Samsung forum

General discussion

Connecting TV box to LCD monitor through DVI or VGA

by fabiokkobayashi / November 29, 2010 9:34 AM PST


I am trying to connect my Vodafone TVbox to my Samsung 2253LW LCD monitor with 1680x1050 resolution through an HDMI cable (TVbox) - DVI (monitor).

The problem is that even showing a fairly good picture, the monitor shows a popup message saying "Not Optimum Mode. Recommended resolution: 1680x1050 60Hz".

I tried setting various image formats in the TVbox (SD 4:3, Wide 16:9, 720p, 1080i) and in all of them the message appears. I can watch TV for just 1 minute, when it becomes an all black screen with the message 'walking' across the screen.

I called to Vodafone support line and they can not help me, because apparently there are only four picture profiles available on the box(576i, 576p, 720p and 1080i).

As the image appears and is quite good, the problem is really the popup message and TV image that is shown for only 1 minute.

Is there a way to overcome this?

If I try to connect the TVbox to the monitor using the VGA port, the problem will be solved? Or it happens in both digital and analog signals?

Note1: When connecting the PC (HDMI) to monitor (DVI) everything is fine.

Note2: The TVbox is a Cisco CIS5000

Thanks in advance!


Discussion is locked
You are posting a reply to: Connecting TV box to LCD monitor through DVI or VGA
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: Connecting TV box to LCD monitor through DVI or VGA
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
Connecting TV box to LCD monitor through DVI or VGA
by Samsung_Monitor_PC Samsung staff / December 6, 2010 3:27 AM PST


I am sorry to hear that you are having difficulties with your Samsung 2253LW LCD monitor.

To better address your issue and to walk you through a possible solution, please contact Samsung Customer Support toll-free at 1-800-726-7864, or visit for Live Chat, e-mail, and Twitter support options.


Collapse -
Not your setup but worth noting.
by R. Proffitt Forum moderator / December 6, 2010 3:31 AM PST

Another cable system only supported HDMI and component connections. ANYTHING else is not supported. The problem with DVI is we may not get HDCP support and that's a problem.

Next time, stick to HDMI displays to avoid this issue.

Popular Forums
Computer Help 51,912 discussions
Computer Newbies 10,498 discussions
Laptops 20,411 discussions
Security 30,882 discussions
TVs & Home Theaters 21,253 discussions
Windows 10 1,672 discussions
Phones 16,494 discussions
Windows 7 7,855 discussions
Networking & Wireless 15,504 discussions


iPhone 8: Everything we know so far

This is all the iPhone 8 reports and rumors in one place. From a 5.8-inch OLED display, reports of wireless charging and even a 3D scanner for facial recognition, it's all here.