I bought an inexpensive computer monitor able to output 1080p resolution at 50Hz (for use with 25p material). Now, when I connect the monitor to the MXO2 mini and output an image, the image is not full resolution. The monitor displays 1919x1079i resolution instead and the image is pixelated with a slight flicker.Is it the MXO2 mini, Avid or the monitor? The monitor is a Samsung SyncMaster P2450.
If so, is it better to buy a TV to use as a monitor instead of a computer monitor?
64 bit, GPU acceleration, better AMA, better exports with GPU acceleration, better grading with true secondary and lift gamma gain, higher resolutions (4K, 5K etc.) and a video stream online (for directors being far away on the phone or skype).
That would blow ANY competition away and it will be future-proof MC for a long time.
The Mini uses Component out or Hdmi, which of them are you using for the screen?
Tomas
mjolnarn: The Mini uses Component out or Hdmi, which of them are you using for the screen?
HDMI
Is the monitor set to "scan" or "1:1 pixel mapping"?
Some monitors will apply scan or "overscan" to any image you feed them.
But according to Matrox it is only when you use a monitor without native resolution that you need 1x1.I'm outputting a 1080p signal to a 1080p monitor. It should be just that, not 1919x1079i.
So, is it the MXO2 mini that outputs wrong or the monitor?
Glans:But according to Matrox it is only when you use a monitor without native resolution that you need 1x1.
Huh? I think I don't understand that.
My Pana plasma display has a 1:1 pixel mapping option. If I turn it off, the display blows up the image slightly, displaying "scan". If I enable 1:1 pixel mapping, the entire 1920x1080 pixels appear on my display, sort of "underscan". I would think that ONLY displays of the right native resolution can do 1:1 pixel mapping. Then one pixel of source gets to be displayed at one pixel of the screen, without any scaling.
Or are you saying that your monitor tells you that it is receiving a 1919x1079i signal from the MXO2 Mini? Because that would be very weird.
Been out working for a while, Christoffer, in the bottom of your screen, you have the output settings, could you do a check and tell what it says
Reviving this thread with a similar problem:
Feeding 1080i video from MC with my MXO2 Mini to a DELL U2413 monitor over HDMI, I noticed some cropping (source monitor inside MC vs DELL monitor)..
In such a configuration, I was expecting 1:1 pixel mapping from end to end...
The problem is: I have no clue where the overscan (or underscan) occurs: the DELL monitor doesn't seem to have an overscan enable/disable option, and the Matrox UI or doc don't seem to mention this either...
The DELL monitor doesn't give a lot of info about the incoming signal, it just says "Resolution: 1080i"
Any clue ???
BenoitM:Any clue ???
Help ?
There should be a setting for this inside the Matrox controlpanel, are you saying that you don´t have that
mjolnarn:are you saying that you don´t have that
that is correct
Just checked and also refreshed my own memory, there are no such settings in the Matrox panel as the units always sends out 1:1 pixel mapping.
The settings are in the screen so you need a screen either with those settings as standard or a screen with adjustable settings for how to handle incoming hdmi pixel formats.
I would need to re-check, but I think that the display in question is properly doing 1:1 pixel mapping when I connect my laptop to it using HDMI.
If this and your statement are true then I guess the display will automagically switch between 1:1 mapping and underscan depending if the signal received is from a "computer" (1920 x 1200 x 60p) or a video device (like the Matrox box) (1080i/50i). I'm not familiar with HDMI protocol but then I guess there should be some sort of signalling to trigger this...
mmmmh, on the DELL side, they believe the problem is with the GPU (in this case the MXO2 unit then):
"DELL U2413: seems to do underscan on the HDMI input: how to disable ?"
Things are getting complex:
I took a couple of hours playing with various test patterns and found strange things:
Essentially, when working in progressive mode, there is no overscan with the MXO2 mini and the DELL U2413 monitor. But when working with interlaced video (1080i/50 project), there is definitely slight overscan AND upscaling (with the consequences: aliasing,...) either only horizontally (if the monitor is set to "1:1" mode) or both horizontally and vertically (if the monitor is set to "16:9" or "auto" mode).
more details in this post on DELL forums: http://en.community.dell.com/support-forums/peripherals/f/3529/p/19593753/20671591.aspx#20671591
Oh my ! [:'(]
FWIW: Dell posted this answer: "This over-scan for 1080i video timing is part of a Dell requirement for all interlace modes and cannot be changed."
If anyone has recommendations for a 24" desktop monitor with specs and prices similar to the DELL U2413, and the possibility to do true 1:1 pixel mapping in 1080i mode, I'm interested ! I guess that in this price range, a true HD video monitor doesn't exist...
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