HDMI (High-Definition Multimedia Interface) is a widely used interface for transmitting audio and video signals between devices and displays. Many PCs now include the ability to output audio/video directly to an HDMI port.

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SyncMaster 971p Connection Issue

I acquired a 2007 Samsung SyncMaster 971p, and have been trying to connect it to my computer. My laptop only has a HDMI port, and the monitor a DVI one, so I bought a HDMI-DVI cable thinking it would ...
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21 views

Frequency out of range

I bought LG 24" LED monitor (24MP47HQ) for my HP desktop (Elite 8200 SFF). If I increase the resolution to 1600*1200 or 1920*1080, then it says 'Frequency out of range' How can I increase the ...
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66 views

Computer does not display output to the screen

I am writing this post with connection to the new computer which I had bought recently. When I have plugged everything and turned on computer, then it is looks like running (light + DVD ROM are ...
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1answer
79 views

Tv shows lower res than PC is outputting

I just upgraded my graphics card, on the old one I used a dvi-I to vga adapter to my tv, however if i tried using an HDMI cable I got the proplem where the tv would show a pixzelated screen, I assumed ...
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34 views

Pc will not boot - power over HDMI?

So i encountered the strangest issue with my PC today. I was using it last night, i shut it down as normal, then this morning, nothing, checked power leads, tried to remove power hold in power for 30 ...
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51 views

DVI to HDMI/DisplayPort with 2560x1440

I am having two 2560x1440 screens with HDMI, DisplayPort and mini-DisplayPort inputs (2x Dell UltraSharp U2715H). My goal is getting them to work with the following motherboard at their native ...
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61 views

HDMI to DVI Dual Link via displayport - Apple TV 4 to apple cinema display

I have been struggling with this one for the last two weeks. I have a new Apple TV (4) which I bought thinking it would be compatible with a 2010 DVI Apple Cinema Display 30 inch. Initially I just ...
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23 views

3rd display keeps disconnecting, 1 laptop display and 2 external displays

I have a laptop running Windows 7 with, I have Intel HD Graphics 400 and an Nvidia GeForce GT 630M, the laptop has an HDMI slot and a VGA slot. I'm trying to run two external monitors and the laptop ...
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29 views

Tower PC no longer connects to TV via HDMI cable

I have a PC connected to a TV via HDMI. It was working just fine until one day I turned both on and it wouldn't give me a signal. The problem is with the PC but I haven't managed to diagnose it. I ...
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36 views

TV screen turns off/flickers when connected to computer through HDMI

My computer is connected to three displays: Cable: DVI - Display: 27" computer monitor Cable: DVI-HDMI - Display: 24" TV Cable: HDMI - Display: 50" TV (routed through an Onkyo 5.1 surround sound ...
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1answer
36 views

Monitor blacks out randomly

I have 3 monitors connected to a Dell Display Link device that has 2 HDMI and one Display Port connections. The 3 monitors are almost identical : 24" Asus HDMI, only one having both HDMI and DP ...
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1answer
26 views

Connect LG 25UB55-B to Dell XPS L502x

I'm going to buy LG 25UB55-B monitor, which will be connected to my Dell XPS L502x notebook. But after some investigation I'm a little bit confused and unsure if it will work. There are several ...
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6 views

Stick media player turns monitor off

I bought a stick media player with HDMI output. I used an HDMI>DVI-D adapter to plug it into a Benq monitor (with DVI-D slot, I already tried DVI-I, which I had to refund, it did not fit). The monitor ...
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35 views

Automatically change default playback device when HDMI activated/deactivated?

I've rigged up Cortana in Windows 10 to do things like turn lights on and off. The problem is, when the TV's not on, and/or the receiver's not turned into the HDMI channel the PC is plugged into, I ...
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24 views

blurry/bad quality external screen (samsung) launched to dell n5110 q15r

Hi guys, I have a problem. I bought an external screen (samsung mw2030) and I pluged it to my dell n5110 q15r. The main problem is blurry quality and white persistence around the font, moreover ...
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82 views

Can I run (5) 2560x1440 monitors on a single Radeon R9 290X?

I have a XFX Radeon R9 290X Model R9-290A-EDFD. It has (1) DisplayPort 1.2 (Max 4096x2160), (2) DVI-D (Max 2560x1600), and (1) HDMI (Max 4096x2160) ports. I just purchased (4) Acer K272HUL 27" WQHD ...
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47 views

4k Monitor doesn't give me the option for 4k resolution

I have an Acer XR341CK 4k monitor and a XFX Radeon r9 280x GPU. I have my monitor hooked up with an HDMI cable from the monitor to an adapter to go to a mini Display Port on my GPU. For some reason ...
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2answers
73 views

Mirrored display, mouse cursor missing

I have an Ubuntu 14.04 connected via HDMI to a TV. After the computer comes back from suspend the mirrored desktop on the TV display sometimes doesn't show the mouse cursor. The only way I found to ...
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1answer
41 views

LCD screen to HDMI or VGA

I have an old laptop with a completely working LCD screen, and am wondering if there is any way for me to turn it into an external monitor by converting the flat cable to a VGA or HDMI output. ...
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13 views

Brainbreaker. Dual gpu dual monitor, one monitor flashing only shows when at 30mh, normally@60, capable of 75hz

So, I have dual radeon sapphire 7850 2gb. One hdmi to 50'' tv, other card is hdmi to asus 24'' monitor with 1920x1080 75Mhz capable monitor. Updated to latest driver/software the other day ...
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50 views

laptop screen goes blank when HDMI monitor plugged in on Debian Jessie

On my HP ENVY dv7 Notebook PC when I plug in an external monitor, the laptop screen goes blank. lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics ...
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1answer
76 views

Is there a video quality difference between a Mini-DisplayPort-to-HDMI conversion and a USB-to-HDMI conversion?

I recently bought a laptop (Dell XPS-13), which comes equipped with only a Mini-DisplayPort for video, which is not compatible with most displays I have to use (university projectors). USB-ports are ...
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72 views

Are 1080p monitors better than a 4k monitor?

Ok so I own an asus 144 mhrz 1 ms response time monitor (for gaming) and i was able to stream a 4k video on it, keep in mind this is a 1080p monitor and it looked pretty good. So why do people even ...
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15 views

Setting up a two different views using a laptop and a monitor

I have a laptop that I connect to a pc monitor, at the moment I just view whatever is on the laptop on the monitor but I'd like to have multiple views so that I can type code on the monitor but view ...
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19 views

Change actual HDMI output resolution, Intel Graphics

So I can change the resolution (and clone or extend) through control panel, but it still always outputs 1920x1080 on my tv with the size of the desktop just changing in size within that. Does anyone ...
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2answers
60 views

HDMI turns off two monitors

Setup: 2 monitors [DVI] 1 TV [HDMI] Card: Ati Radeon 6850 OS: Windows 10 Situation: When I plug the HDMI into the video card my monitors turn off. Switching one of them off does not make a ...
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54 views

Dell monitor working with one HDMI cable, but not with others?

I have a Dell U2312HM monitor connected to a Dell Latitude E7440 laptop via a HDMI-DVI cable. I'm running it on Ubuntu 14.04. I had an issue with the monitor blinking from time to time (reported ...
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60 views

No HDMI signal with i3 + Denon amp

My setup used to worked perfectly : Windows 10 + i3 4330 --HDMI--> Denon amplifier --HDMI--> Samsung TV One day, I got a power outage. But once it went back, my HTPC stopped sending signal to my ...
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1answer
408 views

Does Chromecast or Amazon Fire TV Stick work with a computer monitor?

I'm interested in knowing whether these media streaming sticks work with regular PC monitors (with HDMI ports), and not just HDTV. I couldn't find it in the product descriptions on their websites. Has ...
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27 views

USB 3.0 docking station dual display poor performance

I got a plugable USB 3.0 docking station in order to set up my laptop with dual monitors. The problem is, the display performance of the monitor hooked up to the docking station via an HDMI cable is ...
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20 views

Win 8.1- My second monitor stop working after the boot

I tried to use a screen (a TV actually) on my laptop, it worked for few seconds and then it's not recognized anymore after the bootup. I tried to use another screen on my laptop and it worked well. I ...
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1answer
42 views

Windows audio stops working when playing games through a receiver

I have a Windows 8 desktop with two nVidia GeForce 680 GTX video cards. When I connect the video card to a TV via HDMI the audio through HDMI works fine all the time. When I connect the video card ...
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16 views

Win 8.1- second monitor stop working after boot

I tried to use a screen (a TV actually) on my laptop, it worked for few seconds and then it's not recognized anymore after the bootup. I tried to use another screen on my laptop and it worked well. ...
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1answer
66 views

How to select which sound output device to use for /dev/dsp OSS emulation?

I have a system with two sound devices and am using sound via HDMI out. This is Card 1, Device 7, Subdevice 0, so I set in my /usr/share/alsa.conf: defaults.ctl.card 1 defaults.pcm.card 1 ...
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60 views

Acer X193W monitor keeps displaying “no signal” after connecting it to laptop's HDMI port

I've had a 19" Acer X193W monitor lying around for a while now since my desktop PC crashed, so today I decided to have the monitor as an external display for my laptop. I went out to get an HDMI to ...
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27 views

I'm using a TV as a monitor. Why are my resolution choices so limited when the TV supports more?

I am trying to use this tv as a monitor. As you can see, this tv supports 1920x1080 full HD. However, when I plug it into my Windows computer (which can easily support this, it supports it on other ...
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1answer
20 views

How to create any application window that should not pass to projector screen on mac?

I want to know there is any way to write a application on mac, and that application window should only visible on screen even that system connected to projector screen. For Example: If i write some ...
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19 views

Monitor refresh rate dropped

Today I bought HDMI cable to connet my tv as a "secondary monitor" to my pc. But after I've plugged it in, the refresh rate on the main monitor dropped significantly. Any info I find in the AMD ...
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1answer
70 views

Why isnt my laptop connecting to my external monitor?

Alienware M17X-R3 Windows 10 (this might be the problem...) DVI-D cable HDMI to DVI adapter ACER external monitor model no. G236HL For some reason, my laptop won't display anything on the external. ...
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25 views

HDMI splitter (dual screen)

I am looking for a way to connect two monitors to my laptop. I was thinking of having an HDMI splitter and then two HDMI to DVI cables to my screens. Does a HDMI splitter which can split the display ...
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20 views

HDMI Audio device no longer appears as playback device

After a windows update connectiong my television to my notebook with an HDMI cable does not reproduce sounds as it was always doing. The sounds now come only from the notebook speakers. Looking into ...
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72 views

Permanent Blank Screen after lid close? -Ubuntu 14.04

Can you guys be of assistance? Ubuntu Newbie here. Hp M6 Envy laptop I closed my lid to move with my laptop and by the time (10 mins) i opened it the screen was totally blank not black , blank. I ...
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1answer
69 views

Weird lines on screen – possibly graphics card issue

When Windows boots to the login screen, my whole screen goes fuzzy with lines and weird pixels all over moving about looking glitchy. When I updated my graphics card to the default "Microsoft Basic ...
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20 views

HDMI splitter making the resolution go weird

I bought a hdmi splitter in hopes of connecting two screens to show the same picture. Alone, they connect good, but when I use the splitter, I get an image but its in forced 640p and I can't seem to ...
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1answer
46 views

Does Windows 8 output different hdmi signal?

So i bought this http://www.kanex.com/xd Their old website used to advertise that it would work with a PC (in the Q&A section). I bought it so that i could send my PC signal to my IMAC 27" late ...
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38 views

HDMI out on a tablet doesn't work with a 17" LCD monitor

I have a problem getting HDMI out of my tablet playing nice with video inputs of an old 17" monitor. Monitor in question is this, and the tablet is this. Monitor works just fine when connected to a PC ...
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1answer
122 views

Sound Output Through 3.5mm With HDMI Connected

I have two monitors (ASUS VH238-C) and I am trying to get sound to play through both of them. The current setup is as follows: Main monitor is connected through HDMI. Second monitor is connected ...
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15 views

Radeon 7870 ignores HDMI connection (Windows 8)

I have a steambox built on top of Radeon 7870. The problem is, it doesn't recognize HDMI connection anymore - i've successfully projected it's Windows onto my Mystery TV for once (i want to emphasize ...
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280 views

2560x1080p not working on 21:9 display in Win10 Geforce 9500 GT HDMI

The title pretty much sums it up. I have a GeForce 9500 GT card (it has one DVI and one HDMI connector). According to its specs it should go up to 2560x1600. Now I tried to connect to an LG 29UM57 ...
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1answer
101 views

hdmi to thunderbolt in for macbook

The goal: Get apple tv to play on my external display. The components: Apple TV (4th gen) Macbook Pro (mid 2015) w/ports 2x thunderbolt, 2x usb, 1x hdmi, 1x audio out / mic in. Apple Cinema ...