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Cant use my HDTV as sole monitor via HDMI

Last response: in Graphics & Displays
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April 5, 2012 7:45:57 AM

Hello.

My specs:
CPU: AMD Phenom II x2 560 (unlocked to x4)
Motherboard: Gigabyte GA-880GM-D2H http://www.gigabyte.com/products/product-page.aspx?pid=3515#ov
RAM: 4GB 1600MHz
Monitor: Toshiba 24HV10E 24" HDTV http://www.toshiba.com.my/product/product_details.jsp?productid=24HV10E

I have a Toshiba 24HV10E 24" HDTV and I wish to use it as my sole monitor using HDMI. My motherboard has an HDMI port with integrated HD 4250 graphics. When I use the VGA monitor, I get the display BUT when using HDMI then I don't. I tried using the VGA monitor and then extended the desktop and that didn't work. The only option that worked was duplicate the desktop. But then it works to the maximum resolution of the VGA monitor of 1280x1024.

After setting duplicate, I thought that now since it's working, I removed the VGA monitor. But then the HDMI doesn't work. But if I connect the VGA along with HDMI then it works. But it only works WHEN windows has loaded. That is it doesn't show the BIOS, POSTing and loading windows screen. It starts with the welcome screen. But the VGA shows everything.

I tried running the HDTV before booting the system. Running the monitor AFTER the system has completed booting. Unpluging and replugging the HDMI cable. But still can't use the HDTV as a sole monitor. I works only alongside with VGA monitor and only in duplicate desktop settings with max 1280x1024 resolution.

Kindly help with a solution.

More about : hdtv sole monitor hdmi

a c 166 U Graphics card
a b C Monitor
April 5, 2012 8:39:28 AM

First of all, HDMI for TV's is a different signal format from a PC monitor.

You need to set this up in the Catalyst Control Panel for HDTV's. The one you want is:

NTSC 1080p60

*Note you can ADD this to you normal resolution window under:
My Digital Flatpanels-> HDTV support

Some things to be aware of:
1) HDMI output of graphics card has no audio support for games, it only decodes certain audio codecs such as Dolby Digital so you can't use your TV speakers to play games.

2) you can NOT change the resolution in games. You're stuck with 1920x1080. If you needed a lower resolution you'd have to change the desktop to use 720p.

3) HDTV's don't work well as computer monitors.
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