Can't connect laptop to external monitor

mike1591

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Jul 10, 2014
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Hello, I'm trying to connect my Toshiba laptop to my external monitor. I have not connected them before. So this will be the first time. I have read that I will need a specific driver to download to enable this feature? But when I look, I don't know which driver to get. I'm not very computer savy, so they way that I'm trying to connect them is with the black cord with a blue top that screws in. My laptop's model is C855D-S5351. And I'm trying to connect it to an HP monitor.

Thanks!
 
Oh, and when I go to Display>>Advanced settings>>Monitor I can't check that box. It's greyed out. And when I go back to the Display option, the only option is for my laptop screen. I have tried fn+f8 but nothing happened. I do also have windows 7 on this laptop. It came with Windows 8, would that be a problem?
 
Just connect the monitor, and then you will be able to alter the display settings. Display Port, DVI, HDMI, and VGA are all just plug and play.

Unless it's a USB monitor. Then install the drivers that came with it on disc, then connecting to it should be as usual.
 


It's currently plugged in. But It's not showing up. And when I bought the laptop, it didn't come with any disks at all
 


Oh, the disks with the monitor? I don't have those anymore, since I bought this monitor years ago. And I'm not sure if it's USB based or standard format
 


There are no bent pins on either side, and the monitor is getting power. The weird thing is, it works just fine on my other computers. It's just this laptop that it doesn't want to work. Maybe it's because I have windows 7 installed instead of Windows 8?
 


I just tried fn+f4 and fn+f5 but that didn't do anything at all
 


No worries. Thank you for trying. While I have you here, I have another question. I have a Dell Dimension 9100 desktop, and when I go to turn it on, it goes to the windows loading screen, and it just stays there loading. I left it on over night and woke up to it still loading. Any ideas? I'm thinking that it's harddrive issues, but not 100% sure
 


It does sound like a hard drive issue.
 


Okay! Thank you for all your help :)
 


When you installed Win 7, did you install the drivers for it? Especially the chipset and video?
If not, do that. Are you using the same cable with the other computers that the monitor does work with?
 


I would not call that a real monitor, it's a display, but the USB connection needs it's own video card running. It's like calling a tablet a monitor.

What you have there is an external USB video card built into the monitor. They are trying to connect the monitor with a blue cord to an HP monitor, not this thing with a USB cable. I've never seen one of these displays in use, but I see why you mentioned it, since you happen to know someone that has it. If you look at it, it has no video inputs, only the USB cord.
 

it's in the first post "so they way that I'm trying to connect them is with the black cord with a blue top that screws in. My laptop's model is C855D-S5351. And I'm trying to connect it to an HP monitor. "


 
Try plugging the cable for external monitor onto your laptop before turning the power of your laptop on. The external display's power has to be switched on also before you turn on your laptop..It's not a fix, but an alternate. Happened to my Asus Aspire 4820G