New LG204TW 20" widescreen monitor shows black lines ??

Yesterday I picked up the new LG L204TW widescreen monitor for my Intel Mac Mini.
The display is detected by OSX and I can run the native resolution of 1680x1050 @ 60Hz. via DVI.
But there is a sort of flickering of the screen. Actually there are black horizontal lines showing up. This happens mostly when browsing.
When I open for example a Quitime window and move the window of the playing video over the black lines, the lines are gone. So I think it is not the display itself.
Changing the resolution does not help. Any idea how this can be solved?
Regards,
Armand
Mini Core Duo, iMmac Core Duo Mac OS X (10.4.7)

Hook up another monitor that you have and see if it is your mac, if it isn't your mac then take the LG screen back to the shop, ask for full refund and consider another monitor.

Similar Messages

Satellite A100-646 and external monitor shows black screen

Hello to everybody,
I have a similar problem with A100-646 (bought in Italy). Laptop's LCD and external monitor shows black screen but system boots without other problem. When laptop is not used for a long time (half a year) it work for one week without any problem.
Unfortunately, there is no proper service in a place where I live. Perhaps, there is a problem with power supply.
Is there other idea? Does anybody have a service manual? ([email protected])

It is not easy to find shop where you can order original and new hardware components.
Best source for such parts is definitely eBay where you can buy used but well working components.
Upgrade? You must know that upgrade on mobile computers is not the same as on desktops. Cooling possibilities are not the best and each notebook model has optimized cooling system for original parts. So new graphic card can be more powerful and produce more heat and it is definitely not good for your notebook. So best thing you can do is to replace it with original part.

Display showing black lines

My ipod display is showing black lines. What should i do?

Have you worked through the basic 5 R's of troubleshooting yet? If not that would be a good place to start as they can help rule out a software issue.
http://www.apple.com/support/ipod/five_rs/
Otherwise, if none of those work, we know the issue is hardware related. The LCD is probably damaged and in need or a replacement. You can have your iPod serviced or replaced either by Apple or a third party repair company.
B-rock

My Ipods LCD Screen Is showing Black Lines

My Ipod Video has black lines across the screen and they're getting bigger everytime I use it. This is the first problem I've had and am wondering should I buy a new one or just get it repaired.

Certainly try this first...
http://www.apple.com/support/ipod/five_rs/

My activity monitor shows 24 lines of cpus.

That would be nice, but I have only 12 cores. Has anyone else seen this?

I thought that was possible but appreciate the validation.
What originally caught my eye was that only every other line in the activity monitor showed any activity. So I ran the hardware diagnostics to see if there was anything amiss. No problems were found. So it looks like the hyperthreading is not being used, but all the cores do participate to some extent.
I was involved in the signal processor industry in the 80s when the use of multiple processors was really getting going. Our system was synchronous, but even so, required a lot of planning to use efficiently. My work is mainly finite element analysis, Monte Carlo simulation and image processing, all of which can be programmed in parallel, so I expect to benefit from it at some point. So far 20-35% that you note is pretty accurate.

External monitor shows black screen

Hey fella's,
I have an early 2011, 11'' Macbook Pro running Yosemite 10.10.1, which I've been hooking up to an IPS226 LG Flatron external monitor.
It did a number on me last week: the external monitor decided to show only a completely black screen. Like it's in power saving mode, except it isn't: the Mac recognises its existence, the laptop's monitor becomes a secondary screen. When I unplug the external monitor, it says "switching to power saving mode" and then goes black again...
Here's the kicker: I tried hooking it up to other laptops using different cables (mine is HDMI, so I tried VGA to another laptop) - worked like a charm. Then, when I plugged mine back in, also worked! Until today. Now it's happened again. What sorcery is this?
Thanks!

Hi Polindrom,
To troubleshoot this issue where the external display you're using with your Mac appears blank, please follow the directions outlined below.
No video or no signal, image distortion, "snow," or flickering
Check connections
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.
Try unplugging the video adapter or cable and then plug it back in.
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 resolution
Start 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.
Apple computers: Troubleshooting issues with video on internal or external displays - Apple Support
Thanks for using the Apple Support Communities!
Cheers,
Alex H.

External monitor showing black screen

I just got an LG external monitor with DVI cable and the mini-DVI to DVI adapter. When I plug it in, my MacBook sees the display but nothing shows up on the display. Any ideas as to what the issue might be? Could it be the port on my MacBook? This is the second display I've tried and am having the same issue, so I'm thinking it's my computer. Help!!!

I have been having similar problems with an LG monitor too but it is resolution dependent. Could there be some issue with LG monitors and Macs? I could go the VGA route too but isn't that inferior picture quality?
Message was edited by: Voodoo Ray

Samsung monitor shows black bars on sides

I'm running OS 10.8.2 on a mid-2012 MacBook Pro, and I recently bought a Samsung Syncmaster SA300 (22 inch) monitor which I've connected using a VGA cable (DVI wasn't working, don't know why). I immediately noticed black bars on the sides of the screen, and the picture seems squished, despite the fact that I've chosen the proper resolution for the monitor. Funny thing is, when I boot into Windows 7, the bars disappear and the resolution looks perfect.

Hello MpegEVIL,
I would recommend taking a look at this article named Apple computers: Troubleshooting issues with video on internal or external displays found here http://support.apple.com/kb/ht1573
I feel this article has the best troubleshooting steps for you.

IPad Crashes-Black Lines and makes random restarts

This barely happens before on my ipad until recently my teacher confiscates my ipad. After this going on, my ipad kept on undergoing multiple crashes and restarts. When I was rotating my screen or opening an app, it shows black lines and restarts by its own.
I tried system reset and restore but none of it seems to work.
Here is the system diagnostics for the crash:
{"os_version":"iOS 8.0.2 (12A405)","bug_type":"110"}
Incident Identifier: 953608D1-09CF-4B9E-A2B2-F1B504534874
CrashReporter Key:   e669fec46b9c53c7ff9529a93d02456c675e4851
Hardware Model:      iPad2,2
Date/Time:           2014-10-07 11:20:43.190 +0700
OS Version:          iOS 8.0.2 (12A405)
panic(cpu 0 caller 0xa042a347): "i2c2::_checkBusStatus Bus is still in a bad state; last read status 00010110 xfer 00000000 fifo 00000000 for device gyro"
Debugger message: panic
OS version: 12A405
Kernel version: Darwin Kernel Version 14.0.0: Thu Sep 18 21:52:05 PDT 2014; root:xnu-2783.1.72~23/RELEASE_ARM_S5L8940X
Kernel slide:     0x000000001fc00000
Kernel text base: 0x9fc01000
Boot    : 0x5432bc03 0x00000000
Sleep   : 0x543309af 0x000dd11e
Wake    : 0x54330d4c 0x0005a2a3
Calendar: 0x54335fba 0x000a5776
Panicked task 0xa12e7c60: 13728 pages, 112 threads: pid 0: kernel_task
panicked thread: 0x811112e0, backtrace: 0x8f4abd50
0x9fcad949
0x9fcadca9
0x9fc1d4a5
0xa042a347
0xa042a059
0xa0429e35
0xa009b611
0xa009b523
0x9fef6741
0xa009bc7d
0xa009bcd5
0xa0589a11
0xa05867f1
0x9fef8a01
0x9fc3ec03
0x9fcab59c
Task 0xa12e7c60: 13728 pages, 112 threads: pid 0: kernel_task
Task 0xa12e7948: 808 pages, 7 threads: pid 1: launchd
Task 0xa12e7630: 2284 pages, 31 threads: pid 17: UserEventAgent
Task 0xa12e7000: 720 pages, 2 threads: pid 18: misd
Task 0xa12e7318: 2424 pages, 14 threads: pid 19: CommCenterClassi
Task 0xa4ebe948: 247 pages, 2 threads: pid 21: keybagd
Task 0xa4ebe318: 755 pages, 2 threads: pid 23: iaptransportd
Task 0xa4ebe000: 1021 pages, 10 threads: pid 24: configd
Task 0xa519cc60: 915 pages, 2 threads: pid 25: lockdownd
Task 0xa519c948: 1153 pages, 4 threads: pid 26: imagent
Task 0xa519c630: 846 pages, 2 threads: pid 27: fairplayd.A1
Task 0xa519c318: 2865 pages, 4 threads: pid 28: atc
Task 0xa54adc60: 1279 pages, 4 threads: pid 30: routined
Task 0xa54ad318: 940 pages, 3 threads: pid 33: timed
Task 0xa5419c60: 854 pages, 3 threads: pid 35: installd
Task 0xa5419948: 2776 pages, 14 threads: pid 36: mediaserverd
Task 0xa5419318: 259 pages, 7 threads: pid 38: syslogd
Task 0xa5419000: 414 pages, 2 threads: pid 39: softwareupdated
Task 0xa5508c60: 1075 pages, 5 threads: pid 40: mediaremoted
Task 0xa5508948: 1514 pages, 6 threads: pid 41: identityservices
Task 0xa5508630: 12372 pages, 20 threads: pid 42: SpringBoard
Task 0xa5508318: 564 pages, 3 threads: pid 43: fileproviderd
Task 0xa5508000: 1279 pages, 2 threads: pid 44: familynotificati
Task 0xa5771c60: 1130 pages, 4 threads: pid 45: tipsd
Task 0xa5771630: 253 pages, 5 threads: pid 47: fseventsd
Task 0xa5771318: 7
Thanks in Advance
This barely happens before on my ipad until recently my teacher confiscates my ipad. After this going on, my ipad kept on undergoing multiple crashes and restarts. When I was rotating my screen or opening an app, it shows black lines and restarts by its own.
I tried system reset and restore but none of it seems to work.
Here is the system diagnostics for the crash:
{"os_version":"iOS 8.0.2 (12A405)","bug_type":"110"}
Incident Identifier: 953608D1-09CF-4B9E-A2B2-F1B504534874
CrashReporter Key:   e669fec46b9c53c7ff9529a93d02456c675e4851
Hardware Model:      iPad2,2
Date/Time:           2014-10-07 11:20:43.190 +0700
OS Version:          iOS 8.0.2 (12A405)
panic(cpu 0 caller 0xa042a347): "i2c2::_checkBusStatus Bus is still in a bad state; last read status 00010110 xfer 00000000 fifo 00000000 for device gyro"
Debugger message: panic
OS version: 12A405
Kernel version: Darwin Kernel Version 14.0.0: Thu Sep 18 21:52:05 PDT 2014; root:xnu-2783.1.72~23/RELEASE_ARM_S5L8940X
Kernel slide:     0x000000001fc00000
Kernel text base: 0x9fc01000
Boot    : 0x5432bc03 0x00000000
Sleep   : 0x543309af 0x000dd11e
Wake    : 0x54330d4c 0x0005a2a3
Calendar: 0x54335fba 0x000a5776
Panicked task 0xa12e7c60: 13728 pages, 112 threads: pid 0: kernel_task
panicked thread: 0x811112e0, backtrace: 0x8f4abd50
0x9fcad949
0x9fcadca9
0x9fc1d4a5
0xa042a347
0xa042a059
0xa0429e35
0xa009b611
0xa009b523
0x9fef6741
0xa009bc7d
0xa009bcd5
0xa0589a11
0xa05867f1
0x9fef8a01
0x9fc3ec03
0x9fcab59c
Task 0xa12e7c60: 13728 pages, 112 threads: pid 0: kernel_task
Task 0xa12e7948: 808 pages, 7 threads: pid 1: launchd
Task 0xa12e7630: 2284 pages, 31 threads: pid 17: UserEventAgent
Task 0xa12e7000: 720 pages, 2 threads: pid 18: misd
Task 0xa12e7318: 2424 pages, 14 threads: pid 19: CommCenterClassi
Task 0xa4ebe948: 247 pages, 2 threads: pid 21: keybagd
Task 0xa4ebe318: 755 pages, 2 threads: pid 23: iaptransportd
Task 0xa4ebe000: 1021 pages, 10 threads: pid 24: configd
Task 0xa519cc60: 915 pages, 2 threads: pid 25: lockdownd
Task 0xa519c948: 1153 pages, 4 threads: pid 26: imagent
Task 0xa519c630: 846 pages, 2 threads: pid 27: fairplayd.A1
Task 0xa519c318: 2865 pages, 4 threads: pid 28: atc
Task 0xa54adc60: 1279 pages, 4 threads: pid 30: routined
Task 0xa54ad318: 940 pages, 3 threads: pid 33: timed
Task 0xa5419c60: 854 pages, 3 threads: pid 35: installd
Task 0xa5419948: 2776 pages, 14 threads: pid 36: mediaserverd
Task 0xa5419318: 259 pages, 7 threads: pid 38: syslogd
Task 0xa5419000: 414 pages, 2 threads: pid 39: softwareupdated
Task 0xa5508c60: 1075 pages, 5 threads: pid 40: mediaremoted
Task 0xa5508948: 1514 pages, 6 threads: pid 41: identityservices
Task 0xa5508630: 12372 pages, 20 threads: pid 42: SpringBoard
Task 0xa5508318: 564 pages, 3 threads: pid 43: fileproviderd
Task 0xa5508000: 1279 pages, 2 threads: pid 44: familynotificati
Task 0xa5771c60: 1130 pages, 4 threads: pid 45: tipsd
Task 0xa5771630: 253 pages, 5 threads: pid 47: fseventsd
Task 0xa5771318: 7
Thanks in Advance

Hi kimmichelle1912,
Thank you for using Apple Support Communities.
From your post I understand that your iPad is unexpectedly restarting on you. To resolve this issue I'd like you to please follow the steps below.
Make sure your iOS device is up to date. If you still see this issue after updating, contact Apple Support.
Learn what to do if your iOS device won't start up past Apple logo or doesn't respond.
iOS: Device unexpectedly restarts, displays Apple logo, or powers off
Take care,
Alex H.

Bad Screen Laptop Screen - showing blue lines instead of black

I have an old laptop HP Pavilion DV7-1448dx, the screen shows blue lines instead of black. I tried using TV as a monitor and it doesnt have any problem, it only shows on the laptop. I replaced the LCD screen with a brand new screen but it still shows the same problem. I attached the pictures of what my screen looks like. It only shows this on the black color and the others are ok. Pls help!

@luv2travl ,
Hello and welcome to the HP support forum. Thank you for posting about your display issue.
It sounds as if the RGB output of the graphics card has become a bit off in your case. You have replaced the screen so the output that supplies the LCD from the graphics card is the issue.
As you stated on a VGA output to a TV it looks normal. Therefor it isnt the card totally having the problem.
Here is a link you can check out on display issues.
Display Quality Issues
Here is a link to your systems Maintenance and Service guide as well. One thing you may want to check is the actual cable that connects the screen to the motherboard. This is the easiest and cheapest part to work with.
If you replace the connection cable from the motherboard to the monitor this may fix the issue.
HP Pavilion dv7 Entertainment PC Maintenance and Service Guide
Please let me know how thing go with this.
Thank you again for posting and have a great day.
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
D5GR
I work on behalf of HP

16:9 showing on widescreen monitor with bars

Hi - I shot on a Z1 in 16:9, I imported as DV PAL anamorphic. It shows fine in the viewer and is full screen on a widescreen monitor. But when I edit it onto a 16:9 sequence it appears with black bars top and bottom in the canvas and on the monitor. Is it supposed to?
I can go into the Motion tab and change the aspect ratio to 0 to make the image full screen, but shouldn't it do this automatically?
Appreciate your help.
Bhavesh

Were your clips already on the timeline when you changed your sequence settings to 16x9?

New widescreen monitor distorts images

I am in the process of setting up and learning to use my new widescreen Samsung T260HD monitor with ATI Radeon Graphics card. Having worked on hundreds of photos in Photoshop and PSElements using a traditional 3x4 aspect ratio monitor, when I view my photos on this widescreen monitor the horizontal dimension is enlarged with respect to the vertical dimension, so the pictures look severly distorted. I tried changing the screen resolution under monitor preferences, but the problem wasn't cured.
With "View/Ruler" turned on, my 4x6inch photos don't show as 2x3 aspect ratio, but rather with a distortion factor of 20% in the horizontal direction. For example, a true 4x6 photo shows on screen as a 4.8x6 image, making editing problematical.
Can you tell me how to make my widescreen show true aspect ratios?

Your monitor should be set to its native (i.e. the highest available) resolution. If you choose a lower resolution, the kind of distortion you mention is common.

Why is it that when I plug my Macbook Pro to an external monitor, the external monitor turns black and shows the mouse only

Why is it that when I plug my Macbook Pro to an external monitor, the external monitor turns black and shows the mouse only

Hi, yes preferences sees there is a second display it recognises what make of monitor it is etc but I just get a blank blue screen on the monitor when I change it to the hdmi setting! I have tried with mirroring on and off, rearranging the displays in the preference window and lots of different resolution settings but with no difference.
An old MacBook connects fine so the monitor and hdmi port must be okay. I'm sure we have used the cable before but it could have been with the previous MacBook Air. The current one I'm using is a mid 2011 version running lion and is (according to software update) all up to date.
Any thoughts or help would be appreciated!

External Monitor Shows Only Black Screen ??

Recently, my PowerBook G4 12" stopped working properly with my external monitor. My external monitor is a Dell 2005FPW that is connected to my laptop via a mini-DVI adapter, a VGA cable to the VGA port on the 2005FPW. When connected to the laptop, the 2005FPW goes black; otherwise, the monitor shows it's "rest" screen which is a bouncing color bar.
This system has worked without problems for years. I changed nothing in the configuration and (possible red herring) the only "event" prior to the problem developing was that I installed the "Security Update 2008-005 (PowerPC) v 1.0".
I have confirmed that the monitor and VGA cable are working with my wife's laptop.
Today, I replaced the mini-DVI to VGA adapter, and the problem hasn't gone away.
Any suggestions?
Michael

Did it develop around the same time, after you downloaded the security update?

I just bought a new external monitor (ASUS), and I have DVI adapter plug. When I connect it with my Macbook pro - the monitor remain black (even tho it is 'on')

I just bought a new external monitor (ASUS), and it have DVI and VGA plugs. I bought the DVI adapter to connect with my macbook pro laptop. But the external monitor remain black… so I turn it off then turn it back on, it said "No VGA signal". Does it means I have to use VGA adapter instead? I am not sure how it work, I am very new to it… I hope you can help me out!
Thanks!

Use the Transfer Purchases command in the File menu of iTunes.
(60931)

New LG204TW 20" widescreen monitor shows black lines ??

Similar Messages

Maybe you are looking for