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I connect my laptop to my TV using S-Video + audio jack. This worked perfectly in 10.10 but has stopped working in 11.04. I have tried switching from Ubuntu (Unity) to Ubuntu (No effects) and Ubuntu Classic, but it still doesn't work.

Ubuntu recognises that a second monitor is attached and picks the correct resolution. The TV screen remains blue as though there is no signal. The audio doesn't come through either. I have checked the cables are plugged in correctly, and the connection into the TV works (replacing the laptop with a DVD player works).

I am using an Intel graphics card, not NVIDIA.

Any suggestions on further troubleshooting steps?

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possible solution – d3vid Jun 9 '11 at 10:04
Please don't cross post! Pick the most appropriate site and stick with it. If you decide it's more appropriate somewhere else flag it for a moderator to migrate. – Caleb Jun 10 '11 at 11:23
up vote 0 down vote accepted

If you don't know what your graphics card is, type lspci in the terminal. You should see one of Intel, ATI or NVIDIA in the output.

Using your favourite search engine, find others with the same problem as you who are using the same family of video card. Find a workaround if there is one, or subscribe to the bug and hope for the best.

I've found references to S-Video problems across many releases of Ubuntu. Prevention is better than cure, so next time I'm testing from a Live CD before upgrading.

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