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55

I see a range of problems in the answers and comments here (even in some highly-voted answers that provide otherwise very good information) that span from minor deficiencies that need explanation to some serious inaccuracies, so I think that some clarification is needed. The question is specifically: What is the difference between 1080p and 1080i? so I will ...


41

These are how the image is 'painted' onto the screen. The "i" in resolutions represents 'Interlaced'. Basically meaning every other (horizontal) line is drawn in one frame, and then the opposite lines are drawn in the next frame, leaving it up to your eyes/brain to put the two frames into one complete one. The "p" means 'Progressive', which means all the ...


30

Edit: since quite a lot has changed in the drivers (version 2011.0419 as of this writing) since I initially wrote this post, I decided to update it. The procedure is now drastically simplified: right click on the desktop and choose AMD VISION Engine Control Center from the left side of the window go to My Digital Flat-Panels and choose Scaling Options ...


17

1080p represents 1920 pixels displayed across a screen horizontally and 1080 pixels down a screen vertically. However, unlike 1080i all pixel rows or lines are displayed progressively, providing the most detailed high definition video image that is currently available to consumers. 1080i represents 1920 pixels displayed across a screen horizontally and 1080 ...


14

Just press the option key while you're in Displays in System Preferences. You'll get a Detect displays button (bottom right).


8

The i is for interlaced (each frame only updates half the lines each frame, as is the case with pure-HD television. The p is for progressive, which updates the whole screen. 1080i60 means that you're getting 60 half frames (alternating lines) per second, so only 30 complete frames per second. Sometimes an interlaced signal will be a progressive signal ...


7

This is normal - the SD version is for the iPod/iPhone (smaller file size). AFAIK there is no option to prevent download of the SD version.


6

I solved it! You need to unplug the HDMI cable before you do this because the driver doesn't show up in the list if you don't. If you locate the driver in "Properties", right click the speaker down by the clock on your desktop toolbar. Select "Playback Devices". There you should have the "Digital audio (HDMI)" icon. Click it and select "Properties" at ...


5

Televisions and monitors have different characteristics, such as brightness, reflectivity, resolution, price, etc. Typical 32" LCD has 1366 x 766 resolution, and wouldn't be comfortable for daily work. Casual online gaming should be ok though.


5

This problem seems to affect many people (as per search engines) with the most suspected/mentioned cause being insufficient drivers from ATI (NVIDIA apparently has updated its drivers for related issues successfully, while ATI tried that too, but some users still seem to have the same issue afterwards). Consequently you might try to find updated drivers for ...


5

Monitor configuration is stored in /Library/Preferences/com.apple.windowserver.plist. You should be able to delete that file entirely to return to default settings. EDIT: Found some more. Also remove every file named ~/Library/Preferences/ByHost/com.apple.windowserver.(gobbledegook).plist.


5

The problem is likely due to "overscan." It's normal for HDTVs, by default, to throw away a few percent from each side of the image. The reasons are historical; lots of TV broadcasts use the edges of the picture to encode data, and it can be distracting if it's visible. The best solution is to disable overscan on the TV; check its settings or manual, or ...


5

I was able to do this using a custom EDID in the screen, either by adding this to xorg.conf screen section: Option "CustomEDID" "DFP-0:/path/to/file/custom_edid.bin" Or by generating a config: sudo nvidia-xconfig --custom-edit="CRT-0:/my/monitor.bin" Now the big question, How to produce an acceptable EDID .bin? On Windows XP, I had to install two ...


4

I just installed a hdmi cable over a distance of 20 meters. At first I bought the cheapest 20m cable I could find -> 50€. Somehow it didn't really work. It worked for my tv, but not for my work lcd (which was the primary target). I then bought a cable for 100€ (again 20m) and that one is high speed certified (whatever that means) and has a build in repeater. ...


3

Have you tried an external cofiguration tool such as PowerStrip? They offer a free trial and you may be able to tweak the settings you need to get it to work. I had a similar problem a few years back with an NVidia card and was able to manual set it to output correctly. PowerStrip Homepage As for the particular settings that will work for your TV, you may ...


3

Sure. Current HDTV's are essentially large monitors with TV tuners built in. There are differences, mainly pixel density (or PPI).. The highest resolution TV you will get is 1920x1080, and it might be 50 inches. I have a 1920x1080 computer monitor and it's only 22 inches - meaning those 1920 pixels are smaller and closer together, thus the image will be ...


3

The TV should not be affected by you using iTunes in fullscreen Coverflow mode. The worst thing that could happen to your TV in such a case would be if you get burn-in (the same static image, such as the fullscreen iTunes controls, become burned into the image, creating a sort of ghost of the static image). Other than that, I can't really see a clear ...


3

Looks like the EDID is the problem. When you turn your TV off, the EDID of your computer video source is lost (since it is in memory in the TV). According to wikipedia: Extended display identification data (EDID) is a data structure provided by a computer display to describe its capabilities to a graphics card. It is what enables a modern personal ...


3

If you're certain that the TV supports the resolution, Try SwitchResX: http://www.madrau.com/SRX3/html/SRX/DL.shtml However, I've noticed a lot of HDTVs that incorrectly report their resolutions via the VGA hookup (even some pretty nice Bravias). A better long term solution is to grab a mini display port to HDMI adaptor, which will give you a pure digital ...


3

There is no definitive max length specified in the HDMI specification. I'm using a 5m cable myself to transmit 720p without issue. There's usually not any difference in quality between cheap and expensive cables. I would go for the cheapest cable I can find at the length you want.


3

According to these Gizmodo articles (The truth about Monster cable, Part I, Part II & Part III), for a short 2m run practically any cable will do, but for 10m runs to 1080p you might run into problems with lower quality cables. They suggest trying a cheap cable to start with and if you have problems look for a certified HDMI 1.3a "Highspeed" cable. The ...


3

This is really old but I found a solution that still works in OS X 10.11.2: hit cmd + "brightness up" for display detection and cmd + "brightness down" to switch between mirror and extend display modes. It seems to be the brightness keys and not necessarily the F1 and F2 key.


3

Both ATI and Nvidia have Linux drivers available. They're usually closed source, but they will work. Any new graphics card will have HDMI or DVI. DVI is 100% compatible with HDMI, they're the same connection but a different plug. You can get converter cables, and some graphics cards even come with converter dongles. The larger concern is going to be power. ...


3

If you intend to clone the image out from the laptop, you will likely end up with the letter-boxing. In order to get the full resolution on the tv, you would need to either use extended desktop, or external-only video. Extended Desktop would make the TV a second monitor at full resolution that you could drag windows over to You could also set the TV as ...


3

This Mini DisplayPort to HDMI adapter is available from Apple. You will also need an HDMI cable. Apple offers this one (as well as several others).


3

3D technology is evolving rapidly, with several competing approaches under development, so the HDMI 1.4 specification establishes protocols for a number of popular 3D display methods, including: Frame, line, or field alternative methods Side by side methods (full and half) 2D plus depth methods A complete list of the supported 3D formats can be found in ...


3

Just send the output to JUST the HDTV, then you can use the TV's native resolution. So, if you have a 1080P television, it will send out to 1080P, assuming your graphics card supports it and you use a DVI or HDMI cable (will VGA output 1080p?)


3

the t200 has maximum video resolution 2048 x 1152, 32-bit so it can the t100 has maximum video resolution 1280 x 1024 (standard screen); 1440 x 900 (widescreen) 32bit so it cannot


3

Yes, it is possible for a cheap HDMI cable to produce a poor image, as you are seeing. Effectively, your cable is "dodgy", and is distorting the "digital" signal so much that it is corrupting the bits on the way through. This is much like a "marginal" signal for digital TV - you still get a picture, but it freezes and is quite blocky because parts of the ...



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