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Lenovo V145-15AST
Author(s)
Han-Kwang Nienhuys
Introduction
A 15 inch laptop. Installed Ubuntu 18.10; mostly works, but no Wifi out-of-the-box. The laptop comes in variants with different CPUs (all AMD), SSD capacity, screens, and so on. The V130 model (14 inch) comes with Intel CPUs and likely different other hardware as well.
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Specifications
| Name | Lenovo V145-15AST (part no. 81MT000VMH) |
| Processor | AMD A9-9545 |
| Screen | |
| RAM | 8 GB, DDR4 |
| SSD | 256 GB |
| Optical Drive | DVD-RW |
| Graphics | AMD integrated |
| Network - wired | yes |
| Network - wireless | yes when you install rtl8821ce |
| Bluetooth | yes |
Linux Compatibility
| Device | Compatibility | Comments |
|---|---|---|
| Processor | Yes | |
| Screen | yes | |
| SSD | Yes | |
| Graphics Chip | ? | not tested. |
| HDMI Port | yes | Tested on external monitor |
| Sound | Yes | tested via headphone jack plug |
| Built-in Microphone | ? | . |
| Headphone Jack | Yes | |
| Microphone Jack | ? | |
| Ethernet | Yes | |
| Wireless | No/Yes | Not supported by Ubuntu 18.10 but works with Arch linux when you install rtl8821ce |
| Bluetooth | yes | |
| USB | Yes | |
| Card Reader | ? | |
| Webcam | ? | |
| Touch Pad | yes | |
| Suspend/Resume | Yes | Did not test hibernation |
Notes
Entering system/boot menu
Keep pressing F1 (system settings) or F12 (select boot device) during startup while the screen is still black. By the time the colorful Lenovo picture appears, you're already in the Windows-10 boot process.
Installation
I did not attempt to set this up as dual-boot. However, before wiping the Windows OS, I did install a BIOS/UEFI update via Windows, which you can get from the Lenovo website.
I installed Ubuntu 18.10 with full disk encryption and secure boot. This went fairly smoothly compared to a few years ago, when extensive fiddling with UEFI settings was necessary. You'll be asked to define a one-time password to authorize the changes in boot loader; after reboot, the Lenovo firmware will ask for this password.
The default swap space was rather small, not enough for hibernation. I did manage to resize the partitions after installation (this is rather involved, especially with full-disk encryption), but Ubuntu didn't provide access to a hibernation function even with a 12 GB swap space.
Wifi
Unfortunately, no Wifi in Ubuntu 18.10. I did not spend a lot of effort to get this to work.
In Arch linux the wifi works with following commands:
git clone https://aur.archlinux.org/rtl8821ce-dkms-git.git
cd rtl8821ce-dkms-git
makepkg -sic
WIFI works after reboot.
