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89 lines
2.7 KiB
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89 lines
2.7 KiB
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Troubleshooting
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###############
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There are many different issues that can arise when setting up Looking
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Glass. Below is a list of known issues with potential solutions:
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.. _when_launching_looking_glass_the_desktop_doesnt_appear:
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When Launching Looking Glass the Desktop Doesn't Appear
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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- **Using an AMD GPU?**
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- After the end of the Radeon HD Series, new AMD GPUs go to sleep when no
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display is connected. For this reason, one of two conditions must be met.
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#. The GPU needs to remain plugged into a monitor (this is good for
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testing & troubleshooting).
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#. The GPU needs to have a dummy plug installed which presents itself as a
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monitor.
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.. _the_clipboard_is_not_working:
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The Clipboard is not Working
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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- **Is clipboard synchronization enabled?**
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- Before you can copy or paste content between the Guest and Host,
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:ref:`clipboard
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synchronization <how_to_enable_clipboard_synchronization_via_spice>`
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must be enabled.
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- **Did you install the Spice Guest Tools?**
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- The `SPICE Guest Tools
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driver <https://www.spice-space.org/download.html>`_ must be installed
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on the host OS to synchronize the clipboard.
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The download is labeled "spice-guest-tools".
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.. warning::
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Do **NOT** install the QEMU Guest Tools driver.
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These are not the same.
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- **Is it installed twice?**
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- The Spice VDAgent is available in both Spice Guest Tools, and
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standalone as a separate installer. Check your installed programs
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and uninstall the VDAgent if it's installed separately.
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.. _followed_installation_instructions_but_looking_glass_still_doesnt_launch:
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Followed Installation Instructions but Looking Glass Still Doesn't Launch
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Depending on your distribution, various circumstances can cause Looking
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Glass to still not run. Below is a list of known issues that can prevent
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Looking Glass from running properly.
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AppArmor
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^^^^^^^^
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AppArmor is a security application that can prevent Looking Glass from
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running. How to add security exceptions may vary on your distribution:
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Start by opening the file ``/etc/apparmor.d/abstractions/libvirt-qemu``.
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Now locate and edit the following lines to represent how they appear in
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the example:
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.. code:: text
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# for usb access
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/dev/bus/usb/** rw,
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/etc/udev/udev.conf r,
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/sys/bus/ r,
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/sys/class/ r,
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/run/udev/data/* rw,
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/dev/input/* rw,
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# Looking Glass
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/dev/shm/looking-glass rw,
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Save, exit, and restart AppArmor:
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.. code:: text
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sudo systemctl restart apparmor
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