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@ -129,6 +129,7 @@ Core documentation for Qubes users.
* [PCI Troubleshooting](/doc/pci-troubleshooting/) * [PCI Troubleshooting](/doc/pci-troubleshooting/)
* [USB Troubleshooting](/doc/usb-troubleshooting/) * [USB Troubleshooting](/doc/usb-troubleshooting/)
* [GUI Troubleshooting](/doc/gui-troubleshooting/) * [GUI Troubleshooting](/doc/gui-troubleshooting/)
* [Media Troubleshooting](/doc/media-troubleshooting/)
### Reference Pages ### Reference Pages
@ -271,6 +272,17 @@ For more, please see [Qubes Community Documentation](https://github.com/Qubes-Co
* [Dark Theme in Dom0 and DomU](/doc/dark-theme/) * [Dark Theme in Dom0 and DomU](/doc/dark-theme/)
* [Safely Removing TemplateVM Packages (Example: Thunderbird)](/doc/removing-templatevm-packages/) * [Safely Removing TemplateVM Packages (Example: Thunderbird)](/doc/removing-templatevm-packages/)
### Troubleshooting
* [Installing on system with new AMD GPU (missing firmware problem)](https://groups.google.com/group/qubes-devel/browse_thread/thread/e27a57b0eda62f76)
* [How to install an Nvidia driver in dom0](/doc/install-nvidia-driver/)
* [Nvidia troubleshooting guide](/doc/nvidia-troubleshooting/)
* [Lenovo ThinkPad Troubleshooting](/doc/thinkpad-troubleshooting/)
* [Apple MacBook Troubleshooting](/doc/macbook-troubleshooting/)
* [Getting Sony Vaio Z laptop to work with Qubes](/doc/sony-vaio-tinkering/)
* [Intel Integrated Graphics Troubleshooting](/doc/intel-igfx-troubleshooting/)
### Troubleshooting ### Troubleshooting
* [Installing on system with new AMD GPU (missing firmware problem)](https://groups.google.com/group/qubes-devel/browse_thread/thread/e27a57b0eda62f76) * [Installing on system with new AMD GPU (missing firmware problem)](https://groups.google.com/group/qubes-devel/browse_thread/thread/e27a57b0eda62f76)

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---
layout: doc
title: Media Troubleshooting
permalink: /doc/media-troubleshooting/
---
# Video and Audio Troubleshooting #
## Can't play media videos in a VM due to missing codecs
If you’re having trouble playing a video file in a qube, you’re probably missing the required codecs.
The easiest way to resolve this is to install VLC Media Player and use that to play your video files.
You can do this in multiple different TemplateVM distros by following the instructions [here](/faq/#how-do-i-play-video-files).
## Video lagging
Playing videos may cause lags since software decoding uses a lot of CPU.
Depending on your video player, there are some settings that may smoothen video plays:
* If using VLC media player, go to Tools--> Preferences --> Video --> Output.
By default, the Output is set to "Automatic".
Go through the list and try out other output options to see if any makes videos run smoother.
* If using mpv media player, you may be able to improve performance by entering `mpv --profile=sw-fast --vo=x11` in a terminal.
* For video lags when playing videos from a browser, disable hardware acceleration in the browser. If the problem arises when watching streams, it may be smoother to use `streamlink` to view streams in mpv instead of using the browser.