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## Contents
* [1 Introduction](#Introduction)
* [2 Possible Issues](#Possible_Issues)
* [3 Step 1: Clone desktop to TV (CRT).](#Step_1:_Clone_desktop_to_TV_.28CRT.29.)
* [4 Step 2: Using the correct settings for NVIDIA X Server Settings](#Step_2:_Using_the_correct_settings_for_NVIDIA_X_Server_Settings)
* [5 Step 3: Using the correct settings for MPlayer](#Step_3:_Using_the_correct_settings_for_MPlayer)
* [6 Step 4: Gnome Video Playback with Totem (Videos)](#Step_4:_Gnome_Video_Playback_with_Totem_.28Videos.29)
* [7 REFERENCES](#REFERENCES)
## Introduction
This article tries to address the problem of video tearing on the TV via Nvidia video card. The scenario typically involves the VGA (D-sub or DVI) connection to the monitor (LCD or CRT) with the S-Video handling the TV output.
This approach has been confirmed to work with Geforce 5900XT, Geforce 7300GT, and Geforce 7600GS. (All three have onboard TV-encoders on the GPU.)
## Possible Issues
Be aware that you may run into possible issues with Beryl 0.20, if the wrong **Option** in **xorg.conf** is used. (You will encounter unusual graphical issues).
There is a known issue with HD mode of Nvidia cards and PAL standard. As in it doesn't work! :(
## Step 1: Clone desktop to TV (CRT).
In this example we have connected the TV-OUT of the video card to the S-Video IN of our TV (CRT solution). The driver version we're using is **1.0-9755** with Xorg **7.2**. Typically, you can let the Nvidia driver handle detecting TV-Out (S-Video). However, there are times where the driver will not detect things correctly, and you may have to manually override it via **xorg.conf**, (by specifically setting the values). **CRT-0** is the computer monitor, and **TV-0** is obviously the TV.
NOTE: **PAL-B** is seen below as this is the standard for Australian TVs. (See **[1]** in the **REFERENCES** section for other regions around the world).
Use **nano** or **vim** to open **/etc/X11/xorg.conf** file, scroll down until you find the **"Device"** section.
It will be something like:
```
Section "Device"
Identifier "Card0"
Driver "nvidia"
VendorName "ALL"
BoardName "ALL"
EndSection
```
Add the following:
```
Option "TwinView"
Option "TwinViewOrientation" "Clone"
Option "MetaModes" "CRT-0: 1024x768, TV-0: 1024x768"
Option "HorizSync" "CRT-0: 30-81; TV-0: 30-50"
Option "VertRefresh" "CRT-0: 56-76; TV-0: 60"
Option "ConnectedMonitor" "CRT-0, TV-0"
Option "TVStandard" "PAL-B"
Option "TVOutFormat" "SVIDEO"
```
So it becomes:
```
Section "Device"
Identifier "Card0"
Driver "nvidia"
VendorName "ALL"
BoardName "ALL"
Option "TwinView"
Option "TwinViewOrientation" "Clone"
Option "MetaModes" "CRT-0: 1024x768, TV-0: 1024x768"
Option "HorizSync" "CRT-0: 30-81; TV-0: 30-50"
Option "VertRefresh" "CRT-0: 56-76; TV-0: 60"
Option "ConnectedMonitor" "CRT-0, TV-0"
Option "TVStandard" "PAL-B"
Option "TVOutFormat" "SVIDEO"
EndSection
```
Save changes, log out of the system, and restart X-Server by pressing **Ctrl-Alt-Backspace**. This should bring you back to the login screen. You will notice a clone of the screen will appear on your TV.
For more options and details, please see **[2]** and **[3]** in the **REFERENCES** section.
## Step 2: Using the correct settings for NVIDIA X Server Settings
Go to **NVIDIA X Server Settings**.
(In **KDE**, this is done by **K-menu** (icon) => **System** => **NVIDIA X Server Settings**).
In the section **X Screen 0**, there is an entry called **X Server XVideo Settings**, click on that.
Now you will see three entries:
1. **Video Texture Adaptor**
Enable => **Sync to VBlank** (Make sure this is checked with a tick)
2. **Video Blitter Adaptor**
Enable => **Sync to VBlank** (Make sure this is checked with a tick)
3. **Sync to this display device**
Select => **TV-0 (TV-0)**
Then click on **Quit** to save changes.
## Step 3: Using the correct settings for MPlayer
Now in MPlayer, right-click and select **Preferences**. Select the **Video** tab. Select **xv** in the **Available Drivers:** section.
Also enable (checkmark appears in box): **Enable double buffering**, **Enable direct rendering**, and **Enable frame dropping**.
Select **OK**, close MPlayer and then restart MPlayer to enable changes. Do a test with movie or video clip that contains lots of fast action scenes (eg: Anime). There should be little or no tearing when playing video through MPlayer on your TV.
If you still have issues with tearing, consider adjusting the values for **"VertRefresh"** first. As a last resort, you can also adjust the **modeline** in **xorg.conf**. See **[4]** and **[5]** in **REFERENCES** section for details.
## Step 4: Gnome Video Playback with Totem (Videos)
You can enable vsync on your driver's options if you like.
Edit /etc/enviroment and add the lines:
```
CLUTTER_PAINT=disable-clipped-redraws:disable-culling
CLUTTER_VBLANK=True
```
Then reboot your system.
## REFERENCES
**[1]** [http://en.wikibooks.org/wiki/NVidia/TV-OUT](http://en.wikibooks.org/wiki/NVidia/TV-OUT)
**[2]** [http://us.download.nvidia.com/XFree86/Linux-x86/1.0-9755/README/appendix-g.html](http://us.download.nvidia.com/XFree86/Linux-x86/1.0-9755/README/appendix-g.html)
**[3]** [http://us.download.nvidia.com/XFree86/Linux-x86/1.0-9755/README/appendix-h.html](http://us.download.nvidia.com/XFree86/Linux-x86/1.0-9755/README/appendix-h.html)
**[4]** [http://www.mythtv.org/wiki/Working_with_Modelines](http://www.mythtv.org/wiki/Working_with_Modelines)
**[5]** [http://www.mythtv.org/wiki/Modeline_Database](http://www.mythtv.org/wiki/Modeline_Database)
**[6]** [https://bbs.archlinux.org/viewtopic.php?pid=1017705#p1017705](https://bbs.archlinux.org/viewtopic.php?pid=1017705#p1017705)