Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: video mode unuseable upon waking from sleep mode

11 Sep 2016   #1
AndyH W7f

Win 7 Home Premium 64 bit
video mode unuseable upon waking from sleep mode

I've been using this Windows 7 Home system for some years. At first it used the CRT monitor I had for much longer than this system, then a used LCD monitor, now for the last six or eight months a larger used, but seemingly in excellent condition, Dell E228WFP.

My habit has been, for much longer than I've had the Win7 system, to manually put the system in sleep mode during the day when I expect to be away for any extended time. I turn it off if I will definitely be away for hours and turn it off over night.

The problem did not exist until this Dell monitor. I don't recall how soon after getting the monitor it started, probably not very long.

The system always come up working properly when first turned on but sometimes, when I awaken the system, the video is at a much lower resolution. Looking at the Windows Screen resolution, it says generic PNP monitor rather than the Dell. This is an annoyance but easy enough to fix, just click on Detect, and it switches back to the Dell at the higher resolution, the recommended 1680 X 1050, which is enough to suit me.

Starting perhaps six or eight weeks ago it sometimes instead woke up with a message
1: auto detect (analog input)
Cannot display this video mode
optimum resolution 1680 x 1050 60Hz

Sometime the first line instead says
2: Analog Input

The only way to get any video is to restart the system, which always came up correct from boot or reboot, just not from reawaken. If nothing was open when I put it to sleep, I can use the keyboard sequence to Restart. If various programs are open when I put it to sleep, which is often, only a hardware restart works because I can't see the message that ask what to do about the open applications.

This is much more annoying and inconvenient than the original low resolution opening, and possibly a totally different problem. Now, quite recently, it has started sometime coming up when first turned on with the message, and no video. Yesterday I had to restart the system twice to get things working. This doesn't seem like a good trend.

I don't know where to look. Windows obviously can tell what monitor and what resolution but doesn't always do so -- or something is being presented that is a strange video mode that can't be handled.
Is it a faulty monitor (which never misbehaves once it is running properly)?
Is it some Windows setting?
Is there any way to find out what "this video mode" means?
Where to start?

My System SpecsSystem Spec
12 Sep 2016   #2
AndyH W7f

Win 7 Home Premium 64 bit

It occurred to me to check Device Manger, to see if I have any control there. I have been doing everything by right clicking on the desktop and selection Screen resolution. Under Monitors there is only
Generic Non-PnP Monitor
There is no option to change anything.

Perhaps I just didn't read carefully and this is also what it says under Screen resolution when it comes awake at the much lower resolution. I can't produce the condition on demand so I can't check right now. When the Dell is shown there is no other option under Display:.
My System SpecsSystem Spec

 video mode unuseable upon waking from sleep mode

Thread Tools

Similar help and support threads
Thread Forum
Waking up from sleep mode
To whom it may concern: I have win 7 ultimate laptop machine, it is like 10 days, when I put it in sleep mode and I try to wake it up after long hours (e.g 4 or 5 hours), it sometimes shows black screen, sometimes the login display but I can not type my password, sometimes I can type my password...
Performance & Maintenance
BSOD waking up from sleep mode
Usually I get this when waking up from sleep mode. I've gotten BSODs randomly as well, not really doing anything. I've tested my RAM, and torture tested my CPU and GPU and they seem solid. Any ideas?
BSOD Help and Support
BSOD Waking UP From Sleep Mode
Hi, as the title says ive been having repeated problems with Sleep Mode, i have set ACPI Standby State to S3 & there are no overclocking settings enabled, it could be related to my hardrive, i have three with one being an SSD (Samsung 840 Pro 128gb) that has the OS, (Samsung HD103SJ) & (Samsung...
BSOD Help and Support
Sleep mode, why is it waking up?
When I put my computer in Sleep mode, using the start button / shutdow / sleep it "sleeps" for about 10 minutes and wakes up on its own! Could it be programs trying to run in the background that wakse it up; Carbonite Backup or Norton? I can't get the computer to remain in sleep mode! Thanks,...
Performance & Maintenance
Waking from Sleep Mode
My system goes to sleep after 20 minutes just the way I want it. The problem comes from waking it up to perform scheduled tasks. I run a weekly scan using McAfee which doesn't wake up my system, so I have to come up with a method of making sure my machine is awake at the scheduled time. I also...
General Discussion

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 17:25.
Twitter Facebook