mirror of
https://github.com/QubesOS/qubes-doc.git
synced 2024-12-27 08:19:24 -05:00
53 lines
2.5 KiB
Markdown
53 lines
2.5 KiB
Markdown
---
|
|
lang: en
|
|
layout: doc
|
|
permalink: /doc/hardware-troubleshooting/
|
|
redirect_from:
|
|
- /doc/newer-hardware-troubleshooting/
|
|
ref: 97
|
|
title: Hardware troubleshooting
|
|
---
|
|
|
|
## Audio doesn't work / Troubleshooting newer hardware
|
|
|
|
By default, the kernel that is installed in dom0 comes from the `kernel` package, which is an older Linux LTS kernel.
|
|
For most cases this works fine since the Linux kernel developers backport fixes to this kernel, but for some newer hardware, you may run into issues.
|
|
For example, the audio might not work if the sound card is too new for the LTS kernel.
|
|
To fix this, you can try the `kernel-latest` package -- though be aware that it's less tested!
|
|
(See [here](/doc/how-to-install-software-in-dom0/#kernel-upgrade) for more information about upgrading kernels in dom0).
|
|
In dom0:
|
|
|
|
~~~
|
|
sudo qubes-dom0-update kernel-latest
|
|
~~~
|
|
|
|
Reboot when it's done installing.
|
|
You can double-check that the boot used the newer kernel with `uname -r`, which prints the version of the currently-running kernel.
|
|
Compare this with the output of `rpm -q kernel`.
|
|
If the start of `uname -r` matches one of the versions printed by `rpm`, then you're still using the Linux LTS kernel, and you'll probably need to manually fix your boot settings.
|
|
If `uname -r` reports a higher version number, then you've successfully booted with the kernel shipped by `kernel-latest`.
|
|
|
|
## "Unsupported Hardware Detected" error
|
|
|
|
See [Installation Troubleshooting](/doc/installation-troubleshooting/#unsupported-hardware-detected-error).
|
|
|
|
## Keyboard layout settings not behaving correctly
|
|
|
|
The best approach is to choose the right keyboard layout during the installation process.
|
|
But if you want to change things afterwards, you can try this workaround.
|
|
|
|
Assuming XFCE desktop: in `Q` → `System Tools` → `Keyboard` → `Layout`, leave the checkbox "`Use system defaults`" checked. Do not customize the keyboard layout here.
|
|
|
|
Set the system-wide layout and options for `xorg` with the `localectl` command in `dom0`. You can use `localectl --help` as a starting point.
|
|
|
|
Example: `localectl set-x11-keymap us dell ,qwerty compose:caps`.
|
|
|
|
This generates the appropriate configuration in `/etc/X11/xorg.conf.d/00-keyboard.conf`.
|
|
This file is auto-generated.
|
|
Do not edit it by hand, unless you know what you are doing.
|
|
|
|
Restarting `xorg` is required.
|
|
The most straightforward way is to reboot the system.
|
|
|
|
More information in [this discussion](https://groups.google.com/d/topic/qubes-devel/d8ZQ_62asKI/discussion) and [this GitHub issue](https://github.com/QubesOS/qubes-issues/issues/1396).
|