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Install hp probook 450 g9 wifi / other drivers Ubuntu 20.04 / 22.04
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| $ sudo ubuntu-drivers autoinstall | |
| $ lspci | |
| 00:00.0 Host bridge: Intel Corporation Device 4601 (rev 04) | |
| 00:02.0 VGA compatible controller: Intel Corporation Device 46a8 (rev 0c) | |
| 00:04.0 Signal processing controller: Intel Corporation Alder Lake Innovation Platform Framework Processor Participant (rev 04) | |
| 00:06.0 PCI bridge: Intel Corporation 12th Gen Core Processor PCI Express x4 Controller #0 (rev 04) | |
| 00:06.2 PCI bridge: Intel Corporation 12th Gen Core Processor PCI Express x4 Controller #2 (rev 04) | |
| 00:08.0 System peripheral: Intel Corporation 12th Gen Core Processor Gaussian & Neural Accelerator (rev 04) | |
| 00:0d.0 USB controller: Intel Corporation Alder Lake-P Thunderbolt 4 USB Controller (rev 04) | |
| 00:14.0 USB controller: Intel Corporation Alder Lake PCH USB 3.2 xHCI Host Controller (rev 01) | |
| 00:14.2 RAM memory: Intel Corporation Alder Lake PCH Shared SRAM (rev 01) | |
| 00:15.0 Serial bus controller: Intel Corporation Alder Lake PCH Serial IO I2C Controller #0 (rev 01) | |
| 00:16.0 Communication controller: Intel Corporation Alder Lake PCH HECI Controller (rev 01) | |
| 00:1c.0 PCI bridge: Intel Corporation Device 51be (rev 01) | |
| 00:1c.7 PCI bridge: Intel Corporation Alder Lake PCH-P PCI Express Root Port #9 (rev 01) | |
| 00:1e.0 Communication controller: Intel Corporation Alder Lake PCH UART #0 (rev 01) | |
| 00:1e.2 Serial bus controller: Intel Corporation Device 51aa (rev 01) | |
| 00:1f.0 ISA bridge: Intel Corporation Alder Lake PCH eSPI Controller (rev 01) | |
| 00:1f.3 Multimedia audio controller: Intel Corporation Alder Lake PCH-P High Definition Audio Controller (rev 01) | |
| 00:1f.4 SMBus: Intel Corporation Alder Lake PCH-P SMBus Host Controller (rev 01) | |
| 00:1f.5 Serial bus controller: Intel Corporation Alder Lake-P PCH SPI Controller (rev 01) | |
| 01:00.0 3D controller: NVIDIA Corporation Device 25aa (rev a1) | |
| 02:00.0 Non-Volatile memory controller: KIOXIA Corporation Device 000c | |
| 03:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device b852 | |
| 04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15) | |
| $ hostnamectl | |
| $ sudo apt install git | |
| $ sudo apt install build-essential | |
| git clone https://github.com/HRex39/rtl8852be.git | |
| cd rtl8852be/ | |
| make -j8 | |
| sudo make install | |
| sudo modprobe 8852be | |
| OR | |
| if the driver is Intel Wi-Fi6 AX201 then; | |
| $ sudo dmesg | grep iwlwifi | |
| look for the loaded microcode version .ucode | |
| $ sudo mv /lib/firmware/iwlwifi-QuZ-a0-jf-b0-66.ucode /lib/firmware/iwlwifi-QuZ-a0-jf-b0-66.ucode.bak | |
| and backward until you find the wifi driver and wifi starts working |
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consult @hamzaz-bin-sajid