Problem Using stand alone monitor with laptop computer
I have been using a separate monitor for my laptop because the built in monitor went black. Everything was working fine until this morning. The laptop screen is coming on, but it is dark. I can just barely see my desktop on the screen. The separate monitor says it's in power saving mode or says "input signal out of range". I'm pressing (function - f 9). Any ideas?
Re: Problem Using stand alone monitor with laptop...
It could just be in the power saving mode. if it is its easy to fix. just go to the notebook mobile settings or battery settings and change the screen brightness or mabey you have a screen brightness changer on your keyboard?
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The Samsung SyncMaster P2570hd is a monitor with speakers; it isn't the computer itself. I'll assume that you are dealing with a computer connected to the monitor and not a set-top box. Make sure that Mute is not enabled on the computer. There should be an icon on the lower right hand side of a Windows desktop. If the mute is enabled, it will have a red circle with a diagonal line through it. Left click on the icon to remove the mute (change the volume or click on the mute icon). Test the monitor's speakers by connecting it to another device with known good audio output.
Next how are you connecting the monitor to the computer (VGA, DVI or HDMI)? If you are using VGA or DVI (including DVI to HDMI), you need to connect an audio patch cable (3.5 mm) between the speaker (green port on the back of a sound card) or headphone jack of the computer and the audio input jack of the monitor. The audio input jack is between the DVI and VGA ports. You can test the output of the speaker jack on the computer with regular computer speakers. Plug in the power cord (or USB cable) for powered speakers. If the free-standing speakers work, check the volume setting on the monitor with the +/- buttons to the right of the menu button. Do not press menu first, though. If that doesn't solve the problem, continue using the separate speakers. (Unless the monitor is still under warranty, it usually isn't worth taking apart a monitor to replace the speakers. You may be able find replacement parts online.)
If you are using an HDMI cable, check the output audio setting to see if the HDMI audio is available. For Windows, click on Start > Control Panel > Hardware and Sound (Windows 7). Then click on Manage Audio Devices under Sound. In the Playback tab, check what available audio devices you have. Make the HDMI the default device by right-clicking on it and selecting Make this the default device. (Other versions of Windows will a slightly different route to this panel.) You may need to restart the computer to get the audio signal on the HDMI cable after setting this. Note: not all video cards/computers support HDMI audio. If you don't see HDMI listed in the Playback devices, connect an audio patch cable as with a VGA or DVI cable, described above. Use stand-alone speakers if the monitor's speakers are bad.
I hope this helps.
Cindy Wells (I have had the speakers fail in monitors; <$30 separate speakers are an adequate replacement for those built into a flat panel monitor.)
This is either a bad monitor, a bad video card (if you're using a stand-alone card), or a bad motherboard. Test the monitor by connecting it to another computer. If the monitor works, then it's the video card or MOBO. Use a stand-alone (PCIx/AGP) video card that you are certain works. If this does not work, then the MOBO is not working. I hope this is helpful and best of luck!
First thinkg I'd do is to connect an external monitor to the laptop to see if you can get an image, any image, during booting. If you can't see anything, either using the laptop's screen or external monitor, then you have a hardware failure in the laptop that's probably beyond the abilities of a novice to repair. Get somebody who knows about how to clear the CMOS of the laptop.
Check to see if you have the machine switched out to a stand alone monitor. This is a feature on many lap tops that lets you re-direct the signal out to a larger monitor, or if your monitor fails you can display the computer info on another screen. This feature is engaged by holding down the Fn key and tapping teither the F4, or F6 key on many lap tops. This feature can be toggled by both displaying at the same time or switched to the stand alone or the Lap top.
The other cause is that the machine has malfunctioned usually because of the CPU failure and there is nothing to boot the machine up.
does you cpu have a built in vga or you use a separate card? check at the back of the cpu, if you are using a cpu that has a built in vga and youre using a separate vga card may you have just connected your lcd monitor on the built in in which many cases will not work you need to connect your lcd on the separate vga card, if that is not the case and you head a beeping sound with intervals then there a problem with your vga card now if you use built in video you need to put on a separate vga card agp or pci-e which ever is supported by your motherboard, hope this help
I'm just "guessing" here, but when the updates are installed, you may have to restart the computer. On a laptop, unless you go into the control panel and designate which monitors are installed, it reverts to the built-in monitor and you have to use the Fn and whichever function key controls the monitor assignment. Yes, there should be a way to permanently tell the machine that the external monitor is the primary one. I think (since I don't run Vista here) that you would get into the control panel and the display settings and designate the attached monitor as the primary. I'd be interested to know if this works. Be sure when you go to the display properties that you right-click on the external monitor and choose "attached". Anyway, give that a try.