|If your monitor model has both a DVI port and a "VGA" (Analog; d-sub, 15 pin holes) port...... |
- you probably can use one or the other of them to connect to video output from your computer(s), NOT both of them at the same time .
- in most, if not all, cases the DVI port on the monitor has only the pin holes for DVI-D use - digital video only - that applies to your particular monitor model - you cannot physically connect to that with a DVI-I plug on a video cable, or a standard DVI-I to VGA gender adapter, and you cannot get video from a VGA connection to that port.
ALL monitors display in a default VGA mode while booting the computer and in the bios Setup BEFORE the operating system loads.
You should ALWAYS have video while booting BEFORE the operating system loads if there's nothing wrong with the output of the video adapter you have the monitor connected to. That does not require any software on the hard drive and should work fine even when there is no hard drive installed.
- However, when you have a monitor that can be used with either an Analog or Digital signal, you MAY need to CHANGE THE INPUT SIGNAL TYPE to Analog or Digital in the settings on the monitor itself - in the OSD (On Screen Display) - to the other mode if the correct mode is NOT automatically selected by default.
- if you're using a HDMI port connection on a video adapter you may NOT get any video BEFORE the operating system loads !
See Side notes below.
"Are you using integrated graphics?"
If your computer has more than one video adapter, if you have the monitor connected to a port for an onboard (built into the mboard) video adapter, usually that port will NOT produce video when there is a video card installed in a PCI-E X16 slot - only the video card installed in a slot (that has (a) port(s) in a slot space on the back of the case) will produce video - UNLESS your mboard's main chipset supports Hybrid video in which case the onboard video still works and the video card installed in the slot may NOT produce video by default until you change at least one setting in the bios Setup. If you don't know whether your mboard's main chipset supports Hybrid video - both the onboard video and the video on a card installed in a slot working at the same time if the video chipset on the card is supported by that feature - provide the make and model of your brand name system, or if you have a generic desktop system, the make and model of the mboard.)
Shows a DVI port and a VGA (d-sub, 15 pin holes) port. Some models may have only one or the other port.
I suspect your model DOES have both types of ports.
If there is something wrong with the input signal, a message appears on the screen or the screen goes blank although the power led is still on. The message may indicate that the monitor is out of sync range or that you need to check the signal cable
(Picture - example of a message on the screen.
Not Optimum mode.
Recommended mode **** x **** ** Hz
Analog or Digital in a box below that.)
Note - for models with Analog interface only (only a VGA port), Analog/Digital is not shown in the warning message OSD (On Screen Display).
I'm guessing that....
If the box below that message shows the opposite of the way you have video output connected to the monitor, you probably MUST go into the settings in the OSD on the monitor itself and change the input setting to that type.
NOTE that your monitor supports both of either a 50 Hz or 60 Hz AC power connection.
That's whatever the AC power uses where you're using the monitor. If that is not selected correctly automatically by default, you need to change that setting in the OSD.
Similar info in that.
See Troubleshooting - warning messages
"Are you using integrated graphics?"
All DVI ports for/on video adapters have the pin holes for a DVI-I connection, but that doesn't necessarily indicate the port is wired up to the video adapter to support DVI-I use.
If the DVI port is on a video card installed in a mboard slot, I've never come across and I've never heard of a video card's DVI port NOT supporting DVI-I use.
If your mboard has onboard video (a video adapter built into the mboard) that has a DVI port. in some cases, that DVI port ONLY supports a DVI-D connection (digital video ONLY).
If you install a standard DVI (DVI-I; male) to VGA (female) gender adapter in that port, you CANNOT get VGA video from that port.
"Are you using an HDMI cable?"
If you're using a HDMI port output on a video adapter and converting that to a DVI connection (all HDMI port outputs can be converted to a DVI-D output but NOT a DVI-I output) , we have seen that with at least SOME Samsung computer monitor models, and at least SOME Samsung TV models that have monitor input ports, that you will NOT get any video BEFORE the operating system loads in that case. There is NO workaround for that ! You have to use either a VGA or a DVI to DVI connection !
The Samsung 2233SW monitor has a "native" or "optimal" resolution of 1920x1080.
The two numbers are for the width x height of the display.
It has a 16:9 aspect ratio - the ratio of the width to the height of the display expressed in whole numbers = 1.777 (to 1) when you divide the first number by the second number.
In Windows, if you choose any other resolution the display will NOT look as good
the most noticable thing in common being the text on the scrren will NOT be as clear.
If you choose any other resolution....
Turn on Clear Type in Windows XP or Vista Windows 7 - makes type/fonts on LCD screens look clearer.
If you DO choose another resolution, select one that has the same 16:9 aspect ratio, if you can, for a display that is proportioned correctly (not stretched horizontally or vertically) = 1.777 (to 1) when you divide the first number by the second number.
p = progressive scan
That's different from 1080i -
i = interlaced - the odd horizontal lines for a frame are displayed, then the even horizontal lines for a frame are displayed, alternately.