DVI to HDMI Output not Working Properly

[killercoderninja]

EDIT: skip down four posts

Greetings Ubuntu community,

This is my first post to this community. Hopefully someone can help

I just installed Mythbuntu on an old PC to use as an HTPC in my apartment. I got it all configured the way I wanted it, but it won't connect to my television properly.

I'm running mythbuntu 9.10 on an amd sempron with an ati Radeon 9550, which has a vga and dvi connector. I did all of my configuration with an old crt on the vga output. Everything worked fine. When I unplugged the vga and connected my dvi to hdmi cable between the card and the television, the system failed to boot. It would show the BIOS on the tv, then "grub loading...," then I get "no signal" on the television while the computer just sits there. No hard drive, no processor, no disk. Just 100% idle.

When I connect both the vga monitor and the television, GRUB comes up on the vga just fine, while the tv shows "no signal," with a quick microsecond flash of grub every couple seconds. I hit enter, and the mythbuntu splash shows only on the vga. The tv shows straight "no signal," no flashing. Then the pinwheel on BOTH monitors, then the mythbuntu loading screen with the little ticker. It goes for about half of its time, then the tv goes "no signal" again, this time for good. The vga monitor flashes, changes resolution, then stretches everything out. It is still at 1024x768 according to the display settings, and it looks right, but the fonts are all very small. The computer then runs as normal, just with really small font and only on the vga monitor.

After playing around non-stop for two days, I have discovered that if I boot with both monitors but unplug the vga during the splash screen (before loading starts) the tv will work perfectly, automatically at its perfect resolution and everything. How do I make this happen without involving the vga monitor at all? Kinda sucks having it sitting in the middle of the living room

I have basic familiarity with linux commands, but that's it. If a file needs to be edited or a configuration changed, please ALSO TELL ME WHERE TO FIND IT! Again, I am on Mythbuntu 9.10, which only has an applications menu.

Thanks all!!

[killercoderninja]

Alright, I'm really not sure what I'm doing, but some more hours on Google have lead me to a command called xrandr. It can be used to do manual configurations of resolutions and settings. With the tv display working properly, I plugged in the vga monitor and ran

xrandr --output VGA-0 --mode 1024x768 --rate 75

and now I have cloned the tv onto the vga! I'm going to try booting up into the vga monitor, and see if I can use xrandr to bring up the tv...

[killercoderninja]

When I boot to the vga and use xrandr to clone to the tv, it SAYS via xrandr -q that the tv is connected and outputting properly at 1920x1080 @ 60, but the tv says "no signal"

I am at a loss...

[killercoderninja]

Bump

[killercoderninja]

It would seem that the problem is not with Ubuntu at all. Rather, GRUB is what hangs without the vga monitor connected. What is strange is that grub will accept the vga monitor on the vga output, or through a converter on the dvi output, so I know the tv is the problem, not the monitor.

How do I configure GRUB to go totally automatically, without hanging to draw the selection menu? menu.lst is not where it usually lives... :-\

[killercoderninja]

Hello?