Must boot installer in safe graphics mode

[pdragon]

If I choose regular mode to install, my tv goes blank after the installer progress bar finishes and the installer desktop is about to load. If I choose safe graphics mode instead, it boots fine and I can continue installing as normal.
If I hook a regular VGA monitor up to my computer during the installer boot, it works fine in regular mode, so it's something to do with sending via svideo to my tv.

I have an nvidia 5500 AGP card connected via svideo to my tv.

[David Morris (dave-greenacre)]

I believe this is because the livecd isn't configured to use tv-out in xorg. The reason it appears before hand booting is because this is sent out by the card to all devices connected to it.

Once you've installed you should be able to select to output to your TV.

Setting to Won't Fix since its the liveCD xorg file which determines this.

[pdragon (pdragon)]

Just confirming that everything works fine after the install. Didn't even have to tell it to use Svideo out and did anyway after rebooting (although I did put the setting in xorg.conf manually just for my own sanity so I know it's configured properly.

[David Morris (dave-greenacre)]

This is a bug however we won't be fixing it. The reason for this is that the Ubuntu liveCD's don't use the binary NVIDIA drivers and the free implementation (nv) doesn't support tv-out. However to work around this as you stated you can launch the liveCD in safe graphics mode which uses the vesa software driver, which does provide tv-out support.

[Peter Schachte (schachte-csse)]

Would it be possible to make safe graphics mode the default? For Mythbuntu much more than Ubuntu, it's fairly likely that people will want to install using their TV as display, so this is likely to affect many users. And the failure mode is a blank screen, so it seems pretty mysterious. Once you switch to safe graphics mode, the mythbuntu installer works perfectly well displaying on a TV; it would be a shame if people give up when they see it appear to hang. Since this is only for installation, is there really much lost by just always using safe graphics mode?

[Mario Limonciello (superm1)]

Well there are plenty of TVs however that it does work on perfectly with normal mode on a TV. I can name 3 that i've personally tried it with without issue. By doing it in normal mode, I get the full resolution the TV supports too...

[Peter Schachte (schachte-csse)]

If the default were safe graphics mode, it would work for everyone without
having to know about the hidden option, while people who know what they're
doing could still select "normal graphics mode" for full resolution. Anyway,
it's just low resolution for the few minutes of installation, whereas hanging
after the splash screen is likely to completely defeat many newbies.

No criticism intended, BTW. Mythbuntu is *so* much easier than my first
install in the 0.18 days....

--
Peter Schachte The highest result of education is tolerance.
<email address hidden> -- Helen Keller, 'Optimism,' 1903
www.cs.mu.oz.au/~schachte/
Phone: [phone]