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Supreme Being
Group: Forum Members
Last Login: Today @ 4:12:00 AM
Posts: 246, Visits: 1,896 |
| After using VR920 for one week, I noticed one issue - sometimes when you play, the screens can became bluish, it can flicker with blue color, or just suddenly turn blue, and then suddenly goes ok. It's not always, I tryed my VR920 unit on my work, and as I saw it was ok.
Can this be a temperature issue? Cause now is summer and it's pretty hot in my room. Anybody noticed somethig like that with own VR920? |
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Supreme Being
Group: Forum Members
Last Login: 2/16/2010 8:32:02 PM
Posts: 208, Visits: 337 |
| Make sure you unplug the USB cord when not using it. The screens will stay juiced up if its plugged in and may get weird if left for too long unattended. I've seen blue screens, sometimes random color garbage or other visual glitches. This has never happened while I was playing though. Only if I left the unit on like overnight and forgot about it. In either case, you just need to unplug the USB cord and let it cool off. After that its fine. If it happens a lot then it might be a defective unit. I've only had this happen on maybe 2 or 3 occasions and it might not even be the same problem.
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Supreme Being
Group: Forum Members
Last Login: Today @ 4:12:00 AM
Posts: 246, Visits: 1,896 |
| | Can it be cause I use VGA output on my videocard? I use 6600 G-Force. On my work-place I connected it via DVI-connector and see no bugs like that. I will try to use it via DVI at home... This idea came to me today morning. P.S. About overheating, maybe it's really too hot in my room. |
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Supreme Being
Group: Forum Members
Last Login: 2/16/2010 8:32:02 PM
Posts: 208, Visits: 337 |
| Also make sure that the VGA plug is screwed into the VGA card tight. Its very easy to get pulled while you are gaming (especially if you are using headtracking). This could cause issues like you mentioned. I would just unplug the VGA plug and blow on it, then plug it back in. 60% of the time, it works every time.
If this keeps happening I would recommend you contact Vuzix by email. I don't think they ever read the forums.
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Supreme Being
Group: Forum Members
Last Login: Today @ 4:12:00 AM
Posts: 246, Visits: 1,896 |
| I've just finished my experiment.
I started to use VR920 via VGA port, check the starting time and launch TRON 2.0 with NVidia stereo drivers enabled, I also started GlovePIE with mouse emulation to look around in idle situations. Temperature in the room around 28-29 of celsium.
So blue-screen bug started to appear in 30 minutes after powering on VR920... It's flicker a bit and then goes ok... After 40 minutes display became blue. And nothing could help it, only re-powering via it's USB. So I turned off PC, get to chill my Vuzix unit, and then connect it to my video-card by DVI (using VGA-DVI plug from the device's box).
I started the same game with the same params and all goes fluently.. I played more then one hour and didn't noticed any artifact as I've seen before! 
Perhaps something wrong with my VGA connection, temperature in the room was the same whole experiment so that's not a factor.
I will re-check this tomorrow, hope connecting unit to DVI really solved the problem.
Thanks Cybereality for advice! If problem will be continue (I'm suppose it's not) I will contact Vuzix via e-mail.
P.S. TRON 2.0 in stereo-mode with head-tracking emulation is really stunning and addictive! But after some high-speed races on lightning cycles in real 3D I get a bit sick...  |
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| | | Supreme Being
Group: Forum Members
Last Login: 1/29/2009 12:33:13 AM
Posts: 136, Visits: 408 |
| hey,
it sounds alot like it is a problem with your GFX card because the blue screen you are talking about is what you get when there is no video signal reaching the device. it use to be just a black screen but now it is blue with latest firmware. if this is so how long ago did you get your GFX card because if it was resent i would think about geting it replaced under warrenty and if you can check out the connection with the same test but instead of vr920 just use a normal vga monitor. if you get the same no signal problems then it is definatly your GFX card. |
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Supreme Being
Group: Forum Members
Last Login: Today @ 4:12:00 AM
Posts: 246, Visits: 1,896 |
| | I will check today with monitor, and also I want to make a test of VR920 on my laptop, so all will be clear. When I talked about blue-screen - is not only blue, I get the picture, but the picture like in blue-fog. Something like from RGB model - Red color is totally disappear. I will post after experiment, hope problem will be in bad VGA on my GFX, because I decided to buy a better one videocard  |
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Supreme Being
Group: Forum Members
Last Login: Today @ 4:12:00 AM
Posts: 246, Visits: 1,896 |
| | Seems to be all going ok. Changing VGA to DVI was the right decision. |
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Supreme Being
Group: Forum Members
Last Login: Today @ 4:12:00 AM
Posts: 246, Visits: 1,896 |
| | Tested my VR920 on another PC, get the same bug - if I use VGA I get periodically blue flickering on screens of VR920. If I use it on DVI - all normal. Does anybody use VR920 via VGA? Did you noticed something like that? Sorry for bugging, but I really want to know what's the point. |
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Supreme Being
Group: Forum Members
Last Login: 2/16/2010 8:32:02 PM
Posts: 208, Visits: 337 |
| I've always had mine plugged in with the DVI adapter so I don't know about straight VGA issues. I guess you should be happy you found a work-around. If it works, it works!
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