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Merge pull request #2166 from balena-os/hdmi-port-1-docs

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Add information about hdmi port 2 config vars
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flowzone-app[bot] 2023-05-08 20:34:43 +00:00 committed by GitHub
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docs/configurations.md
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@ -7,7 +7,7 @@ Configuration variables allow you to provide runtime configuration to the host O
This list contains configuration variables that can be used with all balena devices, some of which will automatically appear for devices with Supervisor v7.0.0 and greater. While they may not automatically populate in the dashboard, most of these variables can still be used with older Supervisor versions, so be sure to check the _Valid from_ column:
| Name | Type | Reboots | Default | Description | Valid from |
| --- | --- | --- | --- | --- | --- |
| ---------------------------------------- | ------- | ------- | ------------------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------- |
| BALENA_SUPERVISOR_OVERRIDE_LOCK | boolean | false | false | Override any existing locks preventing any changes to the app. | v1.0.0 |
| BALENA_SUPERVISOR_VPN_CONTROL | boolean | false | true | Enable / Disable VPN service on device. | v1.1.0 |
| BALENA_SUPERVISOR_CONNECTIVITY_CHECK | boolean | false | true | Enable / Disable VPN connectivity check | v1.3.0 |
@ -37,7 +37,7 @@ In addition to these values, there may be some device-type specific configuratio
This device type utilizes a [config.txt](https://www.raspberrypi.org/documentation/configuration/config-txt/README.md) file of which we offer some values to be configured. The following values are not all the configurations found in the `config.txt` file and are just balena additions or edits to the OEM version.
| Name | Type | Reboots | Default | Description | Valid from |
| --- | --- | --- | --- | --- | --- |
| --------------------------------------- | ------- | ------- | -------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------- |
| BALENA_HOST_CONFIG_dtoverlay | string | true | "vc4-fkms-v3d" | Allows loading [custom device tree overlays](https://github.com/raspberrypi/linux/blob/rpi-4.19.y/arch/arm/boot/dts/overlays/README). | v1.0.0 |
| BALENA_HOST_CONFIG_device_tree_overlay | string | true | "vc4-fkms-v3d" | Allows loading [custom device tree overlays](https://github.com/raspberrypi/linux/blob/rpi-4.19.y/arch/arm/boot/dts/overlays/README). | v1.0.0 |
| BALENA_HOST_CONFIG_dtparam | string | true | "i2c_arm=on","spi=on","audio=on" | Allows setting parameters for the default overlay. | v1.0.0 |
@ -45,6 +45,9 @@ This device type utilizes a [config.txt](https://www.raspberrypi.org/documentati
| BALENA_HOST_CONFIG_disable_splash | integer | true | 1 | Enable / Disable the splash screen to display image on boot. | v1.0.0 |
| BALENA_HOST_CONFIG_gpu_mem | integer | true | 16 | Define device GPU memory in megabytes. | v1.0.0 |
| BALENA_HOST_CONFIG_gpio | string | true | undefined | Allows GPIO pins to be set to specific modes and values at boot time. See [here](https://www.raspberrypi.org/documentation/configuration/config-txt/gpio.md) for more. | v1.0.0 |
| BALENA_HOST_CONFIG_hdmi_force_hotplug:1 | number | true | undefined | Force the HDMI hotplug signal on HDMI port 2. See [here](https://www.raspberrypi.com/documentation/computers/config_txt.html#hdmi_force_hotplug) for more. | v14.6.0 |
| BALENA_HOST_CONFIG_hdmi_group:1 | number | true | undefined | Define the HDMI output group on HDMI port 2. See [here](https://www.raspberrypi.com/documentation/computers/config_txt.html#hdmi_group) for more. | v14.6.0 |
| BALENA_HOST_CONFIG_hdmi_mode:1 | number | true | undefined | Define the HDMI output format on HDMI port 2. See [here](https://www.raspberrypi.com/documentation/computers/config_txt.html#hdmi_mode) for more. | v14.6.0 |
## ConfigFS
@ -53,7 +56,7 @@ This device type utilizes a [config.txt](https://www.raspberrypi.org/documentati
This device type utilizes a [configFS](https://lwn.net/Articles/148973/) file interface that allows definition of arbitrary functions and configurations.
| Name | Type | Reboots | Default | Description | Valid from |
| --- | --- | --- | --- | --- | --- |
| ------------------------- | ------ | ------- | --------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------- |
| BALENA_HOST_CONFIGFS_ssdt | string | true | undefined | Allows configuring a user defined SSDTs from userspace via the configfs interface. See [SSDT Overlays](https://www.kernel.org/doc/html/latest/admin-guide/acpi/ssdt-overlays.html#ssdt-overlays). | v10.9.2 |
## Extra-uEnv
@ -63,7 +66,7 @@ This device type utilizes a [configFS](https://lwn.net/Articles/148973/) file in
This device type utilizes a file which we created to proxy configurations to [extlinux.conf](https://wiki.syslinux.org/wiki/index.php?title=Config).
| Name | Type | Reboots | Default | Description | Valid from |
| --- | --- | --- | --- | --- | --- |
| ----------------------------- | ------ | ------- | --------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------- |
| BALENA_HOST_EXTLINUX_isolcpus | string | true | undefined | Allows to isolate CPU cores from kernel scheduler. See [kernel parameters](https://www.kernel.org/doc/html/latest/admin-guide/kernel-parameters.html?highlight=isolcpu#the-kernel-s-command-line-parameters). | v7.10.0 |
| BALENA_HOST_EXTLINUX_fdt | string | true | undefined | Specify a filename with extension from userspace to use as DTB. See [Device Tree Binary](https://elinux.org/Jetson/TX2_DTB). | v11.9.0 |
@ -74,5 +77,5 @@ This device type utilizes a file which we created to proxy configurations to [ex
This device type utilizes a configurable hardware partition to set the mode for [UPHY lane assigment](https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/adaptation_and_bringup_tx2.html#wwpID0E0NL0HA).
| Name | Type | Reboots | Default | Description | Valid from |
| --- | --- | --- | --- | --- | --- |
| ----------------------------------------- | ------- | ------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------- |
| BALENA_HOST_CONFIG_odmdata_configurations | integer | true | 2 | Select with mode to configure UPHY lanes. See [UPHY lane assignment](https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/adaptation_and_bringup_tx2.html#wwpID0E0NL0HA). | v11.13.0 |