Realtek RTL8821CE [10ec:c821] Subsystem [103c:831a] Bluetooth not probed

[justcomplaining]

The driver installed just fine and wifi is working but bluetooth does not.

I will gladly provide further debugging information.

Ubuntu 19.10
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu8.2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: steven 2090 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 19.10
InstallationDate: Installed on 2019-11-17 (75 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 002: ID 0408:5321 Quanta Computer, Inc. HP Webcam
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: HP HP 250 G7 Notebook PC
Package: rtl8821ce
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-29-generic root=UUID=a0cdf605-0b72-4674-a76e-ad1dbae26043 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.3.0-29.31-generic 5.3.13
RelatedPackageVersions:
 linux-restricted-modules-5.3.0-29-generic N/A
 linux-backports-modules-5.3.0-29-generic N/A
 linux-firmware 1.183.3
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
Tags: eoan
Uname: Linux 5.3.0-29-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 12/05/2018
dmi.bios.vendor: Insyde
dmi.bios.version: F.16
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 8532
dmi.board.vendor: HP
dmi.board.version: 70.22
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.16:bd12/05/2018:svnHP:pnHP250G7NotebookPC:pvrType1ProductConfigId:rvnHP:rn8532:rvr70.22:cvnHP:ct10:cvrChassisVersion:
dmi.product.family: 103C_5336AN HP 200
dmi.product.name: HP 250 G7 Notebook PC
dmi.product.sku: 6MQ54EA#ABD
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: steven 1931 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2019-11-17 (231 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 002: ID 0408:5321 Quanta Computer, Inc. HP Webcam
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Lsusb-t:
 /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 10000M
 /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M
     |__ Port 5: Dev 2, If 0, Class=Video, Driver=uvcvideo, 480M
     |__ Port 5: Dev 2, If 1, Class=Video, Driver=uvcvideo, 480M
MachineType: HP HP 250 G7 Notebook PC
Package: rtl8821ce
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-40-generic root=UUID=a0cdf605-0b72-4674-a76e-ad1dbae26043 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44
RelatedPackageVersions:
 linux-restricted-modules-5.4.0-40-generic N/A
 linux-backports-modules-5.4.0-40-generic N/A
 linux-firmware 1.187.1
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
StagingDrivers: ashmem_linux
Tags: focal staging staging
Uname: Linux 5.4.0-40-generic x86_64
UpgradeStatus: Upgraded to focal on 2020-05-18 (47 days ago)
UserGroups: adm audio cdrom dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 12/05/2018
dmi.bios.vendor: Insyde
dmi.bios.version: F.16
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 8532
dmi.board.vendor: HP
dmi.board.version: 70.22
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.16:bd12/05/2018:svnHP:pnHP250G7NotebookPC:pvrType1ProductConfigId:rvnHP:rn8532:rvr70.22:cvnHP:ct10:cvrChassisVersion:
dmi.product.family: 103C_5336AN HP 200
dmi.product.name: HP 250 G7 Notebook PC
dmi.product.sku: 6MQ54EA#ABD
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP

[QuasarApp group (quasarrapp)]

I have exactly the same problem.
Device: HP 15-db0229ur

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Adams Jensen (adamsjensen)]

In Ubuntu 19.10, bluetooth stopped working. I will try to enable it in the settings, but nothing happens.
[gnome settings screenshot](https://i.stack.imgur.com/rVlFZ.png)

When I try to turn it on using bluetoothctl, nothing comes out of the console either.

``` bash
andrei@HP-Laptop-15:~$ bluetoothctl
Agent registered
[bluetooth]# block
Missing device address argument
[bluetooth]# list
[bluetooth]# devices
No default controller available
[bluetooth]# version
Version 5.50
[bluetooth]#

```

``` bash
andrei@HP-Laptop-15:~$ hcitool scan
Device is not available: No such device
andrei@HP-Laptop-15:~$ hcitool -i dev
Invalid device: No such device
andrei@HP-Laptop-15:~$

```

``` bash
andrei@HP-Laptop-15:~$ rfkill list
1: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: no
3: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no

```

The most interesting thing is that in Ubuntu 19.04 everything worked perfectly.

[Ubfan (ubfan1)]

Did you scan the dmesg output for firmware loading errors? Try dmesg |grep -i firm and dmesg | grep 8821 and report results here.

[Adams Jensen (adamsjensen)]

judging by the log I have a slightly different device. rtl8723defw

andrei@HP-Laptop-15:~$ dmesg |grep -i firm
[ 0.574316] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[ 0.601064] acpi PNP0A08:00: [Firmware Info]: MMCONFIG for domain 0000 [bus 00-7f] only partially covers this bridge
[ 4.053223] rtl8723de: Using firmware rtlwifi/rtl8723defw.bin
[ 4.150582] [drm] Found VCN firmware Version ENC: 1.9 DEC: 1 VEP: 0 Revision: 28
[ 4.150608] [drm] PSP loading VCN firmware

andrei@HP-Laptop-15:~$ dmesg | grep 8821
andrei@HP-Laptop-15:~$

andrei@HP-Laptop-15:~$ dmesg | grep 8723
[ 3.906254] Bluetooth: hci0: RTL: rtl: examining hci_ver=08 hci_rev=000d lmp_ver=08 lmp_subver=8723
[ 3.909089] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8723d_fw.bin
[ 3.910607] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8723d_config.bin
[ 4.053223] rtl8723de: Using firmware rtlwifi/rtl8723defw.bin
[ 4.365402] rtl8723de 0000:03:00.0 wlo1: renamed from wlan0
[ 3152.626684] Modules linked in: ccm ipt_REJECT nf_reject_ipv4 xt_conntrack xt_MASQUERADE xt_CHECKSUM xt_comment xt_tcpudp iptable_mangle iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c iptable_filter bpfilter bridge stp llc dummy bnep edac_mce_amd kvm_amd ccp kvm irqbypass wl(POE) snd_hda_codec_realtek snd_hda_codec_generic crct10dif_pclmul ledtrig_audio snd_hda_codec_hdmi nls_iso8859_1 amdgpu snd_hda_intel snd_hda_codec crc32_pclmul snd_hda_core snd_hwdep rtl8723de(OE) btcoexist(OE) snd_pcm ghash_clmulni_intel snd_seq_midi phydm_mod(OE) snd_seq_midi_event amd_iommu_v2 uvcvideo rtl8723_common(OE) gpu_sched rtl_pci(OE) videobuf2_vmalloc videobuf2_memops rtlwifi(OE) videobuf2_v4l2 ttm snd_rawmidi drm_kms_helper videobuf2_common mac80211 snd_seq aesni_intel btusb videodev btrtl btbcm btintel aes_x86_64 input_leds crypto_simd cryptd glue_helper joydev mc drm bluetooth snd_seq_device serio_raw snd_timer cfg80211 i2c_algo_bit fb_sys_fops snd hp_wmi sparse_keymap
[ 3159.217700] Bluetooth: hci0: RTL: rtl: examining hci_ver=08 hci_rev=000d lmp_ver=08 lmp_subver=8723
[ 3159.220781] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8723d_fw.bin
[ 3159.220815] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8723d_config.bin
[ 3239.735601] Bluetooth: hci0: RTL: rtl: examining hci_ver=08 hci_rev=000d lmp_ver=08 lmp_subver=8723
[ 3239.738625] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8723d_fw.bin
[ 3239.738776] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8723d_config.bin
[ 3303.181816] Bluetooth: hci0: RTL: rtl: examining hci_ver=08 hci_rev=000d lmp_ver=08 lmp_subver=8723
[ 3303.184755] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8723d_fw.bin
[ 3303.184790] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8723d_config.bin
[44168.994673] Bluetooth: hci0: RTL: rtl: examining hci_ver=08 hci_rev=000d lmp_ver=08 lmp_subver=8723
[44168.998906] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8723d_fw.bin
[44168.999021] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8723d_config.bin
[52414.792590] Bluetooth: hci0: RTL: rtl: examining hci_ver=08 hci_rev=000d lmp_ver=08 lmp_subver=8723
[52414.794532] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8723d_fw.bin
[52414.794572] Bluetooth: hci...

[Adams Jensen (adamsjensen)]

I created a new RTL8723D driver error report.
https://bugs.launchpad.net/ubuntu/+source/linux-oem/+bug/1860833

[justcomplaining (justcomplaining)]

dmesg |grep -i firm

[ 0.147142] Spectre V2 : Enabling Restricted Speculation for firmware calls
[ 3.101456] [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4)

dmesg | grep 8821

[ 2.333385] rtl8821ce: loading out-of-tree module taints kernel.
[ 2.403456] rtl8821ce: module verification failed: signature and/or required key missing - tainting kernel
[ 2.435475] RTW: rtl8821ce v5.2.5.2.1_xxxx.20181112_beta
[ 2.435480] RTW: rtl8821ce BT-Coex version = COEX20170310-1212
[ 4.599321] rtl8821ce 0000:02:00.0 wlo1: renamed from wlan0

[justcomplaining (justcomplaining)]

Some possibly related stuff:

https://github.com/tomaspinho/rtl8821ce/issues/19
https://bugzilla.kernel.org/show_bug.cgi?id=201921

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1853665

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[justcomplaining (justcomplaining)]

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[Kai-Heng Feng (kaihengfeng)]

Seems like USB device is gone. Please try cold boot and collect log again.

[ofek luis lewinsohn (o-l-lewinsohn)]

Same problem on Asus UX410UA reverting to kernel 5.3.0-26 seems to solve it though so I assume the problem lies on the new kernel.

[justcomplaining (justcomplaining)]

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[justcomplaining (justcomplaining)]

Cold booting did nothing, the device is not showing up.

hcitool scan
Device is not available: No such device

hcitool -i dev
Invalid device: No such device
steven@swiffundweg:~$ rfkill list
0: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: no

hciconfig -a

sudo hciconfig hci0 up
Can't get device info: No such device

lsusb -t
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 10000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M
    |__ Port 5: Dev 2, If 0, Class=Video, Driver=uvcvideo, 480M
    |__ Port 5: Dev 2, If 1, Class=Video, Driver=uvcvideo, 480M

dmesg | grep Bluetooth
[ 5461.107139] Bluetooth: Core ver 2.22
[ 5461.107184] Bluetooth: HCI device and connection manager initialized
[ 5461.107191] Bluetooth: HCI socket layer initialized
[ 5461.107194] Bluetooth: L2CAP socket layer initialized
[ 5461.107199] Bluetooth: SCO socket layer initialized

dmesg |grep -i firm
[ 0.148580] Spectre V2 : Enabling Restricted Speculation for firmware calls
[ 2.538572] [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4)
s

dmesg | grep 8821
[ 2.481014] rtl8821ce: loading out-of-tree module taints kernel.
[ 2.520129] rtl8821ce: module verification failed: signature and/or required key missing - tainting kernel
[ 2.916376] rtl8821ce 0000:02:00.0 wlo1: renamed from wlan0

bluetoothctl
Waiting to connect to bluetoothd...

[Kai-Heng Feng (kaihengfeng)]

Can you please cold boot and attach `dmesg`?

[justcomplaining (justcomplaining)]

dmesg
[ 0.000000] microcode: microcode updated early to revision 0xd6, date = 2020-04-27
[ 0.000000] Linux version 5.4.0-40-generic (buildd@lcy01-amd64-011) (gcc version 9.3.0 (Ubuntu 9.3.0-10ubuntu2)) #44-Ubuntu SMP Tue Jun 23 00:01:04 UTC 2020 (Ubuntu 5.4.0-40.44-generic 5.4.44)
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-5.4.0-40-generic root=UUID=a0cdf605-0b72-4674-a76e-ad1dbae26043 ro quiet splash vt.handoff=7
[ 0.000000] KERNEL supported cpus:
[ 0.000000] Intel GenuineIntel
[ 0.000000] AMD AuthenticAMD
[ 0.000000] Hygon HygonGenuine
[ 0.000000] Centaur CentaurHauls
[ 0.000000] zhaoxin Shanghai
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x008: 'MPX bounds registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR'
[ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
[ 0.000000] x86/fpu: xstate_offset[3]: 832, xstate_sizes[3]: 64
[ 0.000000] x86/fpu: xstate_offset[4]: 896, xstate_sizes[4]: 64
[ 0.000000] x86/fpu: Enabled xstate features 0x1f, context size is 960 bytes, using 'compacted' format.
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x00000000000937ff] usable
[ 0.000000] BIOS-e820: [mem 0x0000000000093800-0x000000000009ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007a6aefff] usable
[ 0.000000] BIOS-e820: [mem 0x000000007a6af000-0x000000007b49efff] reserved
[ 0.000000] BIOS-e820: [mem 0x000000007b49f000-0x000000007bb8efff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x000000007bb8f000-0x000000007bc0efff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x000000007bc0f000-0x000000007bc0ffff] usable
[ 0.000000] BIOS-e820: [mem 0x000000007bc10000-0x000000007f7fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000e0000000-0x00000000efffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fe000000-0x00000000fe010fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fed10000-0x00000000fed19fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fed84000-0x00000000fed84fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000ff300000-0x00000000ffffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000027e7fffff] usable
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] SMBIOS 3.0 present.
[ 0.000000] DMI: HP HP 250 G7 Notebook PC/8532, BIOS F.16 12/05/2018
[ 0.000000] tsc: Detected 1800.000 MHz processor
[ 0.004513] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[ 0.004516] e820: remove [mem 0x000a0000-0x000fffff] usable
[ 0.004523] last_pfn = 0x27e800 max_arch_pfn = 0x400000000
[ 0.004528] MTRR default type: uncachable
[ 0.004529] MTRR fixed ranges enabled:
[ 0.004531] 00000-9FFFF write-back
[ 0...

[Kai-Heng Feng (kaihengfeng)]

Unfortunately it doesn't seem to present on USB bus. Maybe it's disabled in BIOS?

[justcomplaining (justcomplaining)]

I checked the BIOS and it is enabled there.

[Kai-Heng Feng (kaihengfeng)]

Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.8-rc4/

Install the kernel, cold boot and and attach `dmesg` here, thanks!

[justcomplaining (justcomplaining)]

[ 0.000000] microcode: microcode updated early to revision 0xd6, date = 2020-04-27
[ 0.000000] Linux version 5.8.0-050800-generic (kernel@gloin) (gcc (Ubuntu 9.3.0-13ubuntu1) 9.3.0, GNU ld (GNU Binutils for Ubuntu) 2.34) #202007052030 SMP Mon Jul 6 00:37:33 UTC 2020
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-5.8.0-050800-generic root=UUID=a0cdf605-0b72-4674-a76e-ad1dbae26043 ro quiet splash vt.handoff=7
[ 0.000000] KERNEL supported cpus:
[ 0.000000] Intel GenuineIntel
[ 0.000000] AMD AuthenticAMD
[ 0.000000] Hygon HygonGenuine
[ 0.000000] Centaur CentaurHauls
[ 0.000000] zhaoxin Shanghai
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x008: 'MPX bounds registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR'
[ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
[ 0.000000] x86/fpu: xstate_offset[3]: 832, xstate_sizes[3]: 64
[ 0.000000] x86/fpu: xstate_offset[4]: 896, xstate_sizes[4]: 64
[ 0.000000] x86/fpu: Enabled xstate features 0x1f, context size is 960 bytes, using 'compacted' format.
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x00000000000937ff] usable
[ 0.000000] BIOS-e820: [mem 0x0000000000093800-0x000000000009ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007a6aefff] usable
[ 0.000000] BIOS-e820: [mem 0x000000007a6af000-0x000000007b49efff] reserved
[ 0.000000] BIOS-e820: [mem 0x000000007b49f000-0x000000007bb8efff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x000000007bb8f000-0x000000007bc0efff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x000000007bc0f000-0x000000007bc0ffff] usable
[ 0.000000] BIOS-e820: [mem 0x000000007bc10000-0x000000007f7fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000e0000000-0x00000000efffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fe000000-0x00000000fe010fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fed10000-0x00000000fed19fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fed84000-0x00000000fed84fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000ff300000-0x00000000ffffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000027e7fffff] usable
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] SMBIOS 3.0 present.
[ 0.000000] DMI: HP HP 250 G7 Notebook PC/8532, BIOS F.16 12/05/2018
[ 0.000000] tsc: Detected 1800.000 MHz processor
[ 0.001822] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[ 0.001825] e820: remove [mem 0x000a0000-0x000fffff] usable
[ 0.001832] last_pfn = 0x27e800 max_arch_pfn = 0x400000000
[ 0.001837] MTRR default type: uncachable
[ 0.001838] MTRR fixed ranges enabled:
[ 0.001840] 00000-9FFFF write-back
[ 0.001841] ...

[Kai-Heng Feng (kaihengfeng)]

There's only WebCam on USB bus. Have you tried Windows?

[justcomplaining (justcomplaining)]

No, I have not tried Windows and I don't have access to one atm...

[Kai-Heng Feng (kaihengfeng)]

Can you please try power-reset your laptop:
https://support.hp.com/us-en/document/c01684768

[justcomplaining (justcomplaining)]

I followed the instructions but have no idea whether it worked or not (I can't take the battery out so I had to take the 15-seconds-power-button route).

[ 0.000000] microcode: microcode updated early to revision 0xd6, date = 2020-04-27
[ 0.000000] Linux version 5.8.0-050800-generic (kernel@gloin) (gcc (Ubuntu 9.3.0-13ubuntu1) 9.3.0, GNU ld (GNU Binutils for Ubuntu) 2.34) #202007052030 SMP Mon Jul 6 00:37:33 UTC 2020
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-5.8.0-050800-generic root=UUID=a0cdf605-0b72-4674-a76e-ad1dbae26043 ro quiet splash vt.handoff=7
[ 0.000000] KERNEL supported cpus:
[ 0.000000] Intel GenuineIntel
[ 0.000000] AMD AuthenticAMD
[ 0.000000] Hygon HygonGenuine
[ 0.000000] Centaur CentaurHauls
[ 0.000000] zhaoxin Shanghai
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x008: 'MPX bounds registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR'
[ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
[ 0.000000] x86/fpu: xstate_offset[3]: 832, xstate_sizes[3]: 64
[ 0.000000] x86/fpu: xstate_offset[4]: 896, xstate_sizes[4]: 64
[ 0.000000] x86/fpu: Enabled xstate features 0x1f, context size is 960 bytes, using 'compacted' format.
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x00000000000937ff] usable
[ 0.000000] BIOS-e820: [mem 0x0000000000093800-0x000000000009ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007a6aefff] usable
[ 0.000000] BIOS-e820: [mem 0x000000007a6af000-0x000000007b49efff] reserved
[ 0.000000] BIOS-e820: [mem 0x000000007b49f000-0x000000007bb8efff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x000000007bb8f000-0x000000007bc0efff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x000000007bc0f000-0x000000007bc0ffff] usable
[ 0.000000] BIOS-e820: [mem 0x000000007bc10000-0x000000007f7fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000e0000000-0x00000000efffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fe000000-0x00000000fe010fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fed10000-0x00000000fed19fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fed84000-0x00000000fed84fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000ff300000-0x00000000ffffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000027e7fffff] usable
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] SMBIOS 3.0 present.
[ 0.000000] DMI: HP HP 250 G7 Notebook PC/8532, BIOS F.16 12/05/2018
[ 0.000000] tsc: Detected 1800.000 MHz processor
[ 0.001815] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[ 0.001817] e820: remove [mem 0x000a0000-0x000fffff] usable
[ 0.001824] last_pfn = 0x27e800 max_arch_pfn = 0...

[Kai-Heng Feng (kaihengfeng)]

No nothing. My suggestion is to install Windows, and if there's no bluetooth, service the hardware to HP.

[Dan Jones (danezjonez)]

I have the same laptop with Ubuntu 20.04.2 and same problem with the Bluetooth adapter. After reading this thread, I made a win10 USB boot drive, shortly after booting it the Bluetooth adapter was detected and i paired it with my phone. I got the below info from powershell.

Caption : Realtek Bluetooth 4.2 Adapter
Description : Realtek Bluetooth 4.2 Adapter
InstallDate :
Name : Realtek Bluetooth 4.2 Adapter
Status : OK
Availability :
ConfigManagerErrorCode : CM_PROB_NONE
ConfigManagerUserConfig : False
CreationClassName : Win32_PnPEntity
DeviceID : USB\VID_0BDA&PID_B00A\00E04C000001
ErrorCleared :
ErrorDescription :
LastErrorCode :
PNPDeviceID : USB\VID_0BDA&PID_B00A\00E04C000001
PowerManagementCapabilities :
PowerManagementSupported :
StatusInfo :
SystemCreationClassName : Win32_ComputerSystem
SystemName : DESKTOP-VDB4J5I
ClassGuid : {e0cbf06c-cd8b-4647-bb8a-263b43f0f974}
CompatibleID : {USB\Class_E0&SubClass_01&Prot_01, USB\Class_E0&SubClass_01, USB\Class_E0}
HardwareID : {USB\VID_0BDA&PID_B00A&REV_0110, USB\VID_0BDA&PID_B00A}
Manufacturer : Realtek Semiconductor Corp.
PNPClass : Bluetooth
Present : True
Service : BTHUSB
PSComputerName :
Class : Bluetooth
FriendlyName : Realtek Bluetooth 4.2 Adapter
InstanceId : USB\VID_0BDA&PID_B00A\00E04C000001
Problem : CM_PROB_NONE
ProblemDescription :

[Antonio Giménez (antanins)]

ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.25
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: antanins 1633 F.... pulseaudio
 /dev/snd/pcmC0D0p: antanins 1633 F...m pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2019-04-11 (1379 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 0408:5321 Quanta Computer, Inc. HP Webcam
 Bus 001 Device 002: ID 046d:c077 Logitech, Inc. M105 Optical Mouse
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Lsusb-t:
 /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 10000M
 /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M
     |__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
     |__ Port 5: Dev 3, If 0, Class=Video, Driver=uvcvideo, 480M
     |__ Port 5: Dev 3, If 1, Class=Video, Driver=uvcvideo, 480M
MachineType: HP HP 250 G7 Notebook PC
Package: rtl8821ce
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=es_ES.UTF-8
 SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-137-generic root=UUID=93d3f06d-3ff8-46ee-87b2-e127c83d1dfa ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.4.0-137.154-generic 5.4.218
RelatedPackageVersions:
 linux-restricted-modules-5.4.0-137-generic N/A
 linux-backports-modules-5.4.0-137-generic N/A
 linux-firmware 1.187.35
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
Tags: focal
Uname: Linux 5.4.0-137-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm bluetooth cdrom davfs2 dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 01/18/2019
dmi.bios.vendor: Insyde
dmi.bios.version: F.17
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 8532
dmi.board.vendor: HP
dmi.board.version: 70.26
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.17:bd01/18/2019:svnHP:pnHP250G7NotebookPC:pvrType1ProductConfigId:rvnHP:rn8532:rvr70.26:cvnHP:ct10:cvrChassisVersion:
dmi.product.family: 103C_5336AN HP 200
dmi.product.name: HP 250 G7 Notebook PC
dmi.product.sku: 6HL13EA#ABE
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP

[Antonio Giménez (antanins)]

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[Antonio Giménez (antanins)]

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[Antonio Giménez (antanins)]

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[Antonio Giménez (antanins)]

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[Antonio Giménez (antanins)]

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[Antonio Giménez (antanins)]

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[Antonio Giménez (antanins)]

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[Antonio Giménez (antanins)]

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[Antonio Giménez (antanins)]

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[Antonio Giménez (antanins)]

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[Antonio Giménez (antanins)]

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[Antonio Giménez (antanins)]

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[Antonio Giménez (antanins)]

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[Antonio Giménez (antanins)]

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[Antonio Giménez (antanins)]

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