ThinkPad T400 horizontal line across bottom of screen

Hello. I'm running Windows 7. A horizontal, flickering band has appeared along the bottom edge of the screen. When it is flickering I see what looks the top of the screen or window. When it settles down, there is just a thin line across the taskbar icons. This happened after I had been playing a computer game, although I doubt that has any bearing. I replaced the LCD assembly 7 months ago because I was having a problem with full-screen flashing/blinking, and the new LCD had no problems. I have tried changing a BIOS settings (enabling/disabling VT-d) but that made no difference. The line is there from the moment of boot-up whenever the screen is on. Do I have a chip going bad? I don't have an external monitor to test this with.

there is no real easy of testing it once you have done the basic diagnostic.
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

Similar Messages

HT2807 why is there a horizontal line across my imac screen?

why is there a horizontal line across my imac screen?

Not sure exactly which model your iMac is..?
see > How to identify iMac models
Sadly display lines generally indicate a problem with either the Display or the Graphic's Chip.
To check, take a screen shot of the display using the (Command Shift 3) keys and open it.
If the line is only seen on the Display and not in a screen shot, then it would most likely indicate a Display problem.
If the line shows up in a screen shot, then it would most likely indicate a Graphic's Ciip problem.

Line across bottom of screen

my son's 3 week old macbook pro has a line across the bottom of the screen. He has not dropped or misused the computer. It has been sitting on the counter all week because my son went away to camp. It was working fine Saturday morning. Started last night.

This is a user to user forum. Contact the store you bought it at immediately and see if they will exchange it. You are right at the end of many stores exchange period. Otherwise contact Applecare. It sounds like a common LCD inverter cable or board problem.

20 inch G5 iMac displaying 1/4 inch blotchy line across bottom of screen

I just noticed a 1/4 inch thick blotchy, somewhat transparent line near the bottom of my screen. A year ago, right after I purchased this computer, I had to have some things replaced because of a thick white line that appeared across the bottom. Is this more of the same?

It's been discussed and locked for a while...
http://discussions.apple.com/thread.jspa?messageID=975713
This was endemic on the Rev. A 20" models. I had my screen replaced twice. After the PS, mid-plane and mid-plane went again they sent me a new one with a built in iSight. I suggest you call Apple Care to have them repair it.
Good luck,
Dan Reilly
Sarasota, FL
PS: When posting it is suggested you descibe your machine in detail with the version of OS you are running. It may help in getting responses.
20" iMac 2.1 G5 (iSight), 1.5 gigs, 12" iBook, iPod Nano (Black), iPod Suffle Mac OS X (10.4.6)

Horizontal band across bottom of screen 2 inches

Hey guys,
I was trying to fix my bros old powerbook g4 so that i could use it. Everything works, except the bottom two inches of the display is not working. Its usually grayish, but if i shake the screen or hit it, it will change and look like what its supposed to. Even if i shake it, the gray just goes away, if i try moving my mouse down there it disappears, and if i open an application, the bottom part doesnt get updated, it just stays the way it was unless i hit it again. For a few days i got it to work at a certain angle, but now its back to its normal self. Is it a loose connection, or a software problem, or what?
Please give me suggestions.
Thanks

Perhaps you should look at this thread:
http://discussions.apple.com/thread.jspa?threadID=763497&tstart=90

Notebook dv7t. Red transparent horizontal lines across entire screen.

I need to know if it's as bad as I suspect. 2-1/2 yr old notebook dv7t on Win 7, with 17.2" monitor. No error messages. Troubleshooting finds nothing. Never had any problems before. All day yesterday, Tuesday 8/19, rebooting and shutting down repeatedly without success. Today, nothing, no lines!. Gotta expect it to happen again. No update available for NVidia GeForce card. Can anyone please advise? Thank you. Sillenn

Hi @Sillenn
Welcome to the HP Forums!
I would like to take a moment and thank you for using the forum, it is a great place to find answers. For you to have the best experience in the HP forum, I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand that you had red transparent horizontal lines across the entire screen. You rebooted your system and they were gone , but you are concerned they may return.
Here is a link to Display Quality Issues to assist you .
You can run The HP Support Assistant to aid with HP updates to ensure you have the latest drivers
You can test the video card for failure. Testing for Hardware Failures (Windows 7, Vista)
Please let me know the outcome.
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!

I have a horizontal line across the bottom of my screen how do I remove it?

Re: Macbook Air mid 2011, I have a horizontal line across the bottom of my screen, it appeared when I was updating my iPhone, How can I remove this line from my display?

It may be a GPU or display issue. In both cases, make a backup of your Mac and take it to an Apple Store or reseller to get it repaired.
To check whether it is a GPU or display issue, try taking a screenshot by pressing Command, Shift and 3 keys. The screenshot will appear in the Desktop, so open it and check if the line appears in the screenshot too. If so, it is a GPU issue; if not, it is a display issue.

Thin Horizontal Line Across Screen

I've had them before and they disappeared spontaneosly. The latest one seems to want to hang around. Any idea how to get rid of it?

This is a followup to my post earlier today. A web search on "Thin Horizontal Line Across Screen" turned up this article:
http://www.daniweb.com/techtalkforums/post24947-5.html
Sure enough, my horizontal line came back. I decided to follow the advice in the linked article. I didn't even have to twist the monitor. I barely tapped the screen as I was reaching up to twist the panel, and the line disappeared. This suggests to me that the problem is a loose internal connection between the driver circuitry and the panel.

I have a horizontal line across the middle of the ipod screen and the ipod and itunes won't sync. What is the line and is it connected to the no sync.

I have a horizontal line across the middle of the ipod screen and itunes and the ipod won't sync. What is the horizontal line and is it connected to the no sync.

Hey Dean Marvin,
Thanks for the question. These two symptoms are probablyh related. To troubleshoot, let's try resetting your iPod:
How to reset iPod
http://support.apple.com/kb/HT1320
Thanks,
Matt M.

I have a straight horizontal line across my screen

Hi Folks
have a straight horizontal line across my screen. Can assist?

Yes, move the screen slowly back and forth, if it changes, you have a damaged monitor feed cable
Does it appear in all screens?
Does it vanish from time to time?
post a pic, hook your AIr up to an external monitor, if its there, its GPU /logic problem
if its gone, its as mentioned a bad monitor feed from the logic via the cable.
perform SMC reset and re-verify
SMC reset
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.
Contact Apple for an appt. for in shop diagnostics and likely repair.

One of first versions of macbook air with black horizontal lines on bottom one third of screen and vertical line also one third of left side of screen

one of first versions of macbook air with black horizontal lines on bottom one third of screen and vertical line also one third of left side of screen

Hi
I've recently notice I have a thin black line in my screen.. I went to Apple store and was told it’s a hardware problem (400$+ to fix as no warranty).
This is the second time I’m having hardware screen issues with a Macbook Air (last time it was 3 months after I bought it, and it was replaced with this one)
Looks like the Macbook Air screens are very problematic! Anyone experience something like that?
Thanks,
Eyal.

Horizontal line across the monitor. It happened yesterday.

I have a HP ENVY 23-c1 10xt AiO (Lavaca3-SB)PCUS and there is a horizontal line across the monitor. It happened yesterday.

Hello again javajohn23,
I would like you to try the following steps:
Step 1. Turn off the computer, and then remove the power cord
Step 2. With the power cord disconnected, press and hold the power button for five seconds
Step 3. Reconnect the power cord, and then turn on the computer
If the above steps do not resolve it try the next set up steps:
Step 1. Restart your computer
Step 2. Repeatedly press the F10 key about once every second for five seconds after turning the computer on
Step 3. Wait five seconds
Step 4. Press the F5 key. This restores the default settings of the BIOS
Step 5. Press the Enter key. This accepts the changes
Step 6. Press the F10 key. This opens the Save and Exit window
Step 7. Press the Enter key. This saves the changes, exits the BIOS, and then the computer restarts
Step 8. Restart the computer.
Another thing I can think to try is review the HP Support document: Changing Display Settings, Background Image, Icons, and Screen Saver (Windows 7) to see if you can identify anything out of place.
We can also try to reload the Intel Graphics Driver for your computer as it will wipe out the settings when the new driver is reinstalled.
Please re-post with the results of these steps. Thank you for posting on the HP Forums. 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.
Dunidar
I work on behalf of HP
Find out a bit more about me by checking out my profile!
"Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

Horizontal Lines Across MBP Display

I am getting horizontal lines across the display of my laptop. The lines do not show-up when I have the computer attached to the external cinema display, and the lines will go away if I run the disk utility, with the only errors being SUID errors that cannot be repaired, and Apple has said aren't an issue. However, the next time I open my laptop, the lines re-appear. I've reset the PRAM, and that didn't work. If the lines are showing, a rebooting of the system does not help. The only fix I've found is running disk utility, but that is a very temporary fix.
The lines are all over the screen rotating up from top to bottom, and multi-colored. The overall display is blurry.
Any ideas?
Thanks,
Will

Unfortunately, that makes it sound like a problem with the built in display. Have you tried running the extended version of the Apple Hardware test? If you get an error code, it might give you a clue.
Do you have access to an Apple Store? I think they have a special diagnostic for the NVIDIA chip problem, so they might be able to pin down for certain if the problem is with the chip or the display.
Good luck!

Weird horizontal line across my macbook air 11"

It's been 2 days my Macbook Air 11" (bought on 2011) started to display an horizontal line across the screen. It gets dark when the background is light and it gets light when the bg is dark. I tried to get a screenshot but it doesn't show the line.
Do you have any idea of what it is? I bought this macbook while I lived in USA but now I'm back in Brazil. Any suggestions?
Thank you.
Andréa

Start up in Safe mode.
http://support.apple.com/kb/PH4373
If this does not help, contact Apple.
Best.

Horizontal lines at bottom of display/monitor

I have a HP All-in-one TouchSmart 610-1280qd ( QB912AV#ABA) it's 2yrs old an out of blue, horizontal lines at bottom of monitor/display.
I tried chatting with the support desk, NO help, I was told to start up in BOIS, NO help. I was ask to try to connect another monitor to the PC and check if I was facing the same issue on that monitor as well or not ? Oh yea this is a ALL-IN-ONE PC!
NO help.
I need to know if there's a FIX to remove these horizontal lines at bottom of monitor/display?

Hi zenalas,
Thank you for using Apple Support Communities.
Since you have already restarted and reset your iPhone, the next step in troubleshooting this issue where you are seeing lines on your screen is to restore the iPhone to its factory settings.
Use iTunes to restore your iOS device to factory settings - Apple Support
Cheers,
Alex H.

ThinkPad T400 horizontal line across bottom of screen

Similar Messages

Maybe you are looking for