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wiki/linux/gpu_screen_recorder.md
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wiki/linux/gpu_screen_recorder.md
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# GPU Screen Recorder
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[GPU Screen Recorder](https://git.dec05eba.com/gpu-screen-recorder/about/) is a
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utility similar to [Nvidia ShadowPlay](/wiki/nvidia.md#screen-capture).
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## Setup
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GPU Screen Recorder can be installed on some distributions by installing the
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`gpu-screen-recorder-git` package.
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An installation via [git](https://git.dec05eba.com/gpu-screen-recorder/about/)
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is always possible.
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## Usage
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The program features normal recording of the screen and recording in the so
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called replay mode.
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To start a simple screen recording run the following command.
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```sh
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gpu-screen-recorder -w $(xdotool selectwindow) -c mp4 -f 60 -a "$(pactl get-default-sink).monitor" -o test_video.mp4`
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```
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The window to record has to be selected first by clicking on it.
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The default audio device is already selected.
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To stop the recording `Ctrl-C` the previous command or use the command below.
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```sh
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killall -SIGINT gpu-screen-recorder
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```
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For the replay mode the recording can be started the following way.
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```sh
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gpu-screen-recorder -w $(xdotool selectwindow) -c mp4 -f 60 -a "$(pactl get-default-sink).monitor" -r 30 -o .`
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```
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In this case a replay will have the maximum length of 30 seconds (specified by
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`-r 30`).
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It is also important to assign the `-o` flag with a directory and not a file
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anymore.
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The last 30 seconds (replay) can then be sending a SIGUSR1 signal.
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```sh
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killall -SIGUSR1 gpu-screen-recorder
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```
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# NVidia
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# Nvidia
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NVidia is a vendor for graphics cards.
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[Nvidia](/wiki/nvidia.md) is a vendor for graphics cards.
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## Setup
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For NVidia GPUs to work install the `nvidia` and the `nvidia-utils` package.
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For Nvidia GPUs to work install the `nvidia` and the `nvidia-utils` package.
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If you want to easily configure the monitors as described in a later section of
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this file you can also install `nvidia-settings`.
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wiki/nvidia.md
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# Nvidia
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[Nvidia](https://www.nvidia.com) is a vendor for graphics cards.
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These graphics cards are mainly supported for Windows systems but can be used on
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Linux based systems with some special caveats explained in the
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[Linux Nvidia entry](/wiki/linux/nvidia.md).
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### Screen Capture
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Nvidias program with several tools - called GeForce Experience - features
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software for hardware-accalerated [screen recordings](/wiki/screen_capture.md).
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This recording software is called Nvidia ShadowPlay.
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Nvidia Experience is currently only available on Windows systems.
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wiki/screen_capture.md
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# Screen Capture
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Screen capture describes the process of recording a computer screen.
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## Screen Capture options
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Windows systems using an Nvidia graphics card can make use of ShadowPlay a
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screen recording software integrated in Nvidias suite GeForce Experience.
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Linux systems can use the
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[GPU Screen Recorder](/wiki/linux/gpu_screen_recorder.md) to make
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gpu-accelerated screen recordings.
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It features similar features to ShadowPlay.
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