BenQ G2255a User Manual

							  11   How to assemble your monitor hardware
2. Connect the video cable 
 Do not use both DVI-D cable and D-Sub cable on the same 
PC. The only case in which both cables can be used is if they 
are connected to two different PCs with appropriate video 
systems. (Not available for analog-only models).
To Connect the D-Sub Cable
Connect the plug of the D-Sub cable (at the end 
without the ferrite filter) to the monitor video socket. 
Connect the other end of the cable (at the end with the 
ferrite filter) to the computer video socket.
Tighten all finger screws to prevent the plugs from 
accidently falling out during use.
To Connect the DVI-D Cable
Connect the plug of the DVI-D cable (at the end without 
the ferrite filter) to the monitor video socket. Connect 
the other end of the cable (at the end with the ferrite 
filter) to the computer video socket.
Tighten all finger screws to prevent the plugs from 
accidently falling out during use.
To Connect the HDMI Cable
Connect the plug of the HDMI cable to one of the two 
HDMI ports on the monitor. Connect the other end of 
the cable to the HDMI port of a digital output device.
 If there is more than one video transmission method available 
to you, you might want to take the picture quality of each 
video cable into consideration before making the connection.
- Better quality: HDMI / DVI-D
- Good quality: D-Sub
 The video cables included in your package and the socket 
illustrations on the right may vary depending on the product 
supplied for your region.
3. Connect the audio cable (for models with 
speakers).
Connect the audio cable between the socket on the 
rear of the monitor (Line In) and your computer audio 
outlet. 
Either
Or
Or
 
						

							12  How to assemble your monitor hardware  
You may connect headphones to the headphone jack 
found next to the Line In jack of the monitor.
 Location of the Line In and headphone jacks may vary by 
model. Check Input and output ports on page 8 for details.
4. Connect the power cable to the monitor.
Plug one end of the power cord into the socket labelled 
 on the rear of the monitor. Do not connect the 
other end to a power outlet just yet.
5. Connect-to and turn-on the power.
Plug the other end of the power cord into a power 
outlet and turn it on.
 Picture may differ from product supplied for your region.
Turn on the monitor by pressing the power button on 
the right of the monitor. 
Turn on the computer too, and follow the instructions 
in Getting the most from your BenQ monitor on page 
16 to install the monitor software.
 To extend the service life of the product, we recommend that 
you use your computers power management function.
 
						

							  13   How to assemble your monitor hardware
How to detach the base
1. Prepare the monitor and area.
Turn off the monitor and the power before unplugging 
the power cable. Turn off the computer before 
unplugging the monitor signal cable.
Protect the monitor and screen by clearing a flat open 
area on your desk and placing a soft item like a towel on 
the desk for padding, before laying the screen face down 
on a flat clean padded surface.
 Please be careful to prevent damage to the monitor. Placing 
the screen surface on an object like a stapler or a mouse will 
crack the glass or damage the LCD substrate voiding your 
warranty. Sliding or scraping the monitor around on your 
desk will scratch or damage the monitor surround and 
controls. 
2. Push the locking clips upward to detach the 
monitor base from the monitor stand arm.
While pushing the locking clips upward, detach the 
stand base from the stand arm.
3. Remove the monitor stand.
Insert a pointed object such as a screwdriver to the 
hole above the monitor stand arm, and then push the 
screwdriver against the release button inside the hole. 
Then pull the monitor stand backward away from the 
monitor.
1
2
1
2
 
						

							14  How to assemble your monitor hardware  
 If the screen size is 27 inches, follow the illustration on the 
right to detach the monitor base. Release the screw that 
fixes the stand to the monitor. Use of a flat-head screwdriver 
is recommended. Then pull the monitor stand backward 
away from the monitor.
1
212
3
1
2
 
						

							  15   How to assemble your monitor hardware
Using the monitor wall mounting kit
The back of your LCD monitor has a VESA standard mount with 100mm pattern, allowing the 
installation of a wall mount bracket. Before starting to install a monitor wall mounting kit, 
please read the precautions carefully.
Precautions:
• Install your monitor and monitor mounting kit on a wall with flat surface.
• Ensure that the wall material is stable to support the weight of the monitor.
• Turn off the monitor and the power before disconnecting the cables from the LCD monitor.
1. Remove the monitor base.
Lay the screen face down on a clean and well-padded 
surface. 
Detach the monitor base as instructed in How to 
detach the base on page 13.
 If the screen size is 27 inches, follow the illustration on the 
right to detach the monitor stand.
 In case you intend to use your monitor on the stand in the 
future, please keep the monitor base, monitor stand, and 
screws somewhere safe for future use.
2. Follow the instruction manuals of the wall 
mount bracket you purchased to complete 
the installation.
1
2
1
2
 
						

							16  Getting the most from your BenQ monitor  
Getting the most from your BenQ monitor
To gain the most benefit from your new BenQ LCD monitor, you should install the custom 
BenQ LCD Monitor driver software as provided on the BenQ LCD Monitor CD-ROM.
The circumstances under which you connect and install your BenQ LCD Monitor will 
determine which process you need to follow to successfully install the BenQ LCD Monitor 
driver software. These circumstances relate to which version of Microsoft Windows you are 
using, and whether you are connecting the monitor and installing the software onto a new 
computer (without existing monitor driver software), or whether you are upgrading an existing 
installation (which already has existing monitor driver software) with a newer monitor. 
In either case however, the very next time you turn on your computer (after connecting the 
monitor to your computer), Windows will automatically recognize the new (or different) 
hardware, and will launch its 
Found New Hardware wizard. 
Follow the wizard instructions until it asks you to select a monitor model. At that point, click 
the 
Have Disk button, insert the BenQ LCD Monitor CD-ROM and select the appropriate 
monitor model. Further details and step-by-step instructions for either an automatic (new) or 
upgrade (existing) installation, see:
• How to install the monitor on a new computer on page 17.
• How to upgrade the monitor on an existing computer on page 19.
• If you require a User Name and Password to login to your Windows computer, you must be logged on as an 
Administrator or as a member of the Administrators group in order to install the monitor driver software. 
Furthermore, if your computer is connected to a network which has security access requirements, network 
policy settings may prevent you from installing software on your computer.
• To check the name of the purchased model, refer to the specification label on the back of the monitor.
 
						

							  17   Getting the most from your BenQ monitor
How to install the monitor on a new computer
This instruction details the procedure for selecting and installing the BenQ LCD Monitor driver 
software on a new computer which has never had a monitor driver installed before. This 
instruction is only suitable for a computer which has never been used before, and for which the 
BenQ LCD Monitor is the first ever monitor to be connected to it.
1.  Follow the instructions in
 How to assemble your monitor hardware on page 9. 
When Windows starts, it will automatically detect the new monitor and launch the Found New 
Hardware Wizard. Follow the prompts until it displays the option to Install Hardware Device 
Drivers.
2.  Insert the BenQ LCD Monitor CD-ROM into a CD drive on the computer.
3.  Check 
Search for a suitable driver for my device option, and click Next.
4.  Check the option for CD-ROM drives (uncheck all others) and click 
Next.
5.  Look to confirm that the wizard has selected the correct name of your monitor and click 
Next.
6.  Click 
Finish.
7.  Restart the computer.
If you are adding the BenQ LCD Monitor to an existing computer that has already had another monitor 
connected to it (and has monitor driver software installed), you should not be following these instructions. You 
should instead be following the instructions for How to upgrade the monitor on an existing computer.
To find the suitable driver files for the purchased model, refer to the following table.
Driver filesSuitable models
GL950A GL950A / GL950AM
GL950 GL950 / GL950M
GL955 GL955A
G950A G950A / G950AM
GL951A GL951A / GL951AM
G951A G951A
G955A G955A
GL2055 GL2055 / GL2055M / GL2055A
GL2250 GL2250 / GL2250M / GL2250TM
GL2250H GL2250HM
G2250 G2250
G2250H G2250HM
GL2251 GL2251M / GL2251TM
G2251 G2251M / G2251TM
G2255A G2255A
G2255 G2255
 
						

							18  Getting the most from your BenQ monitor  
GL2450 GL2450 / GL2450M
GL2450H GL2450HM / GL2450HT
G2450 G2450
G2450H G2450HM
GL2750H GL2750HM
G2750 G2750
G2750H G2750HM
Driver filesSuitable models
 
						

							  19   Getting the most from your BenQ monitor
How to upgrade the monitor on an existing computer
This instruction details the procedure for manually updating the existing monitor driver 
software on your Microsoft Windows computer. It is currently tested as compatible for 
Windows 8, Windows 7, and Windows Vista Operating System (OS). 
Installing monitor driver software involves selecting an appropriate information file (.inf) on the 
BenQ LCD Monitor CD-ROM for the particular model monitor you have connected, and 
letting Windows install the corresponding driver files from the CD. You need only steer it in 
the right direction. Windows has an Upgrade Device Driver Wizard to automate the task and 
guide you through the file selection and installation process. 
See:
• How to install on Windows 8 system (selected models only) on page 20
• How to install on Windows 7 system on page 21.
• How to install on Windows Vista systems on page 22.
The BenQ LCD Monitor driver for your model may well function perfectly with other versions of Windows, 
however, as at the time of writing, BenQ has done no testing of this driver on other versions of Windows and 
cannot guarantee its operation on those systems.
 
						

							20  Getting the most from your BenQ monitor  
How to install on Windows 8 system (selected models only)
1.  Open Display Properties.
Move the cursor to the lower-right of the screen or press the Windows + C buttons on the 
keyboard to bring up the Charm bar. Go to Settings, Control Panel, Devices and Printers 
and right-click the name of your monitor from the menu.
Alternatively, right-click the desktop and select Personalize, Display, Devices and Printers, 
and right-click the name of your monitor from the menu.
2.  Select Properties from the menu.
3.  Click the 
Hardware tab.
4.  Click 
Generic PnP Monitor, and then the Properties button.
5.  Click the 
Driver tab and the Update Driver button.
6.  Insert the BenQ LCD Monitor CD-ROM into a CD drive on the computer.
7.  In the 
Update Driver Software window, select the option Browse my computer for 
driver software
.
8.  Click 
Browse and navigate to the following directory: d:\BenQ_LCD\Driver (where d is 
the drive letter designator for the CD-ROM drive).
9.  Select the correct folder name of your monitor from provided driver list, and click 
Next.
This will copy and install the appropriate monitor driver files to your computer.
10. Click Close.
You may be prompted to restart your computer after the driver update is complete.
The drive letter for your CD drive may differ from the example above depending upon your system - it may be 
D: or E: or F: etc.