我的笔记本电脑配备了 ryzen 2500u，但是蓝牙出现了问题（我正在使用蓝牙耳机）。
在 Windows 上一切正常，但在 ubuntu 上，蓝牙会随机“禁用”自身，并且不再工作，直到重新启动 PC。
这是 dmesg 的输出：
[ 330.067339] wlo1: deauthenticating from 44:33:4c:c9:05:10 by local choice (Reason: 3=DEAUTH_LEAVING)
[ 330.067751] rtw_8723de 0000:03:00.0: sta 44:33:4c:c9:05:10 with macid 0 left
[ 330.128712] rtw_8723de 0000:03:00.0: stop vif 90:32:4b:86:2e:31 on port 0
[ 683.474765] xhci_hcd 0000:05:00.4: Mismatch between completed Set TR Deq Ptr command & xHCI internal state.
[ 683.474770] xhci_hcd 0000:05:00.4: ep deq seg = 00000000d7f2423c, deq ptr = 00000000894a44d2
[ 684.475727] xhci_hcd 0000:05:00.4: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000e address=0x0 flags=0x0000]
[ 689.572240] xhci_hcd 0000:05:00.4: xHCI host not responding to stop endpoint command.
[ 689.572244] xhci_hcd 0000:05:00.4: USBSTS: HCHalted HSE
[ 689.572266] xhci_hcd 0000:05:00.4: xHCI host controller not responding, assume dead
[ 689.572285] xhci_hcd 0000:05:00.4: HC died; cleaning up
[ 689.572336] usb 3-2: USB disconnect, device number 2
[ 689.572340] usb 3-2.1: USB disconnect, device number 3
[ 689.616385] usb 3-2.3: USB disconnect, device number 4
[ 690.919221] Lockdown: systemd-logind: hibernation is restricted; see man kernel_lockdown.7
[ 695.016159] rtw_8723de 0000:03:00.0: start vif 90:32:4b:86:2e:31 on port 0
[ 696.379705] wlo1: authenticate with 44:33:4c:c9:05:10
[ 696.635899] wlo1: send auth to 44:33:4c:c9:05:10 (try 1/3)
[ 696.637405] wlo1: authenticated
[ 696.640363] wlo1: associate with 44:33:4c:c9:05:10 (try 1/3)
[ 696.647969] wlo1: RX AssocResp from 44:33:4c:c9:05:10 (capab=0x431 status=0 aid=4)
[ 696.647994] rtw_8723de 0000:03:00.0: sta 44:33:4c:c9:05:10 joined with macid 0
[ 696.648341] wlo1: associated
[ 697.158251] IPv6: ADDRCONF(NETDEV_CHANGE): wlo1: link becomes ready
USB 控制器好像有问题???我只想使用 Linux，我该怎么办？
答案1
尝试设置iommu=soft内核参数。