I was able to fix this by installing the appropriate LP-PHY driver. "An unsupported BCM4312 Low-Power (LP-PHY) device was found." In my case, this command raised the following error. sudo apt-get install firmware-b43-installer Once you have confirmed that your WLAN device is supported, you may proceed to installing the driver by running the following command from Terminal window. Check the result and compare the PCI-ID (highlighted above) of your WLAN device with the driver support table posted on .Ĥ. Execute the following command from Terminal window to find out whether your PCI device is supported by the b43 and b43legacy drivers.Ġ9:00.0 Network controller : Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)ģ. Optionally, you can use the shortcut by pressing ALT+F2, type gnome-terminal then press the enter key to launch it.Ģ. Note: You can access the Terminal application from Menu -> Accessories -> Terminal. Open the Terminal window (this is similar to M$ Windows command prompt) This package provides the Broadcom Wireless BCM4352 Driver for Windows 10. Note: See also Ubuntu WifiDocs on bcm43xx drivers.ġ. The drivers are called bcm43xx in mainline kernels, and b43 and b43legacy in wireless-2.6 and 2.6.24 and later. This number is read by the driver ssb, and the correct choice for your device is made at that point. If your card is a BCM4306 Rev 2 or only has 802.11b capability, it uses b43legacy. The choice of which driver your card uses depends on the revision level of the 802.11 core. I found this site,, very helpful in solving this problem.ī43 and b43legacy are drivers for the 802.11 B/G/N family of wireless chips that Broadcom produces. After installing Linux Mint 12 on my Compaq Presario CQ40-410AU (圆4 bit) laptop, the wireless LAN Broadcom BCM4312 802.11/bg doesn't work out of the box.
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February 2023
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