Videos get pixelated

Chan-man

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Jan 27, 2014
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I have videos that i'm transferring from my mac mini to my nas box i've made and im actually doing it over a 10/100 switch so its slow when I transfer my 1gb file or 20gb-175gb folders. When i watch the videos on my mac they have pretty good quality when i watch them on my nas box they look really pixelated. I don't run my nas box headless yet which is how i can watch them on it.
 
Solution
You have a couple of issues going on I believe.
First : VGA is an analog signal. So you have a digital image being converted to analog which goes out the vga port and back into the tv where it gets converted back to a digital signal. These conversion processes typically cause signal quality losses.
Second is that the max resolution VGA can produce is dependent on several factors. Including the quality of the cable being used.

First make sure the graphics resolution your motherbd is using is set to 720/1080 or whatever is the native resolution of your display (you may need to Google for this) On your display , Right click on a blank part of your desktop and then left click on Screen Resolution. Select the resolution which matches the...
NAS is just a storage device, what are you using to actually watch the videos and is on the same monitor as off the mac? Or when you say "nas box" do you mean that it's a media player? Could be a resolution issue, could be that you are getting bandwidth issues on the network.
 

Chan-man

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Jan 27, 2014
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Well since i'm running win 7 ultimate I was just using windows media player or vlc. this is the motherboard i'm using http://www.asrock.com/mb/Intel/AD2700-ITX/ i'm guessing I'm not gonna get good video quality off the built in video chipset or card. Eventually this will be just the storage and i will have plex server on here and streaming them to roku devices or some other streaming device. Not it's a different monitor but it's new. When i say nas box i mean it's storage but I'm not running it headless yet which is how i'm watching them on my nas box. Idk to much about bandwidth issues but if you tell me what kind of problem i'm looking for I can tell you any info. I'm very technical minded but I am just getting started.
 
The onboard video will be just fine for video playback, if it looks bad it may be because the video resolution is lower than the monitor resolution. Try playing the video in a smaller window and see what it looks like. If you expand the video to full screen, it will make the video expand the same way. Try this, write something on a plastic bag, then stretch the plastic out. You see what happens to the letters? They get larger and distorted. Same basic thing is happening to video that is one resolution and you play it back stretched to fit a screen that does not match the resolution.
 

Chan-man

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Jan 27, 2014
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10,630


Well I think the resolutions are the same on both the monitors i'm playing them on but i'll check could it be cause the monitor on the nas box is via vga and the monitor on the mac is via dvi?
 

popatim

Titan
Moderator
You have a couple of issues going on I believe.
First : VGA is an analog signal. So you have a digital image being converted to analog which goes out the vga port and back into the tv where it gets converted back to a digital signal. These conversion processes typically cause signal quality losses.
Second is that the max resolution VGA can produce is dependent on several factors. Including the quality of the cable being used.

First make sure the graphics resolution your motherbd is using is set to 720/1080 or whatever is the native resolution of your display (you may need to Google for this) On your display , Right click on a blank part of your desktop and then left click on Screen Resolution. Select the resolution which matches the native resolution of your display/tv. (vga often defaults to 800x600)

Personally I would switch to an HDMI cable if you have an input available on your display. DVI would be my next choice.
 
Solution