Ahh, finally someone else that has the same issues. We have 170 Optiplex 960 SFF PC's in our building connected to 2208WFP monitors and 2210t monitors (about 150 2208's and 20 2210's). Each PC has an ATI Radeon 3470 card with Dual Display Port. From our monitor we have a DVI cable going into a display port adapter which plugs into the card. We have had the PC's since Late January, early Feb 2009. I have been documenting each and everytime is happens since late April and have had about 60 people with the issue, and within that, about 25 people that have had it happen several times. PC's all have Win XP SP3 on it. They all use various screen resolutions. (i usually get about 3 help desk calls a week on average for these issues)
- display flashes on and off again when moving mouse or switching between programs (same as what happend with jruz). Usually goes black for about 3-4 seconds and comes back and the input signal appears in the top left corner - this will keep happening until we reboot the PC or unplug the adapter and plug it back in.
- display does not come back unless I shut down the PC and turn back on
What i have done to troubleshoot
- Disabled C States control in BIOS
- rebooted PC, or removing the Display port adapter out of the card and putting it back in are TEMP fixes
- tried replacing the Display port card with a DVI card in a computer it was happening to alot - same issues happened
- replaced a bunch of 2208 monitors with the 2210's - didnt happen for a while, but then the issue started popping up again (thought the issue was the 2208 monitors)
- Updated video drivers
- Updated BIOS
- My latest one is removing the ATI card and using just the on board VGA card - My bet is that the problem will not happen again after this...
- I have actually coordinated with Dell to send 2 problematic desktops/monitors back to them to evaluate in their labs.
All in all this has been a nightmare, as these are brand new systems, which doesnt bode well for Dell since people buy personal computers and think about these issues when buying a Dell (I have been told this by several users). Needless to say, I have always been a Dell supporter and have confidence they will fix this.
Anybody have any other ideas?
A little update:
- on October 24 I installed the ATI driver version 9.10. Since then, I had only 1 lock-up of the graphics card (November 1). After the last lock-up, I changed a power setting in Vista:
PCI Express > Link state power management > set to OFF
Since then, there have been no more lock-ups of the Radeon 3470. 13 days without a lock-up is a new record. Maybe this power save setting is the ultimate solution???
EDIT: a couple of hours after I wrote the above, the graphics card locked up again!! But now, I have discovered a pattern:
- The graphics card locking up always occurs if - while the PC is in sleep mode - I switch off the monitor using the power button. Then the subsequent wake operation fails to wake up the graphics card, even if the monitor has been switched back on before I wake the PC. If I leave the monitor in low power mode (power button light on my Dell U2410 is slowly blinking), then the PC + monitor wake up OK. This seems to be reproducible...
- The reason why the lock-ups hadn't occurred in 13 days, was because I hadn't touched the power button of the monitor in 13 days.
....but we shouldnt have to be doing all this troubleshooting, especially since our systems are brand new - I have spent more time on these new systems than i did on our old 4 year old IBM systems we had previously. Thanks for the reply though - keep me updated as you find things - i will do the same
Haven't checked in on this thread in a while - good to hear that another user is seeing the screen blanking like we are.
We're still having the issues. I must retract my earlier thought that this was only folks using non-native resolution or DPI scaling. It seems to happen regardless of these settings. Our "fix" (if you could call it that) is to modify a setting on the display, doesn't really matter which setting, and it will be fixed for another couple weeks or so.
I'm still pretty sure this is a DisplayPort / driver issue, rather than hardware. But I'm open to any ideas!
jruz, have you guys contacted Dell support about the issue? Just curious - we sent 2 units back to Dell to put in their "labs" - the "engineer" has stated the issue has not yet happened for her, after 2 weeks only - even though the issue can happen one day, and not happen again for another couple of months. Since I have been keeping track in April, it has happened 90 times - an alarming 2-3 times per week. I think the issue is also the Display Port card - This issue has not happened for those users who are using the onboard VGA card. Dell has to figure this out, as it looks poor on them
Hi i just got the problem because i had to use my old pc with an old radeon 9600 and i think i have found a workaround which might work.
First i added shortcuts to the vpu recover option to turn it on and one to turn it off.
If you want to wake up your display just turn the recover option off and on again, that forces the graphics card to leave the sleep mode and the display starts.
I don´t know if this is possible on all graphics cards but in my case it works.
I believe it may be a displayport issue. We are having the same issue with monitors not waking up from sleep mode on a few machines. First, here is the setup we have on several machines experiencing this problem:
-T3500, BIOS A03
-Windows XP SP3
-Nvidia Quadro FX3800 with 1 DVI port and 2 Displayports
We connect two 2007FPs, one by DVI and the other using a Displayport->DVI adapter that came from Dell. Both monitors are set to 1600x1200. When the system wakes up from sleep, the DVI connected monitor comes back fine, but the Displayport monitor says "out of range". Changing the display settings on the Displayport monitor to 1280x1024 brings the monitor back on. After this the settings can be switched back to 1600x1200 with no problems, but this only solves the issue for a little while. It is also hard to diagnose since it occurs intermittently. The latest Dell Nvidia drivers are from June, but I will try the newest ones directly from Nvidia. I hope this info is helpful in coming up with a permanent solution.
I just received 22 Dell Optiplex 780's. I'm having the problem that my monitors (Samsung LCDs) and HP Laserjet M2727nf (USB) both go to sleep and don't wake up without a power reset. I just went through all of the "Power Management" options and turned everything off so we will see if it still happens.....