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 Post subject: Blue Dots distortion in Blu-Ray
PostPosted: Thu Mar 10, 2011 9:03 am 
8086
8086

Joined: Sat Nov 08, 2008 5:10 pm
Posts: 6
I recently purchased and installed an XFX 6850 in my home theater PC. Everything seemed to be okay, but when I popped in a Blu-Ray for testing, some of the previews were just green screens, but I could still hear the audio. I have watched this BD before, so I know it’s not the disk.

After passing the previews and getting to the menu, I select play and it does. The problem is when it gets to black scenes I see blue dots in the blackness. I was watching Wall-E and the beginning starts in space. So a lot of blackness. One weird thing I noticed. Even the black bars at the top and bottom of the screen have blue dots in them. At first I thought this was only affecting the Blu-Ray movies. However I watched an episode of House and I noticed them in very dark portions of the screen.

I have the HTPC going via HDMI to my Onkio 7.1 receiver then via HDMI to my TV. I have NEVER noticed these black lines in the other HDMI content I watch. Comcast cable, Samsung DVD player, XBOX 360, even another PC with an onboard Radeon HDMI.

Do I have a bad card? Is this a known problem? Should I just return it, and go back to nVidia?

HTPC is:
XFX 6850 w/ Latest Catalyst drivers
Windows 7 Ult. x64
Asus P5Q Pro
Intel q9550
Happauge Tuners x3
ATI Tuner PCIe
Seagate hard drives x9
Intel SSD G1 80GB
3Ware SATA RAID Controller 9650


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 Post subject: Re: Blue Dots distortion in Blu-Ray
PostPosted: Thu Mar 10, 2011 9:18 am 
Team Dino
Team Dino
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Joined: Mon Jun 28, 2004 6:29 am
Posts: 6122
Location: Huntsville, Alabama.
What software are you using?

I've seen similar color problems on my Radeon HD 5670, and usually a reboot solves the issue.

I'm guessing it's the Catalyst drivers.

n0b0dykn0ws


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 Post subject: Re: Blue Dots distortion in Blu-Ray
PostPosted: Thu Mar 10, 2011 12:01 pm 
8086
8086

Joined: Sat Nov 08, 2008 5:10 pm
Posts: 6
I am using Cyberlink Power DVD 9 Ultimate version. and Snapstream's Beyond TV 4.9. It happens in both.


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 Post subject: Re: Blue Dots distortion in Blu-Ray
PostPosted: Thu Mar 10, 2011 12:50 pm 
Team Dino
Team Dino
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Joined: Mon Jun 28, 2004 6:29 am
Posts: 6122
Location: Huntsville, Alabama.
Have you had a chance to try rebooting?

n0b0dykn0ws


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 Post subject: Re: Blue Dots distortion in Blu-Ray
PostPosted: Thu Mar 10, 2011 1:55 pm 
8086
8086

Joined: Sat Nov 08, 2008 5:10 pm
Posts: 6
Yes I have rebooted several times.


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 Post subject: Re: Blue Dots distortion in Blu-Ray
PostPosted: Fri Mar 11, 2011 7:15 am 
Team Dino
Team Dino
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Joined: Mon Jun 28, 2004 6:29 am
Posts: 6122
Location: Huntsville, Alabama.
Did you make any Catalyst changes prior to this happening?

What was your previous card?

n0b0dykn0ws


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 Post subject: Re: Blue Dots distortion in Blu-Ray
PostPosted: Fri Mar 11, 2011 7:33 am 
8086
8086

Joined: Sat Nov 08, 2008 5:10 pm
Posts: 6
Thanks for the replies.

When I first say the blue dot issue it was just after installing the 6850. I had made no changes other then initially installing the drivers and rebooting. My old card was a nVidia 9600GT. However I had problems with that card outputting to HDMI, I could not get the sound through it. So I used a ASUS Xonar DX card to output 7.1 to the Onkio, and used the 9600GT's VGA output directly to the TV.

I tried again to watch a Blu-Ray. At first it seemed fine, but after a few minutes it was showing the dots in the blacks.

Matt|ttaM


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 Post subject: Re: Blue Dots distortion in Blu-Ray
PostPosted: Fri Mar 11, 2011 7:43 am 
Team Dino
Team Dino
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Joined: Mon Jun 28, 2004 6:29 am
Posts: 6122
Location: Huntsville, Alabama.
Are you still running through the Xonar or are you going straight from the 6850 to the receiver?

Also, have you uninstalled all old drivers that are no longer needed?

I use a program called REVO Uninstaller. (The freeware version works just fine.)

Make sure you remove all nVidia drivers.

If you're still getting blue dots, try the HDMI connection to a different input on the Onkyo receiver.

If you're still having issues I have one or two more things to try.

n0b0dykn0ws


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