Monitor doesn't detect that computer woke up.

So yeah, when I wake my computer up out of sleep mode, sometimes the monitor will detect that it needs to wake up
However, most of the time, I have to unplug the DVI cable and plug it back in. When I do so, I can hear the Windows
noise indicator that lets me know that something was disconnected and something was connected.
Anyone experience this issue before? Any suggestions?


ASRock Z77 Extreme4
Sapphire Radeon 7870
Running on 64-bit


I have updated drivers for my video card, this problem seemed to only happen in Win8/8.1 I didn't have the problem in Win7

I had the company replace my video card, but I still seem to have this problem.
I tried using another PCI-E port on the motherboard and the problem was not resolved.
When I plug my monitor into the integraded DVI port of the motherboard, I don't seem to have this problem.

I just can't figure out what is actually wrong with it.

Most of the time, it is the Video driver causing the issue. Uninstall the driver for the Video Display, and then reboot and let windows install the default driver. Also check the Bios to make sure that it is up to date. Windows 8.x has had a lot of random issues, with most being Video Display issues.

I would suggest not allowing the display to be placed into sleep, just set to blank the screen. If you are leaving the machine on for long periods, just turn off the monitor. When you get back to the computer, power it back on with the power button.

How do I let windows install the default driver?

thelittlelim said:

How do I let windows install the default driver?

Click to expand...

just reboot windows after you uninstall the driver

uninstalled driver, rebooted, not sure if windows installed any other driver, but I'm still having the same problem.

did you get the 64bit win8.1 driver from the download section here, for you video card and install it .
http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1160&lid=1&pid=1487#

So now I'm confused, I was told to uninstall it, and now you're suggesting I install it?

thelittlelim said:

So now I'm confused, I was told to uninstall it, and now you're suggesting I install it?

Click to expand...

yeah, this process is intended to fix[maybe]something in the original driver install ,by process of elimination

I've done a clean install of windows and I'm still having problems with this.

ok,when you done the clean install did you go the manufacture web site to get the latest device drivers for the computer ,or are you just using the ones windows uses when it installs

I went to the manufacturer's website.

You say the problem does not exist when connecting monitor to the integrated/onboard port. Maybe the wake-up signal is only going to that port . Is it recommended or possible to disable the integrated adapter in bios so you will only see/use the addon adapter?? Just a thought..

sorry, as it works with integrated video I have nothing else to add ,I'm at the end of my knowledge on such problems

I can try to disable the integrated port, I'd have to find out how though

No work Looks like I may just have to live with this.

check the bios to disable the integrated as suggested by owenspal in post #12