What settings should I use for 2 monitors on Acer 1775?

pacoaster

I have my Acer 1775 connected to 2 TVs via HDMI, in my living room and "indoor cycling center." When I put the TV on in the cycling room, the picture is usually screwed up. The window is often off-centered on part of the screen, or only the screensaver appears. Most times the taskbar isn't there, so I can't adjust the settings there. Then, I'll go back to the living room, turn that TV on, then the picture may — or may not — be OK on the other TV. Then, back to the living room to adjust the settings there. Then back to the other to see if it's now correct. Then, back to the living room. Then back to the other . . . This is getting to be VERY aggravating! So, how exactly am I supposed to set it up so it works correctly on the second TV? (The one in the living room is always correct, as long as the other TV is off. Turning the 2nd TV on sometimes screws up the picture in the living room) Since I'm not viewing 2 different feeds on both screens at the same time, am I safe in assuming I should chose "duplicate monitors?" The TV in the living room is 1080, the other is only 720. (I did change resolution for that one.) Is there some other setting I have to adjust? Or, is this just some kind of a quirk with the computer?

StevenGen

https://community.acer.com/en/discussion/722947/what-settings-should-i-use-for-2-monitors-on-acer-1775

First of all this so called Acer 1775 is the Acer Aspire TC-1775 desktop, so be specific, secondly give us the exact TV models that you are using and their specs, as your problem could be from the TVs HDMI ports that are not compatible with your TC-1775 desktop HDMI1 that is a V2.0b and HDMI2 is a V1.4b, the HDMI cable that you are using or and if you are plugging any of the TVs into the TC-1775 oem Acer fitted GEFORCE GT 730.2GB gpu HDMI port is also not compatible? Give us more details.

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pacoaster

TVs are Sharp Aquos LC-52le820un and Hitachi l26d204. Both are at least 10 years old, so I know they're not the newer HDMI versions. (I've read they're supposed to be "backward compatible.") Since the Sharp is the higher resolution, is it best to have that in HDMI1?

Larryodie

How long are the HDMI cables ???

StevenGen

https://community.acer.com/en/discussion/comment/1333367#Comment_1333367

Use the newer HDMI1 2.0b port for the higher resolution Sharp and use the lower HDMI2 1.4b port for the Hitachi, I would not use a HDMI cable longer than 6 foot as that is a factor also. But imo its the compatibility of your old TVs that are the problems that you are having.

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Larryodie

I too think it's a combination of LENGTH and old day HDMI that can't keep up with the newer faster HDMI.

Use amplifiers to compensate for the length

billsey

TVs often have an overscan setting in their menu that extends the edges of the display out of the viewable area, so you don't have a black border around playing videos. That tends to cut off things that are normally at the screen edge, like the taskbar. If you disable overscan you will see the full computer display. As suggested, long cables can cause display glitches, but that doesn't seem to match your descriptions. Don't use the duplicate function, since that would force all three displays into the same 720P resolution. Make you adjustments on the TV side once Windows knows the resolution on each extended display.