the first command didnt work.
Nemi108, please address this question.
bro im a noob, i dont know to check that.
Please see the instructions here:
ohh got it , yes power saving is disabled. imma turn it on.
it didnt work.
How many bluetooth devices do you have? If only One device, it may be that it is the problem and so bluetooth is not activating due to no detectable devices.
If you can borrow a known working device like a keyboard or speaker or ear buds from a friend, you may be able to test if other devices are recognized.
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i tried connecting to other devices but still didnt work. i have tlp on this linux machine. is that causing the problem.
If tlp is configured to shut off Bluetooth to save power, this can have an impact. Disable power saving for Bluetooth in tlp and test.
broo this is not a single problem, sometimes headset wouldnt connect and sometimes this problem occurs. Sometimes headset connects but still sound doesnt come from the headset.
Sorry, My English Is not so good.
You might need to use the iommu=off grub parameter.
What is the terminal output for
lsusb; dmesg | egrep -i 'blue|firm'
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Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0bda:b00e Realtek Semiconductor Corp. Bluetooth Radio
Bus 001 Device 003: ID 30c9:0013 DJKCVA19IFXSJ4 HP TrueVision HD Camera
Bus 001 Device 002: ID 062a:4c01 MosArt Semiconductor Corp. 2.4G INPUT DEVICE
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
[ 0.112878] Spectre V2 : Enabling Speculation Barrier for firmware calls
[ 0.283399] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[ 0.308332] acpi PNP0A08:00: [Firmware Info]: MMCONFIG for domain 0000 [bus 00-7f] only partially covers this bridge
[ 1.706777] [drm] Loading DMUB firmware via PSP: version=0x01010019
[ 1.706957] [drm] Found VCN firmware Version ENC: 1.16 DEC: 5 VEP: 0 Revision: 3
[ 1.706972] amdgpu 0000:03:00.0: amdgpu: Will use PSP to load VCN firmware
[ 2.593944] usb 1-4: Product: Bluetooth Radio
[ 6.115898] Bluetooth: Core ver 2.22
[ 6.115947] NET: Registered PF_BLUETOOTH protocol family
[ 6.115948] Bluetooth: HCI device and connection manager initialized
[ 6.115953] Bluetooth: HCI socket layer initialized
[ 6.115955] Bluetooth: L2CAP socket layer initialized
[ 6.115959] Bluetooth: SCO socket layer initialized
[ 6.377187] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 6.377194] Bluetooth: BNEP filters: protocol multicast
[ 6.377201] Bluetooth: BNEP socket layer initialized
[ 6.457952] Bluetooth: hci0: RTL: examining hci_ver=08 hci_rev=000c lmp_ver=08 lmp_subver=8821
[ 6.459423] Bluetooth: hci0: RTL: rom_version status=0 version=1
[ 6.459430] Bluetooth: hci0: RTL: loading rtl_bt/rtl8821c_fw.bin
[ 6.461945] Bluetooth: hci0: RTL: loading rtl_bt/rtl8821c_config.bin
[ 6.462324] Bluetooth: hci0: RTL: cfg_sz 10, total sz 31990
[ 7.038957] Bluetooth: hci0: RTL: fw version 0x829a7644
[ 15.472754] Bluetooth: RFCOMM TTY layer initialized
[ 15.472767] Bluetooth: RFCOMM socket layer initialized
[ 15.472776] Bluetooth: RFCOMM ver 1.11
[ 156.153006] Modules linked in: rfcomm cmac algif_hash algif_skcipher af_alg bnep uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 btusb btrtl videobuf2_common btbcm btintel videodev bluetooth mc ecdh_generic ecc nls_iso8859_1 intel_rapl_msr joydev snd_acp3x_pdm_dma snd_soc_dmic snd_acp3x_rn snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine intel_rapl_common edac_mce_amd kvm_amd snd_hda_codec_realtek kvm snd_hda_codec_generic ledtrig_audio crct10dif_pclmul ghash_clmulni_intel snd_hda_codec_hdmi aesni_intel crypto_simd snd_hda_intel cryptd snd_intel_dspcfg rapl snd_intel_sdw_acpi snd_hda_codec snd_hda_core snd_hwdep input_leds snd_seq_midi snd_seq_midi_event binfmt_misc hp_wmi hid_multitouch sparse_keymap snd_rawmidi platform_profile serio_raw snd_seq snd_pci_acp6x snd_pcm wmi_bmof snd_pci_acp5x rtl8821ce(OE) snd_seq_device snd_timer snd snd_rn_pci_acp3x snd_pci_acp3x soundcore ccp k10temp cfg80211 mac_hid wireless_hotkey amd_pmc acpi_tad sch_fq_codel msr parport_pc ppdev lp
[ 232.740723] Modules linked in: rfcomm cmac algif_hash algif_skcipher af_alg bnep uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 btusb btrtl videobuf2_common btbcm btintel videodev bluetooth mc ecdh_generic ecc nls_iso8859_1 intel_rapl_msr joydev snd_acp3x_pdm_dma snd_soc_dmic snd_acp3x_rn snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine intel_rapl_common edac_mce_amd kvm_amd snd_hda_codec_realtek kvm snd_hda_codec_generic ledtrig_audio crct10dif_pclmul ghash_clmulni_intel snd_hda_codec_hdmi aesni_intel crypto_simd snd_hda_intel cryptd snd_intel_dspcfg rapl snd_intel_sdw_acpi snd_hda_codec snd_hda_core snd_hwdep input_leds snd_seq_midi snd_seq_midi_event binfmt_misc hp_wmi hid_multitouch sparse_keymap snd_rawmidi platform_profile serio_raw snd_seq snd_pci_acp6x snd_pcm wmi_bmof snd_pci_acp5x rtl8821ce(OE) snd_seq_device snd_timer snd snd_rn_pci_acp3x snd_pci_acp3x soundcore ccp k10temp cfg80211 mac_hid wireless_hotkey amd_pmc acpi_tad sch_fq_codel msr parport_pc ppdev lp
Successfully added the grub parameter
Wow, that is a bit more output than I expected. But everything there looks good with all modules initiated.
I admit, I am a bit surprised... I thought we would see a bunch of driver failures or something.
Have you run
sudo update-grub
and rebooted and tested your bluetooth since adding the parameter?
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its working great now, but i have to test it for few days.
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After resuming from suspend or sleep, what is the terminal output of:
rfkill list
You might try
sudo apt install --reinstall bluez
Reboot - suspend - Wake and test.
If still no good, check if laptop-mode-tools package is installed. If it is not installed, please do not install it.
You also might try adding at the end of your ~/.profile file the line
service bluetooth restart
to ensure it runs upon each login.
