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Thread: BCM43142 Broadcom device(Bluetooth + Wifi) slows down Wifi when bluetooth is turned on

  1. #1

    Default BCM43142 Broadcom device(Bluetooth + Wifi) slows down Wifi when bluetooth is turned on

    I am using opensuse leap 15.1 on my vaio with BCM43142 as the network controller. I managed to run the bluetooth device successfully by downloading the firmware files from this link
    https://dev-pages.info/ubuntu-bluetooth/
    Now the problem is, the internet speed drops significantly the moment I turn the bluetooth to any device and doesn't recover even if I turn the bluetooth off. Only after a reboot I am able to get the actual internet speed(that I was getting before turning the bluetooth on).
    I am using broadcom-wl package from packman as the Wifi driver.
    The output for lspci is below:
    00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
    00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09)
    00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
    00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
    00:16.0 Communication controller: Intel Corporation 7 Series/C216 Chipset Family MEI Controller #1 (rev 04)
    00:1a.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #2 (rev 04)
    00:1b.0 Audio device: Intel Corporation 7 Series/C216 Chipset Family High Definition Audio Controller (rev 04)
    00:1c.0 PCI bridge: Intel Corporation 7 Series/C216 Chipset Family PCI Express Root Port 1 (rev c4)
    00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
    00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 (rev c4)
    00:1d.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #1 (rev 04)
    00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 04)
    00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
    00:1f.3 SMBus: Intel Corporation 7 Series/C216 Chipset Family SMBus Controller (rev 04)
    01:00.0 3D controller: NVIDIA Corporation GK208M [GeForce GT 740M] (rev a1)
    07:00.0 Network controller: Broadcom Limited BCM43142 802.11b/g/n (rev 01)
    08:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader (rev 01)
    0e:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)


    Thanks in advance.

  2. #2
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    Default Re: BCM43142 Broadcom device(Bluetooth + Wifi) slows down Wifi when bluetooth is turned on

    Before trying to analyze the issue any further, I suggest you remove the ubuntu firmware files and install bcm43xx-firmware
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