Resolution matching

I have a question about resolution when sending files from FCP to and from Shake.
The video format is HDV 720p30
I started by sending one clip out to use the smooth cam function,
when I brought it back in after rendering,
I noticed a luminance difference and somewhat pixelated.
At first I thought this was from the smooth cam so I resent the file and
re-rendered it out with no filters at all and when I brought it back in it
the pixels and luma change was still there.
The file out node is selected as Quicktime and HDV720p30
my question is, is there something I'm not doing to ensure that my video
is the same between FCP and Shake,
I tried using "none" as the codec and this helps with the pixels but not the luma.
any Ideas or anybody have the same problem??
Thanks
Craig

I can only guess it's in the transcoding. As I understand it, Shake doesn't do any codecs "native" it deals with uncompressed 4:4:4, so I'd guess the luminance shift comes from going YUV->RGB->YUV with a re-encoding on output...
Patrick

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regards
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[SOLVED] Configure dual head with different resolutions xf86-video-ati

I have 1680x1050 and 1280x1024 monitors which I would like to setup so that I have two displays (:0.0 and :0.1), i.e. can't drag a window to the other display, but can move the mouse from one screen to the next. The graphics card is Radeon HD 4850.
At the moment I have one screen only, so I can't move the mouse from the first to the second screen, it is captive in the first screen.
xrandr -q
Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 1680 x 1680
HDMI-0 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 338mm x 270mm
1280x1024 60.0*+ 75.0
1280x960 60.0
1152x864 75.0 70.0
1024x768 75.0 70.1 60.0
832x624 74.6
800x600 72.2 75.0 60.3 56.2
640x480 75.0 72.8 66.7 59.9
720x400 70.1
VGA-0 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 338mm x 270mm
1280x1024 60.0*+ 75.0
1280x960 60.0
1152x864 75.0 70.0
1024x768 75.0 70.1 60.0
832x624 74.6
800x600 72.2 75.0 60.3 56.2
640x480 75.0 72.8 66.7 59.9
720x400 70.1
DVI-0 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 474mm x 296mm
1680x1050 60.0*+
1600x1200 60.0
1280x1024 75.0 60.0
1440x900 75.0 59.9
1280x960 60.0
1152x864 75.0
1280x720 60.0
1024x768 75.0 70.1 60.0
832x624 74.6
800x600 72.2 75.0 60.3 56.2
640x480 75.0 72.8 66.7 59.9
720x400 70.1
xorg.conf:
Section "ServerLayout"
Identifier "dual head configuration"
Screen 0 "Screen0" 0 0
Screen "Screen1" RightOf "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "Files"
EndSection
Section "Module"
Load "glx"
Load "dri"
Load "drm"
EndSection
Section "InputDevice"
# keyboard added by rhpxl
Identifier "Keyboard0"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection
Section "Monitor"
Identifier "Monitor0"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
DisplaySize 444 277
EndSection
Section "Monitor"
Identifier "Monitor1"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
DisplaySize 339 271
EndSection
Section "Device"
Identifier "Videocard0"
Driver "radeon"
BusID "PCI:2:0:0"
EndSection
Section "Device"
Identifier "Videocard1"
Driver "radeon"
BusID "PCI:2:0:0"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1680x1050"
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Videocard1"
Monitor "Monitor1"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024"
EndSubSection
EndSection
Xorg.0.log:
(==) ServerLayout "dual head configuration"
(**) |-->Screen "Screen0" (0)
(**) | |-->Monitor "Monitor0"
(**) | |-->Device "Videocard0"
(**) |-->Screen "Screen1" (1)
(**) | |-->Monitor "Monitor1"
(**) | |-->Device "Videocard1"
(**) |-->Input Device "Keyboard0"
It doesn't look as if xrandr can help as it reports a maximum virtual desktop of 1680x1680.
Because the two monitors are different resolutions I don't know if a single screen is the answer.
I used to have two displays/screens configured to two different resolutions matching the monitors using the catalyst driver but can't get it working using the xf86-video-ati driver.
Any help would be appreciated.
Thanks
Willem
Last edited by Willem (2010-01-02 20:42:41)

Thanks, with your help I was able to get it working.
The xorg.conf relevant sections:
Section "ServerLayout"
Identifier "dual head configuration"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "Monitor"
Identifier "Monitor0"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
DisplaySize 444 277
EndSection
Section "Monitor"
Identifier "Monitor1"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
DisplaySize 339 271
Option "RightOf" "Monitor0"
EndSection
Section "Device"
Identifier "Videocard0"
Driver "radeon"
BusID "PCI:2:0:0"
Option "Monitor-HDMI-0" "Monitor0"
Option "Monitor-DVI-0" "Monitor1"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Virtual 2960 1050
EndSubSection
EndSection
Would still be interested to get a seperate display for each monitor working though.

What resolution do I need in an external monitor for my 15" G4 Powerbook?

Hello mac friends this is my first post I really hope someone can help me out. I need to get an external monitor for my 15 powerbook g4 1.67 w/ 64 mb graphics card. I can not find any monitor on the market whos' native resolution matches that of my g4 (1280x854). Do I need to match the native res? I ideally would like a widescreen b/w 20 and 23", though I am not crazy about the apple displays (mainly the $). I am trying to figure out what native res I need to be looking for in an external monitor, etc. Anyone who can advise would be greatly appreciated!!! Thanks- Jon
PowerBook G4 15inch 1.67ghz Mac OS X (10.4.9) low res, 1.5gb ram

The fact that you don't need to match the native resolution disguises a great and valuable feature: Your PowerBook can drive monitors higher than its native resolution. Check the specifications for your PowerBook to see how high it can go. (There's a Specifications link at the top of this page.)
For example, my PowerBook G4 native resolution is also 1280x854 like yours. I bought a 20" Apple Cinema Display which is 1680x1050. Is that a problem? No, it's GREAT. Because I didn't just double my screen space, the external more than doubled it thanks to the ability of the PowerBook video card to go beyond the native resolution. My PowerBook's specs say I could run a monitor up to 2048 by 1536 pixels. (Many Windows laptops have the same capability.)
You can go to any computer store and buy just about any monitor that has a DVI or VGA port on it, that is within the resolution range for your PowerBook, and it will work. Dell, Samsung, NEC, etc. should all be OK if you want to save money. DVI is better and plugs in directly, but if you buy VGA, you will need to use the VGA-DVI adapter that came with your PowerBook.

How to make Image/size/resolution agree with metadata resolution?

After scanning the help file a bit and searching thru this forum a bit with `metadata resolution' as search criteria, I'm still pretty confused about how it is supposed to work.. I may have never actually found the right part of the help file.
Cutting to the chase: How can I make the resolution reported by the metadata tab for resolution agree with what is reported inside photoshop at Image/size resolution. I didn't see any way to set how res is reported in bridge.
I see many pictures reported in metadata as 72 ppi for resolution and reported in photoshop as 200 pixel/inch
They do BOTH mean pixels per inch right? If so, or really even if they don't how can I get the two reports to show the same resolution?
There are too many processes that depend on knowing res in advance of opening a file for that to be so far divergent.

Jingshu Li wrote:
Some JPG or Tiff with Camera raw settings will be opened in ACR firstly when you double click them. In ACR workflow option (the bottom in the ACR dialog) the resolution value isn’t same with that in Bridge (metadata panel). If you go ahead to open the image in PS by clicking ‘Open Image’ button in ACR dialog and then check the image size from Image -> Image Size in PS, the resolution will be same with ACR (actually it is changed by ACR).
If disable ACR support for JPG and Tiff in Bridge (Open Camera Raw Preferences in Bridge and choose ‘Disable JPEG support’ or ‘Disable TIFF support’ for ‘JPEG and TIFF Handling’), JPG or TIFF files will be opened by PS directly and the resolution matches between Bridge and PS. I believe this is an ACR bug.
So what file types are you using and if they’re opened by ACR firstly in your workflow?
The files are *.jpg. But I don't see where camera raw comes in. These are common jpg files. I'm opening them by double click in bridge.
Any way I did disable jpg and tiff in the Camera Raw preferences as you suggested. At Jpeg and tiff handling, both disabled. and restared bridge.
However, I see no improvment.
For example, a file reporting 72 ppi in bridge when opened in photoshop ... Images/size resolution reports 480 pixels/inch.
There is obviously some kind of miss handling that has been done to these files for them to have such a high resolution. I suspect they may have been handled at Walgreens or Walmart... or similar since I had something very similar happen to me once when I had a bunch of pictures developed at Walgreens and they cam back with resolutions like that, when I know the camera would have given them something way less.
But I don't see how any of that should be effecting Bridges inability to get the resolution right.
Here is another example: some.jpg
It appears that bridge is showing an unusually huge file size in inches, to account for the reported 72 ppi.
Bridge:
Size: ...............1.14mb
Dimensions:.....1496x1064
Dimensions in
inches ............20.8x26.7
Resolution: .....72 ppi
===========================
Photoshop:
pixels
Width 1496
height 2064
Document size
inches
width 4.987
height 6.88
Resolution 300
Do you have further suggestions?

DPS and iPhone Resolutions

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Hi aefulcher,
It sounds like you had the external display set to mirror the internal display so the resolution(s) were changed to match each other.
OS X: How to use multiple displays with your Mac in Mountain Lion and earlier
http://support.apple.com/kb/ht5019
Check if the current resolution matches your screen's natiive resolution.
Thank you for visiting Apple Support Communities.
Nubz

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<http://www.kanexlive.com/xd>
<http://www.belkin.com/IWCatProductPage.process?Product_Id=508267>
<http://www.atlona.com/Atlona-Dual-Link-DVI-to-Mini-DisplayPort-Converter-USB-Pow ered.html>
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Hi leahmturner,
I see that you are experiencing an issue with choppiness while AirPlay Mirroring from your computers to your Apple TV. I have an article that contains some helpful troubleshooting steps for you regarding this issue:
About AirPlay Mirroring in OS X - Apple Support
http://support.apple.com/en-us/HT201343
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Select (check) the “Automatically allow signed software to receive incoming connections” checkbox.
Thanks for coming to the Apple Support Communities!
Regards,
Braden

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Hello ekeby,
Thanks for using Apple Support Communities.
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About AirPlay Mirroring in OS X
http://support.apple.com/kb/ht5404
Optimizing image quality
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In daily use: R60F, R500F, T61, T410
Collecting dust: T60
Enjoying retirement: A31p, T42p,
Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W
Starting Thursday, 08/14/2014 I'll be away from the forums until further notice. Please do NOT send private messages since I won't be able to read them. Thank you.

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I work at a College and manage over 100 classroom computers. In each classroom the computer is connected to a projector. When we moved to Mavericks we lost the majority of display resolutions formerly available to us and unfortunately, none of the remaining resolutions match the native resolution of our projectors. We primarily set up our computers and projectors in mirrored mode.
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Also, it should be noted that with the 1.7IMG release they changed the way the front display functioned. It now changes to show the channel number at every program change and then reverts back to showing the clock after about 2 minutes.
"If your problem has been solved, please mark it as such. Don't forget to hand out your Kudos!"

Resolution matching

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