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[xboxmods2977]

QUOTE(AnnaOlum @ Jan 31 2012, 07:46 PM)

By the way - my HDTV is a LG 42PC51...

According to the service manual, your TV does not support Composite Sync, A.K.A. Sync on Green.
If you would like to connect your Xbox to this TV, you will have to either correct your LM1881 circuit (and pray that your TV accepts the signal), or connect to it via Xbox Component cables. Your YPbPr connections are on the back of the TV.

QUOTE(AnnaOlum @ Jan 31 2012, 10:40 PM)

Another thing: Where can I find the Pixel8 VGA BIOS? No luck on the usual places...

A bios change won't help you. Your issues are hardware related.

[AnnaOlum]

QUOTE(xboxmods2977 @ Feb 1 2012, 02:49 AM)

A bios change won't help you. Your issues are hardware related.

Yep, realized that now. Plugged out the LM1881 from its socket and it's still working on the first monitor.

[AnnaOlum]

Dang it! Switched the old LM1881 with a new one and it's still only working on the first monitor. Could it be the wiring?

[xboxmods2977]

Probably. Be sure to check your chip's orientation. Pin 1 is marked with a dot.

[AnnaOlum]

Yeah!!! Rewired it and now it works almost correctly. The only downside is that when i hook it up to my HDTV the picture constantly flickers and jumps on the screen. On another HDTV it works fine (but only 480p).
Is there a way to fix it?

[xboxmods2977]

Probably not. You've gotten it to work properly on an HDTV (unfortunately, not yours), which means everything is set up correctly now. The issue is that the VGA signal that the LM1881 method produces is not spec identical to a true VGA signal. For this reason, some LCD TV's with VGA input simply do not like it. The only other alternative that may work better is the xbox internal VGA mod, explained here.

Side note: Do be aware that some HD TV's, using the VGA input, cannot display 1080i resolutions properly. You can try switching that resolution off and just leave the 480p, and 720p resolutions on and see if that makes any difference.

[AnnaOlum]

Dumb question: Could it be possible that it's not working correctly because I have grounded the pins 11 + 12 & 13 + 14  and have no VGA bios installed?

[xboxmods2977]

If you're not using a VGA bios, how did you get a working image on an HDTV via its VGA connection?

[xboxmods2977]

Oh, yea. No different whether you are soft modded with a VGA bios, or hard modded with one.

[AnnaOlum]

Can I fix this?

[xboxmods2977]

OK

1. That was dumb. If you wanted to flash a VGA bios, why didn't you come back to ask someone which bios to use? A suitable VGA bios would have been X2 5035 or iND 5003

2. Not sure what your options are as I don't know much about debug bios'. Try downloading, burning, and booting a rescue CD, such as Hexen and hope that it boots. If it does, use that to flash one of the bios files I have noted above. If it doesn't boot, you may have to buy or build a modchip.

EDIT: Maybe Heimdall can comment here.

[AnnaOlum]

Nah, I meant the X2 5035.
But after the logo it doesn't boot to a dashboard. Is the TSOP flash incompatible with the softmod and do I have to rebuild my hdd?

[Heimdall]

Did you rebuild the disk with HeXEn? If not then that's your problem - the softmod dash and the TSOP dash are in different places.

[xboxmods2977]

For VGA, you want to flash the Frosty version of the 5035 bios.

[AnnaOlum]

Hm. Now the next problem occured. I flashed the box with Frosty's X2 5035 BIOS and now I don't get an output (it boots into XBMC and can I hear sound but I don't get an image) on my HDTV - neither with mode 1 + 3 (VGA) or mode 2 + 3 (HDTV).