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Laptop doesn't recognize 2nd monitor resolution

225 Views 6 Replies 3 Participants Last post by  Aq4rius
Hey guys i have a strange problem with my second monitor, it is a 24 inch 1920x1200 monitor, but it doesn't recognize this resolution. Maximum resolution i can set is 1024x768. What's strange is that when i connect this monitor to my other computer, it works fine. On the other hand when i connect my laptop to other monitor with 1920x1080 resolution it works fine aswell. What's even more strange, is that yesterday after struggling with this problem for quite some time, when i changed in windows display option the "main" display to be the one where it didn't recognize higher resolution, it suddenly repaired, i switched back to laptop being my main display and it remained good for the rest of the day. But today after i turned on my laptop, it went back again to this problem and i can't set the resolution i want (1920x1080).
Monitor: NEC EA243WM
Laptop: Acer nitro 5 (AN515-51) with NVIDIA GeForce GTX 1050 Ti
I've made sure all the drivers are up to date. Just in case reinstalled them. Even tried setting a custom resolution in Nvidia display settings to 1920x1080, it worked but with horrible quality.
Monitor is connected via HDMI. Yesterday i tried couple different hdmi cables and the problem was the same, right now i have the one on which it finally started to work properly yesterday (although there were some interferences when touching and moving the cable). Unfortunately i don't have any other (DVI/VGA/DP) cable to compare.
Any ideas ? Should i go buy a new hdmi/or other cable, or maybe there is something wrong with my hdmi port on laptop, but i doubt it as it works well in other configurations (other monitors).
Edit.
Now, after around 2hours of struggling, i once again changed the "main display" and it has repaired. I am able to set any res. up to 1920x1200. No idea what's going on, does the monitor need to warm up(2h?!) to reveal its full potential 馃槄?
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Has this always worked? Depending on the video card and how you are connecting the 2 monitors. It looks like there is one HDMI? If so, are you using a USB-C adapter?

My Dell machine can handle 3 monitors with a dock without issue, but the model below can support 3 monitors, but the resolution on one of them has to be lowered because the video card is not powerful enough to send max resolution.
Are you actually connecting TWO external monitors
Or when you refer to second monitor - are you referring to second - as per laptop screen and ONE external monitor

Yesterday i tried couple different hdmi cables and the problem was the same, right now i have the one on which it finally started to work properly yesterday (although there were some interferences when touching and moving the cable).
That raises the question, does it also produce interference on the OTHER HDMI cables

You are very unlikely to achieve the resolution you want
NVIDIA GeForce GTX 1050 Ti Mobile Specs | TechPowerUp GPU Database

You do not of course have the GTX 1050Ti - as in the actual card you have the 1050Ti Mobile graphics chip

I may be wrong but I think the only port on that laptop for an external monitor is the HDMI port

Acer Nitro 5 secondary display - Acer Nitro AN515-51 鈥 Acer Community
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Has this always worked? Depending on the video card and how you are connecting the 2 monitors. It looks like there is one HDMI? If so, are you using a USB-C adapter?

My Dell machine can handle 3 monitors with a dock without issue, but the model below can support 3 monitors, but the resolution on one of them has to be lowered because the video card is not powerful enough to send max resolution.
I may have wrote it confusingly, sorry, I am connecting only one external monitor. Regarding the question if it has always worked, i have never had any problems with other monitors and run them on 1920x1080 resolution, and this one i only got 2 days ago, but the problem occurs only on laptop, on my computer it's okay.
Are you actually connecting TWO external monitors
Or when you refer to second monitor - are you referring to second - as per laptop screen and ONE external monitor


That raises the question, does it also produce interference on the OTHER HDMI cables

You are very unlikely to achieve the resolution you want
NVIDIA GeForce GTX 1050 Ti Mobile Specs | TechPowerUp GPU Database

You do not of course have the GTX 1050Ti - as in the actual card you have the 1050Ti Mobile graphics chip

I may be wrong but I think the only port on that laptop for an external monitor is the HDMI port

Acer Nitro 5 secondary display - Acer Nitro AN515-51 鈥 Acer Community
Only one external monitor. It doesn't produce any interferences on other cables. Why am i very unlikely to achieve this resolution ? I've had different monitors for a long time and never had any similar problems, all of them run easily on 1920x1080 res. Here also it is possible, as I already managed it 2 times to set it, but always after ~2 hours after turning the monitor on. So the question is why does it take so long for it to be able to recognize those higher resolutions.
My information is that on that laptop the supported resolutions via HDMI which is as I said, I understand the only available external monitor port are:



Then of course you have to compare that with the supported resolutions and refresh rate of the monitor
As I am sure you know, different monitors support various resolutions and refresh rate.
ea273wm_ea243wm_usermanual.pdf (sharpnecdisplays.us)

I was not in doubt that you had ONLY the one external monitor, what unfortunately I am having trouble sorting out from your post is WHICH resolution displays faultlessly and which does NOT display at all - and which displays but with poor or not ideal quality.

Have you checked monitor menu for any message regarding resolution
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I was not in doubt that you had ONLY the one external monitor, what unfortunately I am having trouble sorting out from your post is WHICH resolution displays faultlessly and which does NOT display at all - and which displays but with poor or not ideal quality.

Have you checked monitor menu for any message regarding resolution
The highest resolution that i am able to set on the external monitor is 1024x768 and it says it is the "native" resolution of this monitor. In monitor menu in information section it says: "HDMI 1024x768 H 48.4kHz V 60.0Hz" plus model data.

I manually added a custom 1920x1080 resolution like shown in image but when i set it the quality is bad.
The problem isn't that certain resolution displays faultlessly, just that i don't have an option to set one (which i should and sometimes i have done, e.g. on Wednesday evening i could set either 1920x1080 or 1920x1200 and both worked well in excellent quality for hours).
Rectangle Font Parallel Screenshot Number

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