# Enable display
Before you begin, set up your infrastructure as described in the [Qualcomm Linux Build Guide](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-254/).
## Set up HDMI display
See the appropriate chip product for device-specific information.
>
>
> Tab QCS6490
> Tab IQ-9075
> Tab IQ-8275
>
> - *class* tabincludedirective
>
> - >
> >
> >
> >
> >
> >
> > **Figure: HDMI setup workflow**
>
>
>
> The display subsystem provides the Weston and Wayland compositors, along with
> `libdrm` APIs, which interact with the DPU driver to render the Wayland
> client applications. The sample test applications are used to evaluate
> the basic rendering of Wayland applications and to connect to the HDMI
> display.
>
>
> ### Prerequisites
>
>
> Ensure that you configure the following settings on the device:
>
>
> 1. Set Switch 4 of DIP\_SW\_0 to OFF.
> 2. Connect the device to the HDMI display.
>
>
>
> 
>
>
> **Figure: DIP switch selection for HDMI**
>
>
> ### Verify HDMI/eDP display setup
>
>
> To verify the HDMI/eDP display setup, power on the device and connect to the HDMI cable or to the mini DisplayPort, as applicable. Weston launches automatically during boot. After running the commands, you should see the following Weston flower pattern.
>
> 
>
> **Figure: Weston flower pattern**
>
> Note
>
> - If you are experiencing a no-display screen issue on HDMI, see [Debug HDMI display](https://docs.qualcomm.com/doc/80-70022-18/topic/debug.html#troubleshoot-hdmi-display).
> - If you connect the HDMI cable after powering on the device, see [Troubleshoot display issue when HDMI/eDP cable is connected after boot](https://docs.qualcomm.com/doc/80-70022-18/topic/debug.html#connect-hdmi-cable-bootup).
>
>
> After you have set up the HDMI display, run the following display test applications to verify the display functionality.
>
>
> ### Run the Weston simple EGL client application
>
>
> Weston simple EGL is a sample test application that you can use to verify the composition and rendering of frames on your HDMI display. To run the application, run the following commands:
>
>
> Note
>
>
> You must enable SSH to access your host device. For instructions, see [Sign in using SSH](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-254/how_to.html#use-ssh).
>
>
> mount -o remount,rw /
> Copy to clipboard
>
>
> su
> Copy to clipboard
>
>
> . /etc/profile
> Copy to clipboard
>
>
> export XDG_RUNTIME_DIR=/dev/socket/weston && mkdir -p $XDG_RUNTIME_DIR
> Copy to clipboard
>
>
> cd /usr/bin
> Copy to clipboard
>
>
> export WAYLAND_DISPLAY=wayland-1 && weston-simple-egl
> Copy to clipboard
>
>
> The following figure shows the Weston simple EGL client application running on the display monitor.
>
> 
>
> **Figure: Weston simple EGL client application**
>
> Note
>
>
> To kill the application, select **CTRL + C**.
>
>
> ### Run DRM modetest
>
>
> To verify the display driver topology, run the DRM modetest. This test ensures that the DSI and the DPU paths are working effectively.
>
>
> To run the DRM modetest application, first you need to generate the DRM modetest binary.
>
>
> **Generate the DRM modetest binary**
>
>
> By default, the DRM modetest binary isn’t included in the display subsystem. To generate the DRM modetest binary file, do the following:
>
>
> Note
>
>
> You must enable SSH to access your host device. For instructions, see [Sign in using SSH](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-254/how_to.html#use-ssh).
>
> 1. Ensure that you have the latest QLI software. If you don’t, see [Release Notes](https://docs.qualcomm.com/bundle/publicresource/topics/RNO-251013063244/ReleaseNote.html) and [Qualcomm Linux Build Guide](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-254/introduction.html).
> 2. To generate the binary, go to the workspace <workspace> and run the following commands:
>
>
>
> >
> >
> > export SHELL=/bin/bash
> > Copy to clipboard
> >
> >
> > MACHINE=qcs6490-rb3gen2-core-kit DISTRO=qcom-wayland source setup-environment
> > Copy to clipboard
> >
> >
> > bitbake -fc install libdrm
> > Copy to clipboard
> >
> >
> > The system generates the binary at `/build-qcom-wayland/tmp-glibc/work/armv8-2a-qcom-linux/libdrm/2.4.120/image/usr/bin/modetest` directory.
> 3. To push the modetest binary file to the device, run the following commands:
>
>
>
> >
> >
> > mount -o remount,rw /usr
> > Copy to clipboard
> >
> >
> > scp /build-qcom-wayland/tmp-glibc/work/armv8-2a-qcom-linux/libdrm/2.4.120/image/usr/bin/modetest root@:/usr/bin
> > Copy to clipboard
> >
> >
> > Note
> >
> >
> > If prompted for a password, enter `oelinux123`.
>
>
>
> **Run DRM modetest application**
>
>
> To run the drm modetest application, do the following:
>
>
> Note
>
>
> You must enable SSH to access your host device. For instructions, see [Sign in using SSH](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-254/how_to.html#use-ssh).
>
> 1. To kill the Weston client application, run the following commands in the device shell:
>
>
>
> >
> >
> > mount -o remount,rw /
> > Copy to clipboard
> >
> >
> > ps -A | grep weston
> > Copy to clipboard
> >
> >
> > **Sample output:**
> >
> >
> > 824 ? 00:00:12 weston
> > 1090 ? 00:00:00 weston-keyboard
> > 1092 ? 00:00:01 weston-desktop-
> > Copy to clipboard
> >
> >
> > Use the Weston process ID from the sample Weston process list to kill the Weston processes.
> 2. To kill all Weston processes, run the following command:
>
>
>
> >
> >
> > killall weston
> > Copy to clipboard
> 3. To change permissions of the modetest application, run the following command:
>
>
>
> >
> >
> > chmod 0777 /usr/bin/modetest
> > Copy to clipboard
> 4. To view the connector IDs and modes, run the following command:
>
>
>
> >
> >
> > /usr/bin/modetest -c msm_drm > /opt/drm_mode.txt
> > Copy to clipboard
> 5. To verify DRM modes and connector information, pull the `/opt/drm_mode.txt` file locally on your host computer. Use the Secure Copy Protocol (SCP) to pull the `drm_mode.txt` file from the device to your host computer. For example,
>
>
>
> >
> >
> > scp -r root@:/opt/drm_mode.txt
> > Copy to clipboard
> >
> >
> > Note
> >
> >
> > When prompted for a password, enter `oelinux123`.
> >
> >
> > The output as shown in the following figure is from the
> > `/opt/drm_mode.txt` file.
> >
> > 
> >
> > **Figure: Command prompt output**
> 6. To fetch the connector ID and mode name, use the relevant values from the `/opt/drm_mode.txt` file:
>
>
>
> >
> >
> > modetest -c msm_drm -s :
> > Copy to clipboard
> 7. To start the modetest application, run the following sample command using the connector ID and the mode name retrieved from the `/opt/drm_mode.txt` file. For example:
>
>
>
> >
> >
> > /usr/bin/modetest -c msm_drm -s 32:1920x1080-60
> > Copy to clipboard
> >
> >
> > Note
> >
> >
> > Start the DRM test application and ignore the warning log: `Failed to set gamma: Function not implemented`.
> >
> > 
> >
> > **Figure: DRM modetest sample application output screen**
> 8. To kill the modetest application, select **CTRL + C**.
>
>
>
> >
> >
> > Note
> >
> >
> > Ensure that you [Relaunch Weston](https://docs.qualcomm.com/doc/80-70022-18/topic/debug.html#relaunch-weston).
>
>
> ### Run GStreamer video playback applications
>
>
> To run the GStreamer sample applications, you must ensure that the HDMI setup is verified. For information on prerequisites, see [Sample applications](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-50/example-applications.html).
>
>
> To run the sample video test cases using `gst-launch-1-0`, see [With video playback as an example](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-50/video-playback-use-cases.html).
>
>
> Note
>
>
> Before running the test cases, ensure that you meet the [prerequisites](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-50/gstreamer-application-use-cases.html).
>
> - *class* tabincludedirective
>
> - Not applicable
>
> - *class* tabincludedirective
>
> - Not applicable.
## Set up DisplayPort
See the appropriate chip product for information about your device.
>
>
> Tab QCS6490
> Tab IQ-9075
> Tab IQ-8275
>
> - *class* tabincludedirective
>
> - Not applicable
>
> - *class* tabincludedirective
>
> - >
> >
> >
> >
> >
> >
> > **Figure: DisplayPort setup workflow**
> >
> > The display subsystem provides the Weston and Wayland compositors, along with
> > `libdrm`, which interact with the DPU driver to render the Wayland
> > client applications. The sample test applications are used to evaluate
> > the basic rendering of the Wayland applications and to connect to the
> > DisplayPort.
>
>
>
> ### Prerequisites
>
>
> Ensure that you connect the DisplayPort cable to the eDP0 connector as shown in the figure.
>
>
>
> >
> >
> > 
> >
> > **Figure: DisplayPort setup**
>
>
> ### Verify the DisplayPort setup
>
>
>
> >
> >
> > To verify the DisplayPort setup, power on the device. Weston launches automatically during boot. After running the commands, you should see the following Weston flower pattern.
> >
> > 
> >
> > **Figure: Weston flower pattern**
> >
> > Note
> >
> >
> > If you connect the eDP cable after powering on the device, see [Troubleshoot display issue when HDMI/eDP cable is connected after boot](https://docs.qualcomm.com/doc/80-70022-18/topic/debug.html#connect-hdmi-cable-bootup).
> >
> >
> > After you have set up the DisplayPort, run the following display test applications to verify the display functionality.
>
>
> ### Run the Weston simple EGL client application
>
>
>
> >
> >
> > Weston simple EGL is a sample test application that you can use to verify the composition and rendering of frames on your DisplayPort. To run the application, run the following commands:
> >
> >
> > Note
> >
> >
> > You must enable SSH to access your host device. For instructions, see [Sign in using SSH](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-254/how_to.html#use-ssh).
> >
> >
> > mount -o remount,rw /
> > Copy to clipboard
> >
> >
> > su
> > Copy to clipboard
> >
> >
> > . /etc/profile
> > Copy to clipboard
> >
> >
> > export XDG_RUNTIME_DIR=/dev/socket/weston && mkdir -p $XDG_RUNTIME_DIR
> > Copy to clipboard
> >
> >
> > cd /usr/bin
> > Copy to clipboard
> >
> >
> > export WAYLAND_DISPLAY=wayland-1 && weston-simple-egl
> > Copy to clipboard
> >
> >
> > The following figure shows the Weston simple EGL client application running on the display monitor.
> >
> > 
> >
> > **Figure: Weston simple EGL client application**
> >
> > Note
> >
> >
> > To kill the application, select **CTRL + C**.
>
>
> ### Run DRM modetest
>
>
>
> >
> >
> > To verify the display driver topology, run the DRM modetest. This test ensures that the DSI and the DPU paths are working effectively.
> >
> >
> > **Generate the DRM modetest binary**
> >
> >
> > Note
> >
> >
> > You must enable SSH to access your host device. For instructions, see [Sign in using SSH](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-254/how_to.html#use-ssh).
> >
> >
> > By default, the DRM modetest binary isn’t included in the display subsystem. To generate the DRM modetest binary file, do the following:
> >
> > 1. Ensure that you have the latest QLI software. If you don’t, see [Release Notes](https://docs.qualcomm.com/bundle/publicresource/topics/RNO-251013063244/ReleaseNote.html) and [Qualcomm Linux Build Guide](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-254/introduction.html).
> > 2. To generate the binary, go to the workspace <workspace> and run the following commands:
> >
> >
> >
> > >
> > >
> > > export SHELL=/bin/bash
> > > Copy to clipboard
> > >
> > >
> > > MACHINE=qcs8300-ride-sx DISTRO=qcom-wayland source setup-environment
> > > Copy to clipboard
> > >
> > >
> > > bitbake -fc install libdrm
> > > Copy to clipboard
> > >
> > >
> > > The system generates the binary at `/build-qcom-wayland/tmp-glibc/work/armv8-2a-qcom-linux/libdrm/2.4.120/image/usr/bin/modetest` directory.
> > 3. To push the modetest binary file to the device, run the following commands:
> >
> >
> >
> > >
> > >
> > > mount -o remount,rw /usr
> > > Copy to clipboard
> > >
> > >
> > > scp /build-qcom-wayland/tmp-glibc/work/armv8-2a-qcom-linux/libdrm/2.4.120/image/usr/bin/modetest root@:/usr/bin
> > > Copy to clipboard
> >
> >
> >
> > Note
> >
> >
> > If prompted for a password, enter `oelinux123`.
> >
> >
> >
> > **Run DRM modetest application**
> >
> >
> > To run the DRM modetest application, do the following:
> >
> >
> > Note
> >
> >
> > You must enable SSH to access your host device. For instructions, see [Sign in using SSH](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-254/how_to.html#use-ssh).
> >
> > 1. To kill the Weston client application, run the following commands in the device shell:
> >
> >
> >
> > >
> > >
> > > mount -o remount,rw /
> > > Copy to clipboard
> > >
> > >
> > > ps -A | grep weston
> > > Copy to clipboard
> > >
> > >
> > > **Sample output:**
> > >
> > >
> > > 824 ? 00:00:12 weston
> > > 1090 ? 00:00:00 weston-keyboard
> > > 1092 ? 00:00:01 weston-desktop-
> > > Copy to clipboard
> > >
> > >
> > > Use the Weston process ID from the sample Weston process list to
> > > kill the Weston processes.
> > 2. To kill all Weston processes, run the following command:
> >
> >
> >
> > >
> > >
> > > killall weston
> > > Copy to clipboard
> > 3. To change permissions of the modetest application, run the following command:
> >
> >
> >
> > >
> > >
> > > chmod 0777 /usr/bin/modetest
> > > Copy to clipboard
> > 4. To know the connector IDs and modes, run the following command:
> >
> >
> >
> > >
> > >
> > > /usr/bin/modetest -c msm_drm > /opt/drm_mode.txt
> > > Copy to clipboard
> > 5. To check for DRM modes and connector information, pull the `/opt/drm_mode.txt` file locally on your host computer. Use the Secure Copy Protocol (SCP) to pull the `drm_mode.txt` file from the device to your host computer. For example,
> >
> >
> >
> > >
> > >
> > > scp -r root@:/opt/drm_mode.txt
> > > Copy to clipboard
> > >
> > >
> > > Note
> > >
> > >
> > > When prompted for a password, enter `oelinux123`.
> > >
> > >
> > > The output as shown in the following figure is from the
> > > `/opt/drm_mode.txt` file.
> > >
> > > 
> > >
> > > **Figure: Command prompt output**
> > 6. To fetch the connector ID and mode name, use the relevant values from the `/opt/drm_mode.txt` file:
> >
> >
> >
> > >
> > >
> > > modetest -c msm_drm -s :
> > > Copy to clipboard
> > 7. To start the modetest application, run the following sample command using the connector ID and the mode name retrieved from the `/opt/drm_mode.txt` file. For example:
> >
> >
> >
> > >
> > >
> > > /usr/bin/modetest -c msm_drm -s 32:1920x1080-60
> > > Copy to clipboard
> > >
> > >
> > > Note
> > >
> > >
> > > Start the DRM modetest application and ignore the warning log: `Failed to set gamma: Function not implemented`.
> > >
> > > 
> > >
> > > **Figure: DRM modetest sample application output screen**
> > 8. To kill the modetest application, select **CTRL + C**.
> >
> >
> >
> > >
> > >
> > > Note
> > >
> > >
> > > Ensure that you [Relaunch Weston](https://docs.qualcomm.com/doc/80-70022-18/topic/debug.html#relaunch-weston).
>
>
> ### Run GStreamer video playback applications
>
>
>
> >
> >
> > To run the GStreamer sample applications, you must ensure that the DisplayPort setup is verified. For information on prerequisites, see [Sample applications](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-50/example-applications.html).
> >
> >
> > To run the sample video test cases using `gst-launch-1-0`, see [With video playback as an example](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-50/video-playback-use-cases.html).
> >
> >
> > Note
> >
> >
> > Before running the test cases, ensure that you meet the [prerequisites](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-50/gstreamer-application-use-cases.html).
>
> - *class* tabincludedirective
>
> - >
> >
> >
> >
> >
> >
> > **Figure: DisplayPort setup workflow**
> >
> > The display subsystem provides the Weston and Wayland compositors, along with
> > `libdrm`, which interact with the DPU driver to render the Wayland
> > client applications. The sample test applications are used to evaluate
> > the basic rendering of the Wayland applications and to connect to the
> > DisplayPort.
> >
> >
> > Connect the DisplayPort cable to the eDP1 connector as shown in the following figure.
> >
> > 
> >
> > **Figure: IQ-8275 DisplayPort setup**
>
>
>
> ### Verify DisplayPort setup
>
>
>
> >
> >
> > To verify the DisplayPort setup, power on the device. Weston launches automatically during boot. After running the commands, you should see the following Weston flower pattern.
> >
> > 
> >
> > **Figure: Weston flower pattern**
> >
> > Note
> >
> >
> > If you connect the eDP cable after powering on the device, see [Troubleshoot display issue when HDMI/eDP cable is connected after boot](https://docs.qualcomm.com/doc/80-70022-18/topic/debug.html#connect-hdmi-cable-bootup).
>
>
>
> After you have set up the DisplayPort, run the following display test applications to verify the display functionality.
>
>
> ### Run the Weston simple EGL client application
>
>
>
> >
> >
> > >
> > >
> > > Weston simple EGL is a sample test application that you can use to verify the composition and rendering of frames on the DisplayPort. To run the application, run the following commands:
> >
> >
> >
> > Note
> >
> >
> > You must enable SSH to access your host device. For instructions, see [Sign in using SSH](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-254/how_to.html#use-ssh).
> >
> >
> > mount -o remount,rw /
> > Copy to clipboard
> >
> >
> > su
> > Copy to clipboard
> >
> >
> > . /etc/profile
> > Copy to clipboard
> >
> >
> > export XDG_RUNTIME_DIR=/dev/socket/weston && mkdir -p $XDG_RUNTIME_DIR
> > Copy to clipboard
> >
> >
> > cd /usr/bin
> > Copy to clipboard
> >
> >
> > export WAYLAND_DISPLAY=wayland-1 && weston-simple-egl
> > Copy to clipboard
> >
> >
> > The following figure shows the Weston simple EGL client application running on the display monitor.
> >
> > 
> >
> > **Figure: Weston simple EGL client application**
> >
> > Note
> >
> >
> > To kill the application, select **CTRL + C**.
>
>
> ### Run DRM modetest
>
>
>
> >
> >
> > To verify the display driver topology, run the DRM modetest. This test ensures that the DSI and the DPU paths are working effectively.
>
>
>
> **Generate the DRM modetest binary**
>
>
>
> >
> >
> > By default, the DRM modetest binary isn’t included in the display subsystem. To generate the DRM modetest binary file, do the following:
> >
> >
> > Note
> >
> >
> > You must enable SSH to access your host device. For instructions, see [Sign in using SSH](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-254/how_to.html#use-ssh).
> >
> > 1. Ensure that you have the latest QLI software. If you don’t, see [Release Notes](https://docs.qualcomm.com/bundle/publicresource/topics/RNO-251013063244/ReleaseNote.html) and [Qualcomm Linux Build Guide](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-254/introduction.html).
> > 2. To generate the binary, go to the workspace <workspace> and run the following commands:
> >
> >
> >
> > >
> > >
> > > export SHELL=/bin/bash
> > > Copy to clipboard
> > >
> > >
> > > MACHINE=qcs6490-rb3gen2-core-kit DISTRO=qcom-wayland source setup-environment
> > > Copy to clipboard
> > >
> > >
> > > bitbake -fc install libdrm
> > > Copy to clipboard
> > >
> > >
> > > The system generates the binary at `/build-qcom-wayland/tmp-glibc/work/armv8-2a-qcom-linux/libdrm/2.4.120/image/usr/bin/modetest` directory.
> > 3. To push the modetest binary file to the device, run the following commands:
> >
> >
> >
> > >
> > >
> > > mount -o remount,rw /usr
> > > Copy to clipboard
> > >
> > >
> > > scp /build-qcom-wayland/tmp-glibc/work/armv8-2a-qcom-linux/libdrm/2.4.120/image/usr/bin/modetest root@:/usr/bin
> > > Copy to clipboard
> > >
> > >
> > > Note
> > >
> > >
> > > If prompted for a password, enter `oelinux123`.
> >
> >
> >
> > **Run DRM modetest**
> >
> >
> > To run the DRM modetest application, do the following:
> >
> >
> > Note
> >
> >
> > You must enable SSH to access your host device. For instructions, see [Sign in using SSH](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-254/how_to.html#use-ssh).
> >
> > 1. To kill the Weston client application, run the following commands in the device shell:
> >
> >
> >
> > >
> > >
> > > mount -o remount,rw /
> > > Copy to clipboard
> > >
> > >
> > > ps -A | grep weston
> > > Copy to clipboard
> > >
> > >
> > > **Sample output:**
> > >
> > >
> > > 824 ? 00:00:12 weston
> > > 1090 ? 00:00:00 weston-keyboard
> > > 1092 ? 00:00:01 weston-desktop-
> > > Copy to clipboard
> > >
> > >
> > > Use the Weston process ID from the sample Weston process list to
> > > kill the Weston processes.
> > 2. To kill all Weston processes, run the following command:
> >
> >
> >
> > >
> > >
> > > killall weston
> > > Copy to clipboard
> > 3. To change permissions of the modetest application, run the following command:
> >
> >
> >
> > >
> > >
> > > chmod 0777 /usr/bin/modetest
> > > Copy to clipboard
> > 4. To know the connector IDs and modes, run the following command:
> >
> >
> >
> > >
> > >
> > > /usr/bin/modetest -c msm_drm > /opt/drm_mode.txt
> > > Copy to clipboard
> > 5. To check for DRM modes and connector information, pull the `/opt/drm_mode.txt` file locally on your host computer. Use the Secure Copy Protocol (SCP) to pull the `drm_mode.txt` file from the device to your host computer. For example,
> >
> >
> >
> > >
> > >
> > > scp -r root@:/opt/drm_mode.txt
> > > Copy to clipboard
> > >
> > >
> > > Note
> > >
> > >
> > > When prompted for a password, enter `oelinux123`.
> > >
> > >
> > > The output as shown in the following figure is from the
> > > `/opt/drm_mode.txt` file.
> > >
> > > 
> > >
> > > **Figure: Command prompt output**
> > 6. To fetch the connector ID and mode name, use the relevant values from the `/opt/drm_mode.txt` file:
> >
> >
> >
> > >
> > >
> > > modetest -c msm_drm -s :
> > > Copy to clipboard
> > 7. To start the modetest application, run the following sample command using the connector ID and the mode name retrieved from the `/opt/drm_mode.txt` file. For example:
> >
> >
> >
> > >
> > >
> > > /usr/bin/modetest -c msm_drm -s 32:1920x1080-60
> > > Copy to clipboard
> > >
> > >
> > > Note
> > >
> > >
> > > Start the DRM test application and ignore the warning log: `Failed to set gamma: Function not implemented`.
> > >
> > > 
> > >
> > > **Figure: DRM modetest sample application output screen**
> > 8. To kill the modetest application, select **CTRL + C**.
> >
> >
> >
> > >
> > >
> > > Note
> > >
> > >
> > > Ensure that you [Relaunch Weston](https://docs.qualcomm.com/doc/80-70022-18/topic/debug.html#relaunch-weston).
>
>
> ### Run GStreamer video playback applications
>
>
>
> >
> >
> > To run the GStreamer sample applications, you must ensure that the DisplayPort setup is verified. For information on prerequisites, see [Sample applications](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-50/example-applications.html).
> >
> >
> > To run the sample video test cases using `gst-launch-1-0`, see [With video playback as an example](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-50/video-playback-use-cases.html).
> >
> >
> > Note
> >
> >
> > Before running the test cases, ensure that you meet the [prerequisites](https://docs.qualcomm.com/bundle/publicresource/topics/80-70022-50/gstreamer-application-use-cases.html).
## Next steps
- See [Display specifications](https://docs.qualcomm.com/doc/80-70022-18/topic/features.html#display-specifications).
Last Published: Oct 15, 2025
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