2nd monitor W2072a suddenly has no signal

2nd monitor W2072a suddenly has no signal, tried switching cables & rebooting but box comes up states Scanning then No Signal. I desperately need help since the only way I can use a computer is with 2 monitors due to a disability

Hi ToniClark,
Welcome to the HP Forums! I see that you have issues with your secondary monitor. What happens if you disconnect the first monitor that is currently work and just hook up the W2072a by itself? If it works then we know it is something with your computer system and if it still fails then their could be a problem with the monitor.
Thank you,
Please click “Accept as Solution ” if you feel my post solved your issue.
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Thank you,
BHK6
I work on behalf of HP

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IPhone suddenly has no signal.

I have a iPhone 3g 8GB on 02-UK. It was working fine until about 10am GMT this morning. After trying to send a text it failed and I received a no signal service message in the top left. I thought ok, maybe the tower died or its restarting or something so left it until I was leaving work at 5pm. Still it had no service. I have rebooted the phone both software and hard resets, restored and cleaned all settings. Even tried to wipe the phone and restore to Apple's Stock 3.0.1 (I deleted the IPSW I had in my iTunes Library folder to ensure iTunes re-downloaded one. Still it shows no signal. The phone popped up to say waiting for activation but 30 mins on nothing has happened. I have tried 3 different sims in it which I know to have worked beforehand but now all of them just have the tiniest amount of signal and 2 show the 3G symbol. All calls fail and I have not received anything to either sim while they have been plugged into the phone.
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O2 has had 'problems' (as have all iPhone 3G networks) from time to time.
Changing SIMs is one of the worst things that you can do: it confuses the phone AND the network! Personally I would not mess with anything at .ipsw level unless I really had exhausted all other options AND had tried a Genius without success - there is so much 'good' advice out there, but little 'useful' advice, don't you feel?
Why not try an Apple Store and let them 'sort you out'?
Good luck!

Lost video on 2nd monitor after 10.10.3 update

Howdy. Upgraded my main mac pro to Yosemite 10.10.3 this morning and find that video on a 2nd monitor (verified good) has gone away. It seems to be a driver issue. This is with a Radeon 5770. It is still driving my main monitor without any problem, however, the 2nd is not getting signal and does not show in system profiler.
The monitor and cable/adapter chain has been checked and verified all the way to the card.
Any ideas?

Hi Eric.
Thanks for providing the easily accessible link with standard OP information. I have reset PRAM and undergone all other hardware and software checks. There is nothing wrong with the cabling, card, or monitor.
I can boot into earlier versions of the OS, going back to 10.5. ALL except for 10.10.3 produce NTSC video on my Radeon 5770 as a 2nd monitor. Something about the 10.10.3 update broke the 2nd display. The problem is specific to 10.10.3 and no other versions of the OS.
I suspect a bug was introduced regarding multiple-display setups (I have 3) with 10.10.3, OR the feature set for multiple displays was changed without notice. However, I can't seem to find a way to connect to apple support to investigate the issue without paying a service fee for the privilege. I was really hoping I could get some actual insight into the issue, as I'm familiar with all standard troubleshooting and software issues. I have, after all, but using Macs since 1987...
Cheers.

My Mac Pro (2006) has suddenly stopped sending signal to the display monitor.

My Mac Pro (2006) has suddenly stopped sending signal to the display monitor. It coincided with plugging in an Epson printer via usb - while the system was running. Pretty dumb maybe? Could I have damaged the video card? Anyone ideas? Thanks

Howdy Le Batch,
I was looking into the issue you are seeing here, and came across a helpful article for this specific situation. It's named Apple computers: Troubleshooting issues with video on internal or external displays and can be found here:
When using an external display be sure to check the following:
If you're using an Apple notebook, confirm the AC power cable or adapter is securely connected to the computer and the cable providing power to the display is also secure. It is always good to have your notebook connected to AC power when an external display is in use.
Confirm display adapters are fully seated in their respective connections and that they are supported models and for the computer and display. Refer to these articles to assist you with adapter compatibility and further configuration information:
Monitor and Display Adapter Table
About Mini DisplayPort to HDMI adapters
Apple Mini DisplayPort adapters: Frequently asked questions (FAQ)
Thunderbolt ports and displays: Frequently asked questions (FAQ)
Remove all display cable extenders, KVM switches, or other like devices and retest to determine if the issue is resolved.
If more than one video adapter is in use—or "daisy-chained"—troubleshoot by using only one adapter.
Example: A mini DisplayPort to DVI adapter connected to a DVI to HDMI adapter is an unsupported configuration because there is a series of adapters in use.
If available, try using a different display and or adapter (or use a different connector by using DVI instead of VGA, for instance).
Reset the system
You can reset the Mac's parameter RAM and SMC.Reset the resolutionStart by resetting the Mac's parameter RAM. If the display does not come up, was previously set to an unsupported resolution, and still results in no video:
Start up in Safe Mode.
From the Apple () menu, choose System Preferences.
Choose Displays from the View menu to open the preferences pane.
Select any resolution and refresh rate that your display supports.
Restart your computer.
Regards,
Sterling

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I'm using Macbook Pro1.83Ghz (1st gen) with Sony "SDM-M81" as 2nd monitor. It work fine with Leopard. After upgraded to snow leopard, successfully, The monitor showed that there was no signal. Even i try to change the resolution, it didnt work.
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I'm having the same issue.
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I read on another forum about driver problems, but this can't be the case for everyone?

Windows 10 shows the 2nd monitor has 1920x1080 but actually it is 50% less around 1080x840

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If you won't lose anything and if it is not a big hassle, I would re-install.
Mainly because Win 10 TP is, after all, a beta OS. Too many possibilities of bugs and glitches. It is better off to reinstall.
The latest build 9879 has a ISO download link. Use the ISO and burn it to a bootable DVd. Then use the DVD to do a clean reinstall.
http://windows.microsoft.com/en-us/windows/preview-iso-update?os=win10

Windows xp extended desktop not showing up on 2nd monitor all of a sudden

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Try this:
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2. Press Fn and F7 until BOTH Monitors are Shown.
3. You shouuld be able to select Either or Both Monitors in Sequence.
I replaced my BIOS Battery and had the same problem.

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Thanks! Taylor

hmmm...
i can move the mouse freely between the 2 monitors, going above the menubar to the ext. monitor.
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Adding 2nd monitor

I am trying to hook up 2nd monitor to my desktop. It has 2 dvi plugs. I have dvi to vga adapters on both plugs . The top plug puts out signal to monitor but the bottom does not. I swiched monitors to the plugs and still just the top plug will support a monitor. Any idea if the bottm plug is a dummy plug and needs a video card or how would i find that out?

Thank you for the additional information.
Both DVI ports can be used at the same time:
*Integrated video is not available if a graphics card or an Intel processor ending with “P” is installed.
A processor that supports graphics is required for integrated graphics to be enabled.
Integrated graphics: Intel Graphics Media Accelerator HD (DX10.1)
Either integrated graphics or the PCI Express x16 slot are usable at one time; they are not usable concurrently.
Use of both DVI ports at the same time is supported.
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If you want to increase the performance of your system you could install a dedicated video card. This would require a power supply unit (PSU) upgrade, also.
Signature:
HP TouchPad - 1.2 GHz; 1 GB memory; 32 GB storage; WebOS/CyanogenMod 11(Kit Kat)
HP 10 Plus; Android-Kit Kat; 1.0 GHz Allwinner A31 ARM Cortex A7 Quad Core Processor ; 2GB RAM Memory Long: 2 GB DDR3L SDRAM (1600MHz); 16GB disable eMMC 16GB v4.51
HP Omen; i7-4710QH; 8 GB memory; 256 GB San Disk SSD; Win 8.1
HP Photosmart 7520 AIO
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Pavilion Slimline 400-034 Windows 8 not detecting 2nd Monitor

Hello, I have a Windows HP computer, and I recently bought a 2nd monitor for my birthday, link click here. I have the same monitor for my first, and that works perfectly fine, when I bought the 2nd monitor, I realized I have a different port, and it's not a DVI-I, it's a DVI-D. So I bought a VGA to DVI-D connector, so I plugged my VGA into the connector and then plug the DVI-D into the tower. I turned on my computer, and the 2nd monitor wasn't detected, the DVI-D connected one, but the first one was. The monitor was set into mode auto, so it detected any working inputs, DVI, VGA, HDMI, and another. The 2nd monitor works thought while into the DVI-I port, but neither work in the DVI-D port. Any help (: ??

Here are the specs for you HP Pavilion Slimline 400-034 Desktop Computer and here is the user guide for your Insignia™ - 24" LED HD "NS-24EM51A14" Monitors. Based on the specs of your computer, it has one DVI-D (digital only) output and one DVI-I (digital and analog) output as shown below;
#3 - DVI-D (digital only) #4 - DVI-I (digital and analog)
According the user guide for your Insignia monitors... VGA, DVI-D, and HMDI inputs are available. Using a passive DVI-to-VGA adapter will work on the DVI-I port because it supplies both digital and analog signals. Using a passive DVI-to-VGA adapter will NOT work on the DVI-D port because it only supplies digital signals. Please remove both DVI-to-VGA adapters and VGA cables and replace them both with DVI-D cables. You can purchase these cables online and at most local retail store such as Fry's, Best Buy, Walmart, Target, Radio Shack, Staples, Newegg, Office Depot, etc. Once you have purchased two DVI-D cables, please connect your hardware as follows;
Computer ---> DVI-D cable ---> Monitor #1
Computer ---> DVI-D cable ---> Monitor #2
If you have any further questions, please don't hesitate to ask.
Please click the White KUDOS "Thumbs Up" to show your appreciation
Frank
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Can't run flash player in full screen on 2nd monitor

Hi all! I have a laptop with dual video displays. The main
display is the laptop's LCD and the 2nd display is a 19" LCD
connected via VGA cable. I want to let a Flash movie loop endlessly
on the second monitor while I continue to work on the laptop. When
I drag Flash Player 8 over to the 2nd monitor and start the movie,
I can hit maxmize and it will take up the entire 2nd montior as it
should...with the file options and boarder around as expected. I
then hit Ctrl-F to go full screen and it snaps directly to the
laptop's primary monitor. I tried it at work where my desktop has 2
displays and the same thing happens. I need to force Flash player
to run full screen on the 2nd monitor and cannot find a way to
accomplish this. Any help is appreciated because it's driving me
nuts. I can always make the external monitor my primary but then
the start button and all my icons move there too and that is not
acceptable. Thanx!

Seriously? No one has any thoughts about this? I can't
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MacBook Pro performance issues w/2nd monitor and FCP7

I have this MacBook Pro bought brand-new in January 2010:
Model Name: MacBook Pro
Model Identifier: MacBookPro5,2
Processor Name: Intel Core 2 Duo
Processor Speed: 3.06 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 6 MB
Memory: 8 GB
Bus Speed: 1.07 GHz
and until today had never attached a second monitor to it. Today I hooked up my Samsung 24" to do some dual screen editing in Final Cut 7.0.3. I was unable to play back my video at full speed in the second monitor, and after a few seconds of skippy playback I'd get that error message about unable to play back video at full speed and to check my RT settings. I was using a Mini DisplayPort to DVI adapter. My computer has no issues playing the video in the laptop's monitor at any resolution and any quality settings (I've never changed the RT settings or anything else in the menu ever but I tried every combination this time). I then tried using my TV as a 2nd monitor with an HDMI adapter. Same performance issues. I then tried my friend's newer 13" MBP 8,1 and it performed flawlessly with the same project & footage. I feel like my $3,000 computer should outperform a $1,200 one even if mine is a year and a half older. Any advice?
Chris

Wow, you posted this perfectly to coincide with an identical problem, albeit using Logic Pro 9.1.5 rather than FCP.
Last week, I purchased a 23" external monitor to use alongside my "flagship" 2011 15" hi-res, 2.3 i7 Macbook Pro with 8Gb of RAM.
It is connected via a mini-DVI to D-sub analog (not that that should matter?) and all appeared fine.
The first issue I had was with my MBP's fan now running CONSTANTLY, when I have the second monitor attached. Even when the machine is completely idle.
When using the machine to record audio, this is a fairly hefty problem and not something I had anticipated - indeed why would I anticipate such a thing?
What is far, far worse though is that over the last few days I have had repeated problems with performance drop-outs and errors in Logic and I have trying to fathom out why. Realising that the only major system change made, was the above monitor connection, I ran some tests.
I restarted my MBP, no other apps were running and with my new 23" monitor attached acting as main display with MBP built in display on as secondary
I loaded up a fairly demanding Logic project which was hitting 40% to 60% CPU usage when using the built in MBP display last week
I ran activity monitor and had CPU usage history open
The above project now repeatedly overloads and playback halts in a given 8 bar section - with CPU at 80% most of the time
I disconnected the external display, no shut down, I just let the machine switch to the built in 15".
Started the same project, the same 8 bar section and hey presto - CPU usage back down to 40% to 60%
The above was reflected in the CPU usage history with the graph showing CPU use down by about a half, when running this Logic project WITHOUT the external display.
There is a very useful benchmark Logic project that has been used as a test by many users to gauge Logic performance on given Apple hardware.
The project has about 100 tracks pre-configured with CPU intensive plugins, designed to tax the CPU.
The idea is that you load up the project with tracks muted, press play and then unmute the tracks steadily until Logic us unable to play contiunously because of a system performance error.
On my MBP, with the external monitor NOT attached, I can play back around 50 of the audio tracks in this benchmark project.
With the monitor attached, I can get about 22 tracks playing.... which is actually a far worse a performance drop (-50% I think!?) than with the first example!
I did also try with just the external monitor attached and not the MBP display and performance was about 10% better than with dual monitors - so still extremely poor, to say the least.
This machine is the flagship MBP and has a dedicated AMD Radeon HD6750 GPU which should take care of most if not ALL graphics processing - I mean it's capable of running some pretty demanding games!
Putting aside the issue of constant fan noise, there is no reason AT ALL, why using an external monitor should tax the i7 CPU this way - it's not as though Logic is graphically demanding... far from it.
I am on 10.6.8, Logic 9.1.5, all apps up to date via "Software Update".
I will of course, be contacting Apple...

Why does a DVI or VGA look better than HDMI for 2nd Monitor

Why does a DVI or VGA connection for a program monitor look better than HDMI. I've tested this on several systems with CS5x and CS6. The full screen output from premiere definitely looks worse with HDMI.
I can often see visual differences with the Windows GUI as well, over sharpening of text and lines, harsh rendering of gradients. It looks like a VGA signal displayed on a television.
I've looked at the NVidia stetting and it appears to be set to 1920x1080 at 60hz either way, DVI or HDMI. On one Acer 20 inch monitor the was VGA, HDMI, Composite, Component, and Digital Tuner, but no DVI. The program monitor has always looked blah from the HDMI. So I recently switched the connection to a DVI to VGA adaptor, and now the video looks so much better.
Any thoughts or explanations?

Just because the monitors accept a 1080P signal doesn't mean their native resolution is 1920x1080. At 20 inch they very likely can scale that signal down to the native resolution of the panel which may be 1600 x 900 or another resolution that is 16 x 9 resolution. That scaling can be done by the GPU or firmware on the Monitor depending on the video driver options and the firmware options. That scaling is also the most common cause to text and icon blurriness you are talking about. As an example there are Pro monitors that accept a 4K signal but scale it down to 2.5K or 2K on the actual panel. You might try going into your video card settings such as Nvidia control panel and look for the scaling options. Select GPU scaling and see if the preview is better. If that doesn't work select no scaling and see if it's better if the monitor firmware handles the scaling.
Eric
ADK

2nd Monitor won't work

I bought a Pavillion p6210f last week with Win7 loaded to replace my Dell/Vista. I was using two monitors with a VGA port and DVI port on the old PC, so I tried plugging in the same on my new HP and the DVI would not fit. In examining the pins I found that, althought the Manual said DVI, but the plug has the pin/bar arrangement of a DVI-D. So, I bought a VGAto DVI-D adapter and everything plugged in snuggly. All pins and bar appear a match.
But, it won't work. This is what is showing
NVIDIA nForce Serial ATA Controller HP RC Mirror Driver [Display adapter]
NVIDIA GeForce 9100 [Display adapter]
Acer P241W [Monitor] (24.0"vis, s/n LB4040014320, March 2008)the one working monitor....
After hours with the 800 support and hours of reversing the two Acer monitors, the DVI-D port is simply dead. Anything plugged in to the VGA works fine, anything and any combination plugged into the DVI-D and cable switching etc. the 2nd monitor is not even recoginized. The NVIDIA control panel doesn't recognize it. The amber power light just stays that way and nothing ever flashes on the 2nd screen. That is, it is the same as not plugging in at all.
I was less than pleased when 800 tech and supervisor suggested I take it to a repair center. A week old? I have put way too much setup and data transfer into the new HP to go back to the retailer for a replacement.
Techs didn't know, but could there be a DVI-X with the same pins that also fits

Eldric, did you update to the latest video driver from nVidia? It sounds to me like a driver problem. Update and let us know if that solves your problem.
Signature:
HP TouchPad - 1.2 GHz; 1 GB memory; 32 GB storage; WebOS/CyanogenMod 11(Kit Kat)
HP 10 Plus; Android-Kit Kat; 1.0 GHz Allwinner A31 ARM Cortex A7 Quad Core Processor ; 2GB RAM Memory Long: 2 GB DDR3L SDRAM (1600MHz); 16GB disable eMMC 16GB v4.51
HP Omen; i7-4710QH; 8 GB memory; 256 GB San Disk SSD; Win 8.1
HP Photosmart 7520 AIO
++++++++++++++++++
**Click the Thumbs Up+ to say 'Thanks' and the 'Accept as Solution' if I have solved your problem.**
Intelligence is God given; Wisdom is the sum of our mistakes!
I am not an HP employee.

How can i use my tv as the 2nd monitor

hi, how can i use my tv as the 2nd monitor, for example pull a video from desktop to tv for windows7, the computer is hp omni 120 all in one. because i have a cable for it that connects to the tv but i dont know how to connect the pc to the tv. i tried to go on the 'change screen resolutions' but that didnt help. thanks

Hi,
Here is it specs:
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&dlc=en&docname=c03343048#N1221
You can only see:
Front:
1 - Screen area
2 - Microphone array
3 - Webcam camera
4 - Stand
5 - Speakers
Back:
1 - Optical disk drive (actually right)
2 - Stand
3 - Kensington lock slot
4 - Power button
5 - Memory card reader and other I/O on left side
6 - Motherboard back I/Os (specific I/Os are model dependent)
7 - Activity indicator
8 - Power connector
9 - LAN (ethernet)
10 - Four USB 2.0 ports
11- Audio port (actually left side)
Left:
1 - Hard drive activity indicator
2 - Memory card reader activity indicator
3 - Memory card reader
4 - Two USB 2.0 ports
5 - Microphone jack
6 - Audio port
Right:
1 - Optical disc drive
The only hope is "6 - Motherboard back I/Os (specific I/Os are model dependent)" area:
Please check area 6 above. As mentioned in my previous reply: Most likely your machine has no video out port.
Regards.
BH
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2nd monitor W2072a suddenly has no signal

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