Hi, I am really struggling to install Linux on a brand new Acer Aspire 5750G. I have tried with Ubuntu 10.10, 11.04, 11.10 (32bit and 64bit) and with Mint 12 32bit - both from CD and USB (built with Unetbootin). I always get an error message that sounds more or less like this: udevd[113]: '/sbin/modprobe -bv pci:V000010DEd00000DEAsv00001025sd00000505bc03sc00 i00' [201] terminated bi signal 9 (Killed) Since I've read that nvidia optimus may be the reason of the troubles, I tried to disable the nvidia graphic card in order to use only the integrated graphic card (choosing 'integrated' instead of 'switchable' in the bios) but it didn't help much. It seems that people have several troubles with this 5750G, but at least they installed Linux. I can't even find the way to install it! Does anyone have any suggestion? Hi I'm new with Linux and i was just wondering if some one can help me get the drivers working the drivers iv noticed that arnt working is the network card and the sound card in using backtrack 5 R2 and my laptop is the acer aspire 5750 thanks. Free Download Acer Aspire 5750G Broadcom WLAN Driver 5.100.235.19 for Windows 7 64-bit (Network Card). Ingredients • Laptop Acer Aspire V11 Touch • Ubuntu 16.04 (kernel 4.4.0-45) • Additional driver 'Broadcom 802.11 Linux STA wireless device' in use • lspci -knn| grep Net -A2 02:00.0 Network controller [0280]: Broadcom Limited BCM43142 802.11b/g/n [14e4:4365] (rev 01) Subsystem: Foxconn International, Inc. BCM43142 802.11b/g/n [105b:e07e] Kernel modules: bcma, wl • rfkill list 0: acer-wireless: Wireless LAN Soft blocked: no Hard blocked: no 1: acer-bluetooth: Bluetooth Soft blocked: no Hard blocked: no 2: hci0: Bluetooth Soft blocked: no Hard blocked: no Issue I cannot see any option to enable the wireless device from the applet main menu bar. As a result I cannot activate and use the wi-fi. Research I am almost-fully aware of this extensive post on, but installation is not the point. However, I have followed the uninstall/install sequence: sudo apt-get purge bcmwl-kernel-source sudo apt update sudo update pciids sudo apt install firmware-b43-install sudo reboot sudo apt install bcmwl-kernel-source # corresponds to my PCI id 14e4:4365 (rev 01) sudo rfkill unblock all # for good measure to no avail. Note that at sudo apt install bcmwl-kernel-source a dialogue window asks permission to disable Secure Boot by typing an ad hoc password. It claims it will be asked later, although I did not see it being asked again. Interestingly, from this bounty-winning answer, I could see with lspci -nn| grep -i BCM that my network controller is a BCM43142 that might not be supported by the STA driver. This is way too esoteric for me, but it may provide a clue to the expert. I am also aware of other posts that deal with earlier Ubuntu versions, but I would dearly avoid guesswork and find an answer that applies to 16.04 safely. Question Please could you provide a list of simple steps to regain the possibility to enable the wifi from the menu bar? If you need to refer to verbose posts, please indicate which answer is applicable according to you and in which way it integrates the actions undertaken above. In my experience the problem comes up for either of two reasons, or both: • secure boot in the boot set-up utility is enabled. It should be disabled instead. Thanks to user Pilot6 for pointing this out in the comments above. • a new kernel does not cope well with the network and wi-fi settings. In my case the solution 1 works with kernel 3.19.0-77-generic or 4.4.0-45-generic, but not with the later 4.4.0-53-generic. To splash into an older reliable kernel, at boot time I go into the 'Advanced Ubuntu Options' of the boot loader rather than using the standard 'Ubuntu'. I am presented with this choice at restart since I have a dual boot system: if you don't, you can press the shift key at boot time to have this choice presented to you. See for a way to select an earlier kernel version as boot-time default automatically, using Grub Customizer. To know which kernel the system is running on type uname -r in the command line (the output is a subset of uname -a). This problem occurred with both Ubuntu 14.04 and 16.04. I then presume that the release specification is immaterial.
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