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Questions about GIGABYTE products => Motherboards with AMD processors => Topic started by: bruceas on November 01, 2011, 11:33:24 am

Title: A75m-UD2H (Bios F4) Black screen if boot with monitor off
Post by: bruceas on November 01, 2011, 11:33:24 am

Hi, i have a plasma LG 50PC55 connected by HDMI (with DVI is the same).
If when i boot the PC, the Tv is OFF, when i turn on the TV there is no signal, i must reboot the PC with the TV on.
Some times the TV is ON but the PC do not send signal to it when it boot and i must restart the PC.

I'd like to have in BIOS the option to select the default output (HDMI, DVI, VGA, DisplayPort) to permit boot with monitor off.
Is there a way to enable HDMI output after boot?

Thanks.

Title: Re: A75m-UD2H (Bios F4) Black screen if boot with monitor off
Post by: autotech on November 02, 2011, 06:43:07 pm

That is usually controlled by your video card if you are using onboard graphics you can tell it to boot using the onboard. I know amd/ ati cards if you use a tv it wont detect it if you turn tv on after the pc. Unless you use a regualr monitor and open CCC and tell it to manually detect. Otherwise turn on tv and then puter.

Title: Re: A75m-UD2H (Bios F4) Black screen if boot with monitor off
Post by: bruceas on November 03, 2011, 01:46:45 pm

Quote from: autotech on November 02, 2011, 06:43:07 pm

That is usually controlled by your video card if you are using onboard graphics you can tell it to boot using the onboard. I know amd/ ati cards if you use a tv it wont detect it if you turn tv on after the pc. Unless you use a regualr monitor and open CCC and tell it to manually detect. Otherwise turn on tv and then puter.

I'am using onboard graphics and the bios option is "onboard".

I'd like to have the option to force output to HDMI, so it will work if i boot with TV off.

Thanks

Title: Re: A75m-UD2H (Bios F4) Black screen if boot with monitor off
Post by: autotech on November 04, 2011, 01:34:27 am

Until someone comes and tells you differently id say email support and ask if they are planning a newer bios with that option otherwise you might be out of luck on the current bios. Maybe there might be a windows program that would help you but that poses it own set of problems.