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