Unsolved
This post is more than 5 years old
9 Posts
0
787029
September 8th, 2013 19:00
Monitor Flashing Off and On
Let me start out by admitting that I am a novice when it comes to working on computers. So, please humor me if I sound stupid. I have a Dell XPS 8100 with Windows 7. Graphics is ATI Radeon HD 5670. The system has been working pretty much OK for the past few weeks. Suddenly the monitor started going black for about two seconds, sounding a "device disconnect", then would come back on for a short time. Then it would repeat over and over and faster and faster until it ended up with a stable screen at the lowest resolution. If I tried to reset the resolution, it would start all over again and end up at low res. If I let the computer stay off overnight, it might stay stable for several hours after rebooting and then start flashing off and on later. Today I put my 24 inch Samsung P2450H monitor from my Dell on my other computer, and it has been perfect all day. I switched my small monitor to the Dell and it has stayed on all day as well, but it has a lower resolution max on it. I had reloaded the drivers for both the monitor and the graphics card with no improvement. I have a feeling the video card is going out, but I don't know what else to do to check it. I have an inclination to defenestrate my Dell, but will wait for some good advice.
DELL-Munawar P
748 Posts
0
September 9th, 2013 01:00
Hi Will The Edge,
We apologize for the inconvenience caused and appreciate that you’ve tried a couple of steps to resolve the issue.
Please try performing a couple of more steps mentioned below to fix this issue.
http://dell.to/1dFtXxL
http://dell.to/1dFtXxL
http://bit.ly/18MmAjo
Please complete these steps and let us know your findings.
Will The Edge
9 Posts
0
September 11th, 2013 19:00
Thank you for the suggestions. I have stress tested the video card and done the pc analysis. So far nothing has proven to be out of specs. The drivers are all updated. The monitor still will flash off and on as before whenever it chooses to, then go to low resolution. Looks like some other poor soul has a similar problem in a post for today (9/11). Oh well.....
DELL-Munawar P
748 Posts
0
September 12th, 2013 09:00
Hi Will The Edge,
Thank you for your response and I appreciate that you’ve done a lot of troubleshooting steps to fix the issue.
The issue might be with the Graphics card, we can try restoring the computer to factory defaults suspecting issue with Software.
If in case the issue does not fix we can consider replacing the Graphic card for the same.
Please click on the below link to perform a Factory reset.
http://dell.to/1g5d8cv
If the above step failed to fix the issue after the Factory Restore, please provide us the Service tag of your computer on a private message
by clicking on my username selecting Private Message option provide your service tag and contact information (as mentioned below) so
that I may access your system records.
System Service Tag No:
Registered System Owner's Name:
Shipping address:
Telephone number/s:
Email address:
Reply us with your findings.
Will The Edge
9 Posts
0
September 13th, 2013 19:00
Actually, I had already done a restore to a point long before the trouble started. Now I have put my 24 inch monitor on my other computer (HP) and it is working perfectly. I put the little Acer monitor from my other computer on this problem computer and it is working fine as well. The interesting thing is that the end low resolution on the big monitor happens to be the native resolution (1024x768) on the little monitor. Hmmm. For some reason it appears that the higher resolution can't be stabilized. Also, I tried disabling the video card and using what was on the motherboard. It wouldn't support the highest resolution, but it too was stable for the big monitor. {Curiously, the little monitor wouldn't work off the motherboard at all.} I'm thinking the next step is a new video card and pray to the computer gods. Thank you for your help, Munawar P.
DELL-Munawar P
748 Posts
0
September 15th, 2013 08:00
Hi Will The Edge,
Thank you for your response, and we appreciate that you were able to isolate the issue and after you’ve change the graphic / video card
do let us know and we’ll be glad to assist.
zeusie
1 Message
1
January 22nd, 2016 12:00
I just purchased a used Dell Lcd in 2016 & when I hooked it up it flashed the login and went black. Finally I hit power off,then on, then far left button fast while screen up, then fast minus to get down to reset. Had to be really fast, so powered on & off till I got it minused to reset, then pushed the reset (far left) again and it auto adjusted. It works great. Restarted it & it auto adjusted just fine. I almost returned it but decided since it showed a good picture for a second or two, it was most likely the monitor settings on the front of the monitor, and in this case it was. Same problem as many stated, but not a tower problem. Hope it helps.