (0x0f) plen 4             #75438 [hci0] 8019.531777
      Accept Connection Request (0x01|0x0009) ncmd 1
        Status: Success (0x00)
> HCI Event: Role Change (0x12) plen 8                #75439 [hci0] 8019.680675
        Status: Success (0x00)
        Address: D8:A2:5E:FC:38:3F (Apple, Inc.)
        Role: Central (0x00)
> HCI Event: Connect Complete (0x03) plen 11          #75440 [hci0] 8019.852923
        Status: Success (0x00)
        Handle: 256
        Address: D8:A2:5E:FC:38:3F (Apple, Inc.)
        Link type: ACL (0x01)
        Encryption: Disabled (0x00)
< HCI Command: Read Remote Su.. (0x01|0x001b) plen 2  #75441 [hci0] 8019.853033
        Handle: 256
> HCI Event: Command Status (0x0f) plen 4             #75442 [hci0] 8019.853652
      Read Remote Supported Features (0x01|0x001b) ncmd 1
        Status: Success (0x00)
> HCI Event: Max Slots Change (0x1b) plen 3           #75443 [hci0] 8019.862775
        Handle: 256
        Max slots: 3
> HCI Event: Read Remote Supported... (0x0b) plen 11  #75444 [hci0] 8019.864668
        Status: Success (0x00)
        Handle: 256
        Features: 0xbd 0x02 0x04 0x38 0x08 0x00 0x00 0x00
          3 slot packets
          Encryption
          Slot offset
          Timing accuracy
          Role switch
          Sniff mode
          Power control requests
          Power control
          Enhanced inquiry scan
          Interlaced inquiry scan
          Interlaced page scan
          AFH capable peripheral
< HCI Command: Remote Name R.. (0x01|0x0019) plen 10  #75445 [hci0] 8019.864729
        Address: D8:A2:5E:FC:38:3F (Apple, Inc.)
        Page scan repetition mode: R2 (0x02)
        Page scan mode: Mandatory (0x00)
        Clock offset: 0x0000
< ACL Data TX: Handle 256 flags 0x00 dlen 10          #75446 [hci0] 8019.864736
      L2CAP: Information Request (0x0a) ident 1 len 2
        Type: Extended features supported (0x0002)

Answer 1

下面是建议重新编译内核的修正。

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1834085

问候