Notice to those with DVI fix!!

Do NOT use Switchres or any other utility and bump your refresh rate below 60 Hz. It may seem to be working, but in time, you will notice the screen will start to split into segments. This happens as you are going below the reccomended refresh rate from the manufacturer, and are starting to damage the circuit on your LCD.
A more REAL aproach to a safer fix, is to set the "porch" to a much lower value of something like 20-40, instead of the default hundreds.. Porch is blank black borders, but was used for CRTs, an LCD in which doesn't need, this reduces how much data is transmitted. And no, if you set to low, the porch can corrupt the screen also in segments, but atleast it won't actually harm your LCD, but messing with refresh rates will (as it's the vertical sync...)

I have red/green pixels and line noise on my screen...which is a Dell 2001fp.
How is the porch setting changed?

Similar Messages

Using External monitor with DVI kills wireless connectivity

I recently purchased a BenQ G2400WD 24" 1920x1200 monitor, for use with my May 2007 GMA 950 2.0Ghz. Macbook.
Upon receiving the monitor, I immediately plugged it in to my Macbook, using the Mini-DV to VGA adaptor I already had, for use with projectors. The monitor was good, but a bit blurry and not too sharp, due to the analog signal. So I ordered a Mini-DVI to DVI adaptor. When it arrived, the improved picture quality was immediately apparent.
However, as time went on, I noticed my wireless connectivity was getting terrible. Extremely slow Safari page load times, and upon going to Terminal and pinging my router, I would often get response times of 21000 milliseconds, or worse! I did a lot of research, on router firmware, on wireless connectivity, etc., but to no prevail. Then, on a whim, while continually pinging my router, I removed the DVI adaptor from my monitor. The ping instantly dropped from tens of full seconds to just a stable 0.4 milliseconds! Using my VGA connection resulted in no worse wireless connectivity than without it, but upon plugging in DVI and stressing the connection a bit (i.e. downloading a large file), the connection went bonkers. The pings also immediately jump from 0.4 milliseconds to a range of 1-4 milliseconds, regardless of any "stressing".
I have done numerous research, including searching both here and on other discussion forums. It appears this problem with DVI connection is fairly common, but with no resolution so far. Any help would be great!
A few important notes:
-Both ends of both my VGA cable and my DVI cable are shielded.
-I have tried numerous channel changes of my router, to no prevail.
-While using DVI, EVERYTHING works well except the wireless. So the monitor isn't too demanding for my computer.
And I hope my thorough post didn't scare you away!

I have this same issue with the dvi and wireless disconnect. I am using a samsung 214T. I am glad to know i am not the only one seeing this, because it is kind of one of those things that is hard to believe. Anyway, I am also curious what kind of routers people have who are experiencing this issue. I am using a wrt54GL with tomato firmware.
Also, In addition to the disconnect, my picture quality on my monitor gradually degrades over time...starting with what looks like snow flecks. After waking from screen saver, sometimes it is full static. Turning off and turning back on the monitor clears the static away.
I can use another samsung 19in monitor with dvi without any problems.

Cant use DVI-D port with DVI-D cable from Pav 500-100a to HP W2207 monitor

I have a new Pav 500-100a factory standard with no mods. A HP w2207 monitor.
Currently connect fine with VGA to the DVI-D port with the adapter that came with the pc. I've setup Windows, updated to 8.1, put in my files from my old PC and all was well except video isnt that good.
I got a DVD cable form work but its a DVI-I cable. It took 5 mins before windows comes up and then whenever the background picture changed in the theme it hung for a few seconds. I read that I need a DVD-D cable which i purchasd today.
The packet says its a CL-DVI2M - DVI M/M 24+1 CABLE 2M. The tech in the shop says its a good calbe and will work fine.
When connected and I power up I get teh hp logo and rolling dots then it goes blank.
I reconnect teh VGA cable and its all fine - using the VGA to DVI adapter.
I ran msconfig and turned of safe boot - restarts and comes up fine in safe mode. I set the resolution to 1280x800 and restarted and reconnected the DVI cable - blank again.
If I put the VGA cable back in it boots fine. The monitor has been factory reset and seens the DVI connection but Windows remains blank. Also tried booting first with no cable - connect teh DVI and the monitor remains in sleep - power reset teh monitor and still blank also shows no DVO conenction.
I fI power up with DVI connected I can get to BIOS, and i see the HP logo and dots as Win 8 starts.
I dont know what else I can try. I have no other usable video card with DVI
Any ideas out there?
Pls help - Steve
Although I am an HP employee, I am speaking for myself and not for HP.
This question was solved.
View Solution.

Hi Steve,
Only connect one active video cable to the monitor and do not use any adapters.
Use a flashlight and examine the DVI connector on the monitor. Which DVI type is it?
Some of the older HP monitors have DVI issues so you might want to check with HP Support and see if you have one of those models.
An older post a long time back indicated that audio also had to be feed to the monitor (claimed by a poster). If this is indeed true then it's a monitor design flaw. So, you could use a native HDMI cable and test out that claim.
HP DV9700, t9300, Nvidia 8600, 4GB, Crucial C300 128GB SSD
HP Photosmart Premium C309G, HP Photosmart 6520
HP Touchpad, HP Chromebook 11
Custom i7-4770k,Z-87, 8GB, Vertex 3 SSD, Samsung EVO SSD, Corsair HX650,GTX 760
Custom i7-4790k,Z-97, 16GB, Vertex 3 SSD, Plextor M.2 SSD, Samsung EVO SSD, Corsair HX650, GTX 660TI
Windows 7/8 UEFI/Legacy mode, MBR/GPT

Does it have a feature that supports management with accounts, fixed IP, VLAN ?

I'm not quite familiar with those advanced features if it does exist as the fact that i've been primarily using cheap and unknown AP products for years :D I'm planning on upgrading my APs for personal reasons. Could anyone tell me does it have a feature that likely supports management with accounts, fixed IP, VLAN? What is it called and which product could fit my needs?
Thanks.

My name Eric Moyers. I am an Engineer in the Small Business Support Center.
Thank you for the question. Currently all of our Small Business Wireless Access Points support Management accounts, fixed ip's and vlans.
Here is a link for some model comparisons.
http://www.cisco.com/c/en/us/products/wireless/buyers-guide.html
http://www.cisco.com/c/en/us/products/wireless/small-business-100-series-wireless-access-points/models-listing.html
http://www.cisco.com/c/en/us/products/wireless/small-business-300-series-wireless-access-points/models-comparison.html
http://www.cisco.com/c/en/us/products/wireless/small-business-500-series-wireless-access-points/models-comparison.html
If you have any other questions or some specific questions, I am most happy to answer them. You can repost here or if you mouse over my picture you will see my email and can email me directly.
Eric Moyers
.:|:.:|:. CISCO | Cisco Presales Technical Support | Wireless Subject Matter Expert
Please rate helpful Posts and Let others know when your Question has been answered.

Startech USB3SDOCKD with DVI

Hi,
I have Arch running on a Dell XPS 13. Works great! I've got a Startech USB3 dock with DVI output. It comes with a driver for windows and mac. More info here.
http://nl.startech.com/Kaarten-Peripher … USB3SDOCKD
Network is working, audio is working USB3 is working. I would also like to use the DVI output. From 'lshw' i have the following info about the dock
*-usbhost:0
product: xHCI Host Controller
vendor: Linux 3.17.3-1-ARCH xhci_hcd
physical id: 0
bus info: usb@3
logical name: usb3
version: 3.17
capabilities: usb-3.00
configuration: driver=hub slots=2 speed=5000Mbit/s
*-usb
description: USB hub
product: DU3200 3.0 Dock
vendor: Goodway
physical id: 1
bus info: usb@3:1
version: 31.98
capabilities: usb-3.00
configuration: driver=hub maxpower=8mA slots=4 speed=5000Mbit/s
*-usb
description: Audio device
product: USB3.0 Video Dock
vendor: DisplayLink
physical id: 1
bus info: usb@3:1.1
version: 5.07
serial: 000800110015818
capabilities: usb-3.00 audio-control
configuration: driver=cdc_ncm maxpower=8mA speed=5000Mbit/s
Does anybody have any idea how to fix this?

mmm kinda figured it out... DisplayLink with USB3 is not really supported
more info here https://wiki.archlinux.org/index.php/DisplayLink

Convert decimal to binary with a fixed length

Hi, I need to write a program that converts a decimal number to binary with a fixed length (say 5), for example, decimal digit "0" -> binary number "00000". I try Integer.toBinaryString(), but it will just cut off the leading bits, so I wonder how to let the conversion happen, anyone can help me with that, thanks in advance.
mckie

Daiyue_Weng wrote:
Hi, I need to write a program that converts a decimal number to binary with a fixed length (say 5), for example, decimal digit "0" -> binary number "00000". I try Integer.toBinaryString(), but it will just cut off the leading bits, so I wonder how to let the conversion happen, anyone can help me with that, thanks in advance.
mckieWhat do you expect it to do? When you limit yourself to 5 digits binary you can only represent 0 to 63 and you will loose anything not in those 5 digits.

USB Over Current Notice on G5 with 22" Cinema Display

USB Over Current Notice on G5 with 22” Cinema Display
I have owned a Dual 2GHz 64 bit Power PC since 2004. In that time, it has performed virtually flawlessly (as in having no major issues to speak of). Now, all of a sudden, I'll be working away and a warning window with a large white exclamation mark in a red octagon pops-up stating: “USB Over Current Notice. A USB device is currently drawing too much power. The port to which it is attached will be deactivated.” The window repeats itself cascading down 3, 4 or 5 times. This will continue to happen even when I’ve disconnected the only 2 USB devices attached to the computer, i.e., an Apple keyboard and a Kensington Expert Mouse (#K64325). Can anyone shed some light on this problem. It is very disconcerting (not to mention annoying). Does anyone have a solution for me (other than “junk the old beast”)? The fact is it still works great with both Final Cut and Pro Tools. Last but not least, I think I’ve narrowed the problem down to my 22” Cinema display. With the computer is attached to another monitor, I’ve yet to have that warning pop up. Is that possible? Could the display be the culprit?

Yes, in answer to your question (BDAqua) my Cinema Display has a ADC connector & USB ports on the back.
Your asking that question brings another to mind. If there are those, who have figured out, wherein the actual problem lies, i.e., with the monitors that have USB connectors built in, why didn't Apple just issue a recall on those monitors rather than having so much spurious and speculative information floating around out there on the internet?
I've just for the first time tuned in to these user forums and blogs only to discover that this is a wide spread problem that has been going on for years. (???) People saying, "Oh you just need to restart the computer" or "it's a bad mouse" or "bad keyboard" or worse yet, "it's your MOTHERBOARD!!!" when in fact it appears to be none of the above. Surely this is something that Apple became aware of long ago. Why didn't they correct the problem raher than letting it persist and making their buying public jump through hoops. I've been an Apple user for many many years. I've spent tens of thousands of dollars with that company from my first Quadra 950 to my MacPro -- I find this very disappointing.
In conclusion, all I can say is, I sincerely appreciate that you've taken the time to respond in an attempt to help. Thank you.

There are lots of issues in ios7 when those will be fixed for iPhone 5 . and can I retire my iPhone 5 to iOS 6 version ?

there are lots of issues in ios7 when those will be fixed for iPhone 5 . and can I restore my iPhone 5 to iOS 6 version ?

You might want to check out these two threads:
https://discussions.apple.com/thread/5325838?tstart=0
https://discussions.apple.com/thread/5369545?tstart=200
This topic has been discussed ad nauseum, they might give you some ideas on how to deal with the changes. Be sure to leave Apple your feedback on the matter: http://www.apple.com/feedback/ Good luck!

RV320 Connecting With Multiple fixed IP's

Hope someone can help me with this be warned I'm no expert.
We have 2 BT business broadband lines, 1 with a single fixed address and 1
with multiple fixed addresses both connected using Draytek Vigor 120's.
The line with the single fixed address works fine using PPPOE login from the RV320 as BT auto allocate the fixed IP.
What I can't work out is how to login to the line with the multiple IP's and set the Fixed IP as It doesn't seem to be auto allocated.
If I login using PPPOE I just get a dynamic allocated address.
If I set the connection as fixed IP there's no login options so doesn't connect.
I will soon need to use some of the fixed IPs so any help please.
regards Mark

I have a connection similar to your PPPoE with multiple fixed addresses and it works fine on a RV320. When I setup the WAN port to connect, the ISP assigns a specific fixed address to the WAN to route all the other IPs through. It would almost have to be that way since the WAN port is typically not on the same subnet as the addresses that are routed. Even if the RV320 does see them as on the same subnet it will work either way.
I would start by resetting the 320 to factory default and run through the wizard. The main thing is to enter the PPPoE info in the WAN settings and the 320 should dial in and connect to your ISP. Then in order to use the fixed IPs, I would use One-to-One NAT to map each public IP to the corresponding private IP. The internet sees those machines as physically having the public address but they can be protected by the firewall access rules.
I have done this on several Cisco routers, including the RV320, and it worked fine. IF you are wanting to assign the public addresses to the machines by hard coding them with the address, that is another matter. The 320 will do that as well but it is a little trickier.

Connecting a regular Monitor with DVI

I'm wondering if I can connect a pc-monitor to the apple TV using a HDMI-DVI cable?
Instead of using a TV I want to use a pc-monitor with DVI input.
Is this possible or do I have to connect really a TV?

Welcome to the  Discussion Forums.
There would be a couple of issues to overcome. One is already mentioned by JG, HDCP is often not supported by DVI, you would need to check. Then there's a resolution issue the GPU of the tv may not support the native resolution of a large monitor, also your picture may or may not fill the screen and WS tv is 16:9, WS monitors are typically 16:10. Finally DVI doesn't carry audio so you would need to take care of audio in another way.
It's not impossible, there are those that use them with the tv, but you would need to check your particular monitor would work.

How to connect my Mac Air 13" to my Philips display with DVI and VGA ports?

How to connect my Mac Air 13" to my Philips display with DVI and VGA ports?

Use a DVI to micro-DVI adapter if you're on an original MacBook Air, and a Mini DisplayPort adapter for a newer one.
(119682)

How can I connect a laptop with DVI to an Apple LED Cinema Display 27"

I have an old Mac Book Pro 2007 and a PC laptop, both with DVI.
I simply can't find a DVI to mini display adapter.
Can this be true?

Be careful. Make sure your laptop's DVI output is a dual-link DVI output. Otherwise it won't work correctly with the 27" through any adapter.

Clear enclosure 23" cinema display with DVi connector?

Hi all,
I went to a local Mac store (Not Apple) where I was shown a supposedly 23" HD cinema display (clear enclosure) with a DVI CONNECTOR directly built in. I was under the impression that all clear enclosure versions natively came with the ADC connector and that if DVI was warranted, a converted was necessary. To my surprise, Apple apparently made two clear enclosure versions, both ADC and DVI. I've verified under the spec. area of this site. But, there were no 23" clear enclosure with DVI, except of course, the current 23 version which is the aluminum. So, was the more likely scenario that this rep. had shown me a 22 with DVI or is there really a 23 version with DVI. I was convinced at the time myself that it was a 23 clear enclosure version with a DVI connector. I saw with my own eyes that this display did not have a converter connected and it looked like the 23 as opposed to a 22. The 22 & 23 looks so similar and can be mistaken for each other. One of the ways of identifying readily is that the 22 has the power/brightness controls near the bottom right of the casing. Could someone confirm either way. Thanks!

Hi-
I agree that the rep probably showed you a 22" DVI model. See page 8 of the 22" Cinema Display Manual for the cabling of the display.
You will see the DVI version of the Cinema Display listed in this article. The article was put out prior to the Aluminum housed ACD release.

Apple Cinema Display with DVI to VGA graphic adapter... HELP

A friend of mine has a PC (Windows XP based) and is using the Apple Cinema Display. Since his graphic card has both vga and dvi slot, he can plug the monitor to DVI and got it working, but when he tried to plug it into the VGA slot using DVI to VGA converter, it did not work. Is there a need of special converter or adapter?

Hi royz86,
To run a DVI display off a VGA output, you need a rather expensive converter box. These converters vary in performance, reliablility and application possibilities and certainly don't compare with using a native DVI output.
Your friend was probably trying to use a DVI to VGA adaptor (which won't work "the other way around"). It works by grabbing the analogue signal that is included in a DVI-I output and setting up a VGA output that way. These don't work with DVI-D outputs, by the way.
Cheers!
Karl

Cinema Display (clear) with DVI/ADC box doesn't work with MacBook Pro

Cinema Display (clear) with DVI/ADC box doesn't work with MacBook Pro when plugged in with a dvi to mini dvi cable. Any ideas what to do to make it work? I lugged the 23" 2500 miles into the wilderness and I need help

Okay, here's an update: the DVI to ADC adapter does work with the Apple displays that I have tried, but it won't work with the Formac. I have tried multiple time to contact them, but to no avail... they don't even respond to threats of posting my opinion of them, which is this:
DON'T BUY ANYTHING FROM FORMAC! They make quality products, but their customer service is a big time joke! They won't take care of you.

Notice to those with DVI fix!!

Similar Messages

Maybe you are looking for