Question about Computers & Internet
Dvi port of l22w-7sd gives bad edid, the only problem with it is that name of monitor stored in edid has one character wrong (last D) and because of that checksum is wrong.. and cause monitor not being detected by linux (dmesg shows bad edid checksum) and windows and display doesn't get activated without doing some kind of hack for ignoring/faking edid. is there a way write correct edid back to monitor. I tried powerstrip and edid-rw on linxu.. but it seem eprom is read only.. any way to get monitor to service mode/make eprom rw?
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Posted on Jan 02, 2017
SOURCE: Primary display issue
Try going to Windows Safe Mode. You do this by pressing the F8 key repeatedly exactly after you hear your computer beep when it is rebooting. This should bring you to a screen that will have 3 Safe Modes listed, choose just plain Safe Mode by using your arrow keys to highlight Safe Mode and press enter. Once in Safe Mode, a box will come up asking you if you intended to enter Safe Mode, click Yes. You should now see your desktop, however it will look larger, and with less colors. This is normal.
If this mode did not allow you to get into windows, then reboot, press F8 like before and select Enable VGA Mode instead.
Now that you hopefully have a desktop, try this link which will take you to a video that will walk you through the process of setting up your DualView monitors. Also, note that there are some check boxes that allow you to select which monitor you want to be the primary.
I realize this video is specific Windows 2000, but the process is the same for Windows XP.
Hope this helps and Good luck!
Posted on Dec 23, 2007
Thank you for providing your configuration details.
You have failed to specify wheather or not your LCD Display is under Warrenty.
Perhaps these simple trouble shooting procedures will get the job done.
1. use the DVI to VGA adaptor that came with your card
Plug in a regular CRT monitor to the Primary Display Output Port using the DVI to VGA adaptor
( either port can be designated as the primary by you )
I like to use the Port nearest to the motherboard as the Primary
2. plug in the your LCD monitor on Secondary Display port using your DVI cable
At this point you should be able to see your desktop on the Primary CRT Display
3. Go to the display properties and use the Nvidia Dual Display Setup Wizard
set both desktops to CLONED at a resolution of 1024x768 and set the refresh to 60Hz
which is default for most LCD displays , some have higher refresh rates , consult your user manuel
If the display resolution and refresh are set incorrectly for your CRT or LCD you will see
Signal Out of Range ( if the display has the ability to display that error message )
At this stage both displays should be showing a Windows Desktop
If you now see your desktop on both displays , you can now put the LCD on the Primary Port
No Signal Detected ( this means the display device is not receiving a signal )
If your LCD display is still displaying the error message
"No Signal Detected" after performing the trouble shooting proceedures
You may need to read the user manuel about how to enable DVI signal input.
If you are certan you have done everything correctly but still see only "No Signal Detected"
Your LCD Display may need replacement
Loch Hime :-)
Posted on Sep 14, 2008
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