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147 lines
3.7 KiB
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147 lines
3.7 KiB
Markdown
---
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layout: post
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title: "Linux on Dell Precision 7520"
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date: 2017-11-29 12:00:00 +0100
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comments: true
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categories:
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---
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Three years after the [M4800]({% post_url 2014-11-22-debian-jessie-on-dell-precision-m4800 %}),
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it's time to upgrade again. Let's start with `debian-9.2.1-amd64-netinst.iso`.
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Booting it up
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-------------
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My new laptop came with an OEM Windows 10 preinstalled. I wanted to keep it just
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in case, but it turns out that:
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* since I want BitLocker, SecureBoot needs to be enabled
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* Ubuntu supports SecureBoot, but Debian does not
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* since I want LVM+encryption, I need to use Debian
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So I'm ditching the pre-installed Windows (I'll make a VirtualBox VM
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later on if I really need it).
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Installation
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------------
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System install is pretty uneventful, except for the fact that the trackpad
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is apparently not working within the installer. I was able to install
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on LVM with encryption as desired. I was happy to find MATE as one of the
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desktop options.
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Post-install customization
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--------------------------
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X11
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===
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Keyboard and trackpad setup appear to work just fine out of the
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box (including for GDM).
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The default driver appears to work just fine with the embedded LCD
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display, but is unable to handle my two external DP monitors
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(see below).
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Nvidia driver
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=============
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I am using this laptop on a docking station with two DisplayPort
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monitors. This works only if the builtin Intel GPU is disabled,
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and the add-on Nvidia GPU only is enabled.
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Using the nvidia (non-free) driver
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----------------------------------
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To install the nVidia driver:
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* make sure installed kernel headers (linux-headers) match kernel (linux-image),
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otherwise DKMS won't build.
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* install nvidia-driver (note: this will build a kernel module, so requires
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a working compiler)
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* install nvidia-xconfig
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* run `nvidia-xconfig --query-gpu-info` by hand and make note of PCI BusID
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* run `nvidia-xconfig --busid=PCI:x:x:x` to generate xorg.conf
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BIOS setup
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----------
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To disable the built-in Intel GPU:
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* Video -> Switchable graphics -> uncheck Enable Switchable Graphics
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(I have also checked Graphics Special Mode, not sure whether this is
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needed).
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Desktop environment
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===================
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* Set focus-follows-mouse
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* Set keyboard shortcut for lock screen to Win+L
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* Set MATE terminal to white-on-black
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[Disable GNOME Keyring SSH agent](http://william.shallum.net/random-notes/disabling-gnome-keyring-daemon-ssh-agent-on-mate-desktop):
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```
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$ gsettings get org.mate.session gnome-compat-startup
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['smproxy', 'keyring']
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$ gsettings set org.mate.session gnome-compat-startup "['smproxy']"
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$ gsettings get org.mate.session gnome-compat-startup
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['smproxy']
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$ mate-session-properties
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# uncheck SSH Key Agent and maybe others.
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# This will create a copy of /etc/xdg/autostart/gnome-keyring-ssh.desktop
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# in ~/.config/autostart, with appropriate settings to turn it off.
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```
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Sudo configuration
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==================
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Add myself to group `sudo`.
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APT sources
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===========
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In `/etc/apt/sources.list`: add contrib and non-free.
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Wifi drivers
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============
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The Intel wireless drivers require non-free binary components,
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see https://wiki.debian.org/fr/iwlwifi
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Packages
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========
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firmware-iwlwifo
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vim
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rsync
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net-tools
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pcscd
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apt-transport-https
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openvpn
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binutils
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ltrace
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strace
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scdaemon
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Hipchat
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=======
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Hipchat is linked against Qt libraries that assume OpenSSL 1.0,
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but Debian provides 1.1.
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Work around:
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```
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# apt-get install libssl1.0.2
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# ln -s /usr/lib/x86_64-linux-gnu/libssl.so.1.0.2 /opt/HipChat4/lib/libssl.so
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# ln -s /usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.2 /opt/HipChat4/lib/libcrypto.so
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```
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(Note: the Atlassian web site gives
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[incomplete instructions](https://confluence.atlassian.com/hipchatkb/hipchat4-debian-client-doesn-t-connect-859526103.html)
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-- they do not mention libcrypto).
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