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General cleanup of new merged pull requests (#1458)

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* Update sensor.synologydsm.markdown

Changes to spelling and formatting.

* Update sensor.command_line.markdown

Fix spelling, grammar and rewrote some instructions.

* Update hdmi_cec.markdown

Fix spelling and formatting.
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Fredrik Lindqvist 2016-11-19 11:31:58 +01:00 • committed by Fabian Affolter
parent 2641693202
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source/_components/hdmi_cec.markdown
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@ -33,20 +33,28 @@ Create a symlink to the `cec` installation.
$ ln -s /usr/local/lib/python3.4/dist-packages/cec /path/to/your/venv/lib/python3.4/site-packages
```
For the default virtual environment of a [Raspberry Pi AIO](/getting-started/installation-raspberry-pi-all-in-one/) the command would be as follows.
For the default virtual environment of a [Raspberry Pi All-In-One installation](/getting-started/installation-raspberry-pi-all-in-one/) the command would be as follows.
```bash
$ ln -s /usr/local/lib/python3.4/dist-packages/cec /srv/hass/hass_venv/lib/python3.4/site-packages
```
<p class='note'>If after symlinking and adding `hdmi_cec:` to your configuration you are getting the following error in your logs,
`* failed to open vchiq instance` you will also need to add the user account Home Asssistant runs under, to the `video` group. To add the Home Assisitant's user account to the `video` group, run the following command. `$ usermod -a -G video <hass_user_account>`
`* failed to open vchiq instance` you will also need to add the user account Home Asssistant runs under, to the `video` group. To add the Home Assistant user account to the `video` group, run the following command. `$ usermod -a -G video <hass_user_account>`
</p>
## {% linkable_title Testing your installation %}
* Login to Raspberry Pi `ssh pi@your_raspberry_pi_ip`
* at the command line type: `echo scan | cec-client -s -d 1`
* Login to Raspberry Pi
```bash
ssh pi@your_raspberry_pi_ip
```
* at the command line type:
```bash
echo scan | cec-client -s -d 1
```
* This will give you the list of devices that are on the bus
```bash