Tip: Configuring and Enabling TV out on Nvidia
I have been a mythtv user for the past two years using Knoppmyth. A few weeks ago I migrated to Mythbuntu. I love Mythbuntu's Myth Control Center and the ability to keep the system updated via Synaptec.
Knoppmyth was great in that the recent releases of Knoppmyth automatically configured and enabled the TV out on my PVR-350 TV tuner card. After migrating to Mythbuntu, it wasn't long before I discovered that configuring/enabling TV out on the PVR-350 was not going to be as easy.
I realized that this was an opportunity to begin understanding how to display Mythbuntu on my analog TV via the TV out on my Nvidia 6200 graphics card. This card has D-Sub, DVI, and TV out. The package included a dongle for composite video, s-video, and component. This was a great solution because although I have an analog TV now, sometime in the future I will probably upgrade to a digital/HD TV. The TV out dongle that came with the 6200 will allow me to output video (including the desktop) to an analog TV (via composite and s-video) or, later on, to a digital/HD TV via the component or DVI connector.
The only problem I had was that I did not have a good understanding of how to configure/enable the TV out on the Nvidia 6200 video card.
Below is an explanation of how I configured and enabled the TV out on the Nvidia 6200 video card, which allowed me to use the TV out dongle that game with this graphics card.
NOTE: This post applies specifically to the Nvidia 6200 video card, but may be useful for other Nvidia cards too. This post DOES NOT apply to those using ATI for video output.
STEP 1. Installed the video card (see manual that came with card).
STEP 2. Installed nVidia proprietary graphics driver
Note: Before proceeding, be sure that the machine is connected to the Internet.
- Click on Settings --> Screens and Graphics
- Enter the password
- In the windows titled Screen and Graphics Preferences, Click on the Graphics Card tab.
- Click on the Driver drop down list
- Keep the default Choose Driver By Name option and select nvidia.
- Click the OK button
The driver will be downloaded and installed. Enter password when prompted.
Log out and log back in to have the new driver take effect.
STEP 3. Backup Current XORG.CONF File.
- At the desktop, click on Applications --> Accessories --> Terminal.
- Type the following command...
sudo cp /etc/X11/xorg.conf etc/X11/xorg.conf.backup1
STEP 3. Create a New XORG.CONF File.
- Connect the TV out dongle to the back of the Nvidia graphics card, as well as to the analog TV (composite or s-video).
- Turn ON THE TV - VERY IMPORTANT
- Launch nvidia-settings by typing the following command...
- A window titled NVIDIA X Server Settings will appear. Click on the second option in the list (left side) titled X Server Display Configuration
Note: Two boxes will appear on the right side titled Monitor and TV-Out indicating that the TV has been detected.
- In the section titled Display, click on the Configure... button.
- A small window will appear titled Configure Display Device and select the TwinView option (third in the list) and then click on the OK button.
- Back to the NVIDIA X Server Settings window and in the Display section, click on the Position drop down list and select Clone. Then, click on the Apply button.
Note: The desktop should now appear on the TV screen.
- Still in the NVIDIA X Server Settings window, click on the Save to X Configuration File button.
- A small window will appear titled Save X Configuration.
- Change the path of the file from /home/username/xorg.conf to /home/username/xorg.conf.twinview
- Click on the Save button.
- Back to the NVIDIA X Server Settings window, click on the Quit button.
You should now be back at the terminal.
STEP 4. Replace XORG.CONF File with XORG.CONF.TWINVIEW
- At the terminal, type in the following command...
sudo cp /home/username/xorg.conf.twinview /etc/X11/xorg.conf
STEP 5. Restart X Server
- Click on Applications --> Quit
- Click on Log Out
You should now be at a login screen.
- Click on the user name in the login list
- Enter the password
Video should appear on the TV screen AND monitor.
I hope this helps others.
Long time Mythbuntu User. Current Mythbuntu System: Intel i3, 4Gb RAM, 1.3 TB Storage, Mythbuntu 12.04/0.27 fixes, HDTV 5500 Tuner, Ceton Infiniti 4 Tuner