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arch-wiki-md-repo

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All arch-wiki articles in markdown format, updated every two days.

github.com/greg-js/arch-wiki-md-repo

greg-js/arch-wiki-md-repo

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| **Device** | **Status** | | [Intel graphics](/index.php/Intel_graphics "Intel graphics") | Yes | | [Wireless](/index.php/Wireless "Wireless") | Yes | | [ALSA](/index.php/ALSA "ALSA") | no beep | | [TrackPoint](/index.php/TrackPoint "TrackPoint") | Yes | | [Touchpad](/index.php/Touchpad "Touchpad") | Yes | | [Webcam](/index.php/Webcam "Webcam") | Yes | | Fingerprint Sensor | WIP | | [Mobile Broadband](/index.php/ThinkPad_mobile_internet "ThinkPad mobile internet") | Yes | | [Bluetooth](/index.php/Bluetooth "Bluetooth") | Yes | | Smartcard Reader | Yes | This article covers the installation and configuration of Arch Linux on a Lenovo T460s laptop. For a general overview of laptop-related articles and recommendations, see [Laptop](/index.php/Laptop "Laptop"). ## Contents * [1 Hardware](#Hardware) * [2 Configuration](#Configuration) * [2.1 flip_done timed out freezes](#flip_done_timed_out_freezes) * [2.2 Fingerprint Sensor](#Fingerprint_Sensor) * [2.3 ALSA Beep](#ALSA_Beep) * [2.4 Function keys](#Function_keys) * [2.5 Video Issues](#Video_Issues) * [2.6 Smartcard Reader](#Smartcard_Reader) * [3 See also](#See_also) ## Hardware `lspci` returns something like: ``` 00:00.0 Host bridge: Intel Corporation Skylake Host Bridge/DRAM Registers (rev 08) 00:02.0 VGA compatible controller: Intel Corporation HD Graphics 520 (rev 07) 00:08.0 System peripheral: Intel Corporation Skylake Gaussian Mixture Model 00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21) 00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21) 00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21) 00:16.3 Serial controller: Intel Corporation Device 9d3d (rev 21) 00:1c.0 PCI bridge: Intel Corporation Device 9d10 (rev f1) 00:1c.2 PCI bridge: Intel Corporation Device 9d12 (rev f1) 00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1) 00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21) 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21) 00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21) 00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21) 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection I219-LM (rev 21) 02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI Express Card Reader (rev 01) 04:00.0 Network controller: Intel Corporation Wireless 8260 (rev 3a) 05:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller (rev 01) ``` `lsusb` returns something like: ``` Bus 002 Device 002: ID 17ef:1012 Lenovo Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 008: ID 138a:0090 Validity Sensors, Inc. Bus 001 Device 007: ID 04f2:b52c Chicony Electronics Co., Ltd Bus 001 Device 005: ID 8087:0a2b Intel Corp. Bus 001 Device 003: ID 058f:9540 Alcor Micro Corp. AU9540 Smartcard Reader Bus 001 Device 006: ID 192f:0416 Avago Technologies, Pte. ADNS-5700 Optical Mouse Controller (3-button) Bus 001 Device 004: ID 17ef:1011 Lenovo Bus 001 Device 002: ID 17ef:1012 Lenovo Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub ``` ## Configuration ### flip_done timed out freezes See [this thread](https://bbs.archlinux.org/viewtopic.php?pid=1689914#p1689914) for some discussion. You can either move back to a <4.8 kernel by using linux-lts, or add the following parameter to your kernel command line, which seems to help (it disables S-Video, but there is no such connector on a T460s): ``` video=SVIDEO-1:d ``` ### Fingerprint Sensor The fingerprint reader included with this model `138a:0090 Validity Sensors, Inc` currently lacks a linux driver. [libfprint bugreport](https://bugs.freedesktop.org/show_bug.cgi?id=94536). Synaptics (which has acquired 'Validity Sensors') has unofficially said that they cannot disclose the protocol, but may possibly release a binary driver. Open source Linux driver is being developed by reverse engineering the Windows driver [[1]](https://github.com/nmikhailov/Validity90). Based on this work an experimental [fprint](/index.php/Fprint "Fprint") driver was developed: [libfprint-vfs0090-git](https://aur.archlinux.org/packages/libfprint-vfs0090-git/) [[2]](https://github.com/3v1n0/libfprint). **Note:** It only works if the device has been initialized with a Windows VirtualBox (sharing USB) guest or with a Windows installation in bare metal. ### ALSA Beep There is no "beep" input to the snd_hda_intel device, so beeps generated by terminal emulators etc. are not played. As a workaround, PulseAudio can be configured to pick up X11 bell events, see [PulseAudio#X11 Bell Events](/index.php/PulseAudio#X11_Bell_Events "PulseAudio"). ### Function keys Fn+Esc to enable FnLk which will make your function keys work. ### Video Issues With newer kernels (>= 4.5), there seems to be video flickering, i.e. the screen occasionally goes black for what seems to be a single frame. See bug reports: [[3]](https://bugs.freedesktop.org/show_bug.cgi?id=95010) [[4]](https://bugs.freedesktop.org/show_bug.cgi?id=91393). This can be worked around by using the `i915.enable_rc6=0` [kernel parameter](/index.php/Kernel_parameter "Kernel parameter") [[5]](https://bugs.freedesktop.org/show_bug.cgi?id=95010) (cf. [Intel graphics#Skylake support](/index.php/Intel_graphics#Skylake_support "Intel graphics")) ### Smartcard Reader ``` Bus 001 Device 003: ID 058f:9540 Alcor Micro Corp. AU9540 Smartcard Reader ``` [Install](/index.php/Install "Install") the [ccid](https://www.archlinux.org/packages/?name=ccid) and [pcsc-tools](https://www.archlinux.org/packages/?name=pcsc-tools) packages, and [enable](/index.php/Enable "Enable") the `pcscd` service. The reader should be visible when running `pcsc_scan`: ``` pcsc_scan PC/SC device scanner V 1.4.27 (c) 2001-2011, Ludovic Rousseau <ludovic.rousseau@free.fr> Compiled with PC/SC lite version: 1.8.16 Using reader plug'n play mechanism Scanning present readers... 0: Alcor Micro AU9560 00 00 Wed Sep 7 16:48:42 2016 Reader 0: Alcor Micro AU9560 00 00 Card state: Card removed, ``` ## See also * [Lenovo Support Page](http://support.lenovo.com/us/en/products/Laptops-and-netbooks/ThinkPad-T-Series-laptops/ThinkPad-T460s?beta=false) * [Dual boot install with bootctl](https://www.youtube.com/watch?v=fnYZAr-BaK0&list=PLiKgVPlhUNuxgKwoVH4MMUy5MLqjAE2ux&index=3)