Lenovo s21e 20 linux

Lenovo s21e 20 linux

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Lenovo S21e netbook touchpad and wireless problems solved with kernel and driver update

November 2016. Lenovo S21e now runs Ubuntu 16.04 ‘Xenial Xerus’ with one important software addition. Add the following programs to make the sou nd card play sound. sudo apt-get install the following three programs. broadcom-sta-common — Common files for the Broadcom STA Wireless driver broadcom-sta-dkms — dkms source for the Broadcom STA Wireless driver broadcom-sta-source — Source for the Broadcom STA Wireless driver The short story is the Lenovo S21e was not included in the Lenovo laptops that had manufacturer’s support for Ubuntu. Christian of alpha-labs.net determined kernel components had been dropped and he got a kernel hacker to add in the needed components and he published a kernel that I know of as 4.1.6-lenovo-s21e. Ubuntu 16.04 uses a kernel with most of what the Lenovo S21e needs. Just add the three Broadcom software packages. I have not tested if the updated kernels allow Skype to use the Lenovo S21e internal microphone yet. The internal mike problem has to do with the internal microphone being a mono device and the sound mixer software is expecting a stereo device. Or perhaps vice versa. The internal microphone records, as with the arecord command: arecord test ; ctrl-c to end aplay test ; poor quality sound but it does work. Best wishes on getting your S21e running. PS, I used a USB adapter with an ethernet socket to provide a fast wired Internet connection while doing the software installations mentioned above. The 16.04 LTS installation had to run over night, due to many components being installed and configured. Definitely provide AC power before starting the 16.04 upgrade. Linux user and administrator Christian at alpha-labs.net has found a fix for the broken touchpad and broken wireless functionality when Ubuntu 14.4 is installed on the Lenovo S21e laptop computer. The date is November 2015 and Christians fixes replace kernel -3.16.0-30 with a new kernel -4.1.6-lenovo-s21e. The kernel change fix the touchpad. Christian also supplies a modified wireless device driver that fixes yet again yet another technicality of the Broadcom device inside the Lenovo S21e. For Linux newbies and those like myself who forget a lot, Post number 31 or 33 on the following web site is a keystroke by keystroke supportive commentary of fixing your Lenovo S21e. https://alpha-labs.net/2015/08/lenovo-s21e-linux-and-the-touchpad/ I recommend you consider buying a USB 3.0 Three port hub with a Gigabit Ethernet jack to provide a working data connection while fixing the built in wireless. My junkbox wireless dongle was worthless. During and after the fixes, I still need a mouse to do copy and paste and I like the stunningly fast wired hardware connection. I just bought a $200 Lenovo S21e 11″ screen netbook with a 32 Gig drive and I installed Ubuntu 14.4 LTS. I have the classic repeating new computer aggravations Over the past 10 years I have gotten used to sticking the latest Ubuntu boot CD into a slot and getting a wonderful and stable dual boot computer. Apparently UEFI and the proprietary hardware geniuses are throwing up more and more compound stumbling blocks preventing Ubuntu from being easy to install. Thanks so much for starting Askubuntu and when I get this puppy fixed, I’ll post the steps here for others to use.

I upgraded my Lenovo S21e to use the November 2016 Ubuntu 16.4 and I lost my built in wireless device. Here is the easy temporary fix: Reboot your Lenovo S21e and select «Advanced options for Ubuntu» at the boot menu. Then on the advanced options page select «Ubuntu with Linux 4.1.6-lenovo-s21e. This item is the old kernel described by Christian on the alpha-labs.net web site mentioned above. Ahh. while working out a fix for the new kernel you can boot the old kernel.

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Linux Mint Forums

Lenovo S21e lost wifi upon install of Linux Mint Cinnamon 20

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Before you post please read how to get help. Topics in this forum are automatically closed 6 months after creation.

Lenovo S21e lost wifi upon install of Linux Mint Cinnamon 20

Post by ZV43 » Fri Jul 10, 2020 8:28 pm

I had wifi with Windows 8.1, & I *think* I had it running linux from the flash drive, but I’m not certain. But with real install (erasing Windows), wifi went away.

Typing in random codes (linux is a foreign language) from other people’s threads yielded some information, I think: Soft blocked yes, hard blocked no. Iwconfig says: lo no wireless extensions. Ok, now what?

I’m typing this on my android phone, if y’all need my code outputs, do I copy them by hand, letter by letter, or what? How do people show you their codes when they have no wifi?

Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.

Re: Lenovo S21e lost wifi upon install of Linux Mint Cinnamon 20

Post by sleeper12 » Sat Jul 11, 2020 12:39 am

Re: Lenovo S21e lost wifi upon install of Linux Mint Cinnamon 20

Post by ZV43 » Sun Jul 12, 2020 1:43 am

I can’t just copy & paste from the laptop to the phone. Laptop has no internet. I have to type stuff in letter by letter.

inxi -Fxz System: Kernel: 5.4.0-26-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: Cinnamon 4.6.6 Distro: Linux Mint 20 Ulyana base: Ubuntu 20.04 focal Machine: Type: Laptop System: LENOVO product: 80M4 v: Lenovo s21e-20 serial: Mobo: LENOVO model: Lenovo s21e-20 v: SDK0J33995 WIN serial: UEFI: LENOVO v: C4CN14WW(V1.04) date: 04/07/2015 Battery: ID-1: BAT1 charge: 21.1 Wh condition: 21.1/23 0 Wh (92%) model: Simplo L14M4P71 status: Full CPU: Topology: Dual Core model: Intel Celeron N2840 bits: 64 type: MCP arch: Silvermont rev: 8 L2 cache: 1024 KiB flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 8663 Speed: 500 MHz min/max: 500/2582 MHz Core speeds (MHz): 1: 500 2: 500 Graphics: Device-1: Intel Atom Processor z36xxx/z37xxx Series Graphics & Display vendor: Lenovo driver: i915 v: kernel bus ID: 00:02.0 Display: x11 server: X.Org 1.20.8 driver: modesetting unloaded: fbdev,vesa resolution: 1366x768~60Hz OpenGL: renderer: Mesa DRI Intel HD Graphics (BYT) v: 4.2 Mesa 20.0.4 direct render: Yes Audio: Device-1: Intel Atom Processor z36xxx/z37xxx Series High Definition Audio vendor: Lenovo driver: snd_hda_intel v: kernel bus ID: 00:1b.0 Sound Server: ALSA v: k5.4.0-26-generic Network: Device-1: Broadcom and Subsidiaries BCM43142 802.11b/g/n vendor: Lenovo driver: N/A port: 1000 bus ID: 01:00.0 Drives: Local Storage: total: 29.12 GiB used: 12.01GiB (41.2%) ID-1: /dev/mmcblk0 model: BGND3R size: 29.12 GiB Partition: ID-1: / size: 27.08 GiB used: 6.00 GiB (22.2%) fs: ext4 dev: /dev/dm-0 ID-2: swap-1 size: 976.0 MiB used: 0 KiB (0.0%) fs: swap dev: /dev/dm-1 Sensors: System Tempetatures: cpu: 46.0 C mobo: N/A Fan Speeds (RPM): N/A Info: Processes: 183 Uptime: 2m Memory: 1.83 GiB used: 643.6 MiB (34.4%) Init: systemd runlevel: 5 Compilers: gcc: 9.3.0 Shell: bash v: 5.0.16 inxi: 3.0.38 rfkill list 0: hci0: Bluetooth Soft blocked: yes Hard blocked: no mokutil --sb-state SecureBoot disabled 

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