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0

The simplest solution for you is to just buy one DVI to HDMI adapter (~5$ on amazon) and plug into one video card. As mentioned by Brad, mirroring is an easy thing for a single video card to do but not 2 video cards.


2

Solution: I finally found some information on http://www.manualslib.com/manual/440323/Acer-Aspire-V3-571g.html?page=9#manual External resolution / refresh rates: •VGA port up to 2048 x 1536: 75 Hz •HDMI port up to 1920 x 1080: 60 Hz so it seems the hardware does not support the resolution, even thought the graphic card and the HDMI port would.


1

The Alienware Alpha is intended to be used as a PC/Console connected to a large screen TV and that port is almost certainly a dumb "pass through" port and has no video capture hardware inside. This means that you are likely to use it alongside DVD, bluray, satellite receivers and similar, all of which need a HDMI port on your TV. This would be "yet another" ...


1

I don't know if this issue has been resolved, but I thought I'd just say it because it seems no one has yet. I was having this exact problem until I found a solution browsing the web. This can be resolved by using the Catalyst Control Center. There should be a scaling option under "My Digital Flat-Panels" and selecting scaling options. Good luck. Here is ...


0

This is happening because the switch is physically switching the power to the HDMI output away from the computer, making the PC think you have unplugged the screen. Unfortunately, this is a design feature of the switch you're using and there's not much you can do about it except using that converter you have.


0

I have the same problem except that when I press the + button, I can control the volume but I can't change the input source like you, when I press the auto button or the "-" button alone there is nothing on the screen, but I managed to get into the menu by pressing simultaneously the "-" button and the menu button (second button and fourth button). Did you ...


0

After playing around with proper cables and removing the insulation off the Ebay ones, I came to the realisation that the cheap cables had no foil or wire shielding. This also resulted in the case of the connector not being grounded. Replacement with another cable with sufficient shielding and proper grounding resolved all issues.


1

If your monitor has both in and out ports for DisplayPort, then I think it is supposed to be possible. The guy over at http://www.displayport.org/cables/driving-multiple-displays-from-a-single-displayport-output/ says that the final monitor in the chain can be a normal DisplayPort 1.1 monitor, and says that "next year" we should see hubs that would make it ...


2

Just to add a solution- I have a dual monitor set-up on Win 8.1 I have realtek audio on motherboard, but I have the sound coming through HDMI on monitor. I have this strange little quirk that when I boot into windows without the second monitor turned on, Win 8.1 seems to remove HDMI as a audio option. Not in control panel- sound or Device manager. So now I ...


0

I've found that the new 0.5.0.1 runtime is much better for direct mode. I'd start with upgrading to that version, making sure you have the latest firmware and then testing the Tuscany demo in direct mode.


4

There are a few answers indicating a digital signal vs. analog which is correct. But that does not answer the why? A few mentioned translation layers, this is sorta true too, a mainstream A/D conversion can cause a loss in fidelity, but you'd have to measure this as it is hard to see the differences with the naked eye. A cheap conversion and all bets are ...


1

HDMI and DVI are actually one and the same (at least in your context). DVI connectors are really just HDMI connectors with a different pinout (the rows of pins), plus VGA connectors with a different pinout (the pins arranged around a cross shape). If you look at your HDMI-to-DVI converter, you'll probably notice that the cross-shaped part is missing. So you ...


2

HDMI and DVI are very similar. Both are digital; the main differences are that HDMI supports audio and HDCP. When switching between HDMI and DVI, there is little actual conversion, but rather connecting the matching pins on the connectors. Display Port is a digital protocol, but VGA is analog, and the converter likely introduces small flaws and the reduction ...


3

Another issue is a lot of VGA cables are junk. If the VGA cable is less than 1/4" thick, you will probably notice ghosting on larger monitors (Higher the rez, more likely ghosting). I've even noticed ghosting on the attached VGA cable on some 19" CRT montitors. My VGA cables are about 1/3" thick and it really helps with the sharpness (Thicker wires, more ...


7

The others make some good points, but the main reason is an obvious clock and phase mismatch. The VGA is analog and is subject to interference and mismatch of the analog sending and receiving sides. Normally one would use a pattern like this: http://www.lagom.nl/lcd-test/clock_phase.php And adjust the clock and phase of the monitor to get the best match ...


12

Assuming brightness,contract and sharpness are the same in both cases, there could be 2 other reasons why text is sharper with DVI/HDMI: The first has already been stated, VGA is analog so will need to go through an analog to digital conversion inside the monitor, this will theoretically degrade image quality. Secondly, assuming you are using Windows there ...


42

VGA is the only analog signal from the above mentioned ones so it's already an explanation for difference. Using the adapter can further worsen your situation. some further reading: http://www.digitaltrends.com/computing/hdmi-vs-dvi-vs-displayport-vs-vga/


0

I've been using AudioSwitcher [freeware/donationware] for a long time to do this. It isn't automatic, but can be triggered by hotkey or from a taskbar popup to swap audio outputs on the fly - no relaunch required. I've never tested it on HDMI but it works perfectly well when I forget to switch outputs from iTunes - RCA stereo; to VLC - analog 5.1 before ...


2

In the display’s manual, on page 11, there’s a list of supported HDMI “standard” resolutions: 480p, 480i, 576p, 720p, 1080p, 576i, 1080i Further down, on page 12, where they state it’s HDMI 1.4, there’s an important footnote (emphasis mine): Does not support HDMI 1.4 optional specification, includes HDMI Ethernet Channel (HEC), Audio Return Channel ...


0

According to this, the graphics card in that laptop supports that resolution. Am I missing something, or would it not be as straightforward as plugging an HDMI cable into your laptop and that screen, if they both support that resolution?


0

For daisy chaining to work, the laptop itself must be connected via display port to the monitor. You cannot use an HDMI cable as it does not support MST.


0

To view and or change your refresh rates you can access it by right clicking on your desktop and clicking personalize, there will be a drop down menu that will display all of your available refresh rates. These are dependant on your display device though so you may run into some secondary issues using a cable to manipulate things.



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