Solved monitor keeps flashing on and off

H/P 5460
November 21, 2006 at 14:26:57
Specs: windows XP home sp2, 512
Upon start-up my monitor starts flashing/turning on and off it does this until i run a virus scan (norton) when near completion the monitor starts working correctly virus software has been updated but when done scanning says no spyware or virus's were found, i removed cover and blew out dust from video card and mother board all fans are clean and operating, I don't have another monitor to test with, can this be a virus that sliped past the scans and firewall, or could the video card be acting up.

See More: monitor keeps flashing on and off

Report •


✔ Best Answer
November 26, 2006 at 16:28:05
"I ran H/P tests and they say the monitor, video card are both working correctly.
Could it be the video card failing? is it the same as the graphics card?"

The HP tests said it was okay didn't they? It's the same thing as the graphics card in your case - the name for it in Device Manager is the Display Adapter.
Your symptoms
- do not necessarily indicate a problem with the display adapter or the monitor.
- are extremely unlikely to be caused by the video drivers, or by a virus or other malware. I have seen some video drivers that cause the display to blink to black while booting, but not once the desktop loads.

You could rule out your monitor altogether by trying it on another computer!

What I think is most likely is
- you have reloaded Windows fron scratch since the last time the monitor worked properly, but you have not loaded the drivers for the main mboard chipset yet. That can easily cause problems because in that case Windows does not have the proper information about the mboard chipset - either the onboard display adapter is not recognized properly if you are using it, AND/OR - whether you use the onboard display adapter or a card in a slot, Windows doesn't have the proper info about the ACPI/APM hardware support on the mboard, which may cause strange problems such as going into Standby randomly, or possibly blinking video.
- AND/OR - you have an LCD monitor and your monitor is using Plug and Play Monitor in Display - Settings. The problem with that is the Plug and Play Monitor driver was written for CRT monitors, and LCD monitors often can't use some of the settings - either there is no display at all, or the display setting doesn't work properly. The cure is to either never use the settings provided by Plug and Play Monitor in combo with your video drivers that don't get along with your LCD monitor, or, the best solution, you load the proper drivers for your LCD monitor model - in that case Windows by default will not show you any settings available in combo with the video drivers that will not work properly with your LCD monitor.
.....

HP a250n desktop

HP Pavilion a250n Desktop PC - all support:
http://h10025.www1.hp.com/ewfrf/wc/...

HP Pavilion a250n Desktop PC - Product Specifications
http://h10025.www1.hp.com/ewfrf/wc/...

Chipset: 865G (Intel)

If you have not loaded the main chipset drivers since the last time Windows Setup was run from scratch, get at least the INF update utility from here:
http://downloadfinder.intel.com/scr...

get
1. The INF Update Utility

If Windows Setup was run from scratch, you may also need these:

5. Graphics Driver if you are using the onboard video
11. RAID/ACHI Software if you are using the SATA controller.
You DO NOT have to use RAID, but the drivers for the SATA controller are in this.
(second page)

Your mboard may have come with a floppy that has the same stuff as this on it.

22. Floppy Configuration Utility - if you need a floppy with both SATA drivers and the minimal support to use the Intel Matrix Storage Manager.
"Creates floppy disk for 32-bit OS with IntelĀ® Matrix Storage Manager 5.5.0.1035 files - used to preinstall RAID driver (F6 during Windows* setup)"

.......

Other stuff:

Motherboard manufacturer: ASUS

HP and Compaq Desktop PCs - Motherboard Specifications, P4SD-LA (Stingray):
http://h10025.www1.hp.com/ewfrf/wc/...

Manufacturer's name - ASUS P4SD-LA

If you want more info about the mboard, look on the Asus web sites - they may have a Retail version of the same model (with an Asus bios version).

Other Downloads you may need, whether or not Windows Setup was run from scratch:
http://h10025.www1.hp.com/ewfrf/wc/...

***********************************************************************




#1
November 21, 2006 at 16:51:40
What is your actual model?
"HP 5460" can be a desktop or laptop, though it sounds like you're talking about a desktop.

Try booting in Safe mode.
Press F8 repeatedly while booting - don't hold it down - a menu should pop up - choose Enable VGA mode.
If that allows the monitor to display normally, all sorts of things could be wrong in your normal configuration.


Report •

#2
November 23, 2006 at 13:11:55
Sorry I was at work while asking question, the proper model is HP a250n desktop. For some reason all is runing correctly today. I will try the safe mode if it acts up again.

Report •

#3
November 26, 2006 at 10:28:08
Ok enabled VGA mode and still had flashing on and off (green light on monitor and screen go on and off)monitor the first time I tried, restarted again in VGA computer ran fine until it went to sleep then upon awaking the monitor went black but was still powered on (green light on monitor lite) did hard shut down tried resarting in safe mode had same thing monitor turning on and off, ran virus scan in safe mode nothing found monitor then stays on,
next I will try pluging monitor into laptop to test it when H/P a250n starts flashing.
I ran H/P tests and they say the monitor, video card are both working correctly.
Could it be the video card failing? is it the same as the graphics card? I've changed hard drives, dvd drives, and card readers before but never a video card/graphics card.
By the way the computer is running pentum 4 2.6 GHz 512 SDRAM, (replaced 160 GB hard drive, IO/Magic dvd burner instead of failed H/p OEM parts) these were all done well befor the monitor flashing problem started.


Report •

Related Solutions

#4
November 26, 2006 at 16:28:05
✔ Best Answer
"I ran H/P tests and they say the monitor, video card are both working correctly.
Could it be the video card failing? is it the same as the graphics card?"

The HP tests said it was okay didn't they? It's the same thing as the graphics card in your case - the name for it in Device Manager is the Display Adapter.
Your symptoms
- do not necessarily indicate a problem with the display adapter or the monitor.
- are extremely unlikely to be caused by the video drivers, or by a virus or other malware. I have seen some video drivers that cause the display to blink to black while booting, but not once the desktop loads.

You could rule out your monitor altogether by trying it on another computer!

What I think is most likely is
- you have reloaded Windows fron scratch since the last time the monitor worked properly, but you have not loaded the drivers for the main mboard chipset yet. That can easily cause problems because in that case Windows does not have the proper information about the mboard chipset - either the onboard display adapter is not recognized properly if you are using it, AND/OR - whether you use the onboard display adapter or a card in a slot, Windows doesn't have the proper info about the ACPI/APM hardware support on the mboard, which may cause strange problems such as going into Standby randomly, or possibly blinking video.
- AND/OR - you have an LCD monitor and your monitor is using Plug and Play Monitor in Display - Settings. The problem with that is the Plug and Play Monitor driver was written for CRT monitors, and LCD monitors often can't use some of the settings - either there is no display at all, or the display setting doesn't work properly. The cure is to either never use the settings provided by Plug and Play Monitor in combo with your video drivers that don't get along with your LCD monitor, or, the best solution, you load the proper drivers for your LCD monitor model - in that case Windows by default will not show you any settings available in combo with the video drivers that will not work properly with your LCD monitor.
.....

HP a250n desktop

HP Pavilion a250n Desktop PC - all support:
http://h10025.www1.hp.com/ewfrf/wc/...

HP Pavilion a250n Desktop PC - Product Specifications
http://h10025.www1.hp.com/ewfrf/wc/...

Chipset: 865G (Intel)

If you have not loaded the main chipset drivers since the last time Windows Setup was run from scratch, get at least the INF update utility from here:
http://downloadfinder.intel.com/scr...

get
1. The INF Update Utility

If Windows Setup was run from scratch, you may also need these:

5. Graphics Driver if you are using the onboard video
11. RAID/ACHI Software if you are using the SATA controller.
You DO NOT have to use RAID, but the drivers for the SATA controller are in this.
(second page)

Your mboard may have come with a floppy that has the same stuff as this on it.

22. Floppy Configuration Utility - if you need a floppy with both SATA drivers and the minimal support to use the Intel Matrix Storage Manager.
"Creates floppy disk for 32-bit OS with IntelĀ® Matrix Storage Manager 5.5.0.1035 files - used to preinstall RAID driver (F6 during Windows* setup)"

.......

Other stuff:

Motherboard manufacturer: ASUS

HP and Compaq Desktop PCs - Motherboard Specifications, P4SD-LA (Stingray):
http://h10025.www1.hp.com/ewfrf/wc/...

Manufacturer's name - ASUS P4SD-LA

If you want more info about the mboard, look on the Asus web sites - they may have a Retail version of the same model (with an Asus bios version).

Other Downloads you may need, whether or not Windows Setup was run from scratch:
http://h10025.www1.hp.com/ewfrf/wc/...

***********************************************************************



Report •


Ask Question