Pink flickering display problem

Hoping someone might be able to help. The screen on my Powerbook G4 15" 1.5Ghz (OS X 10.4.11) is a dark pink (almost black) and flickers. You can still just see the desktop and icons but only very faintly. Originally, it went pink only on start-up (or when the screen woke from sleep) when it would gradually 'warm up' to white. I now can only use it in clamshell mode with a Studio Display which doesn't have the pink problem . From reading other posts, I gather that this seems to suggest that there isn't a problem with the logic board, but maybe the backlight has gone, or a cable, or the inverter needs replacing. Has anyone had the same problem, and if so was one of these that was the problem, and were you able to fix it? I've looked at various online diy repair tutorials and reckon I could handle most of them, but I'd like to be as sure as possible that I'm replacing the rigt parts before undertaking the project. Any suggestions gratefully received.

Peter: I'm sure I wrote a reply to your post the day it first appeared here, but I guess I must have hit the Back button instead of the Post button after composing it. Sorry!
The fact that an external display works fine for you indicates definitively, as you've guessed, that your logic board (including the GPU) is working properly. The problem is with your display backlight. An old, tired fluorescent backlight tube is typically pink or reddish until it warms up, and a very old one may stay pink or reddish all the time. If your backlight is flickering, it may never warm up properly, so that may explain its continued pinkness. The flickering may be caused by a failing inverter (which supplies power to the backlight) or by a damaged backlight cable (damage can be caused by chafing where the cable passes through the display hinge) or, much less likely, by a failing backlight tube. In your shoes, I would begin by replacing the inverter to see whether that eliminates the flickering. Replacing either the cable or the backlight tube is much more involved, and I don't recommend those as DIY procedures.
Sarah: You haven't told us how your display is misbehaving, so I don't know whether or not my advice to Peter is on target for you too. Exactly what are you seeing on your built-in display, and what do you see when you connect an external display?

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This appears to be a continuation of an issue you noted in September, as the
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Hi Finej,
Welcome to Lenovo Community!
As per the query we understand that you are facing the issue with Display on your ThinkPad X200s.
As per the snapshot I am sure it is a hardware issue and it might be with Display screen or with system board. However I request you to confirm this in BIOS mode if the issue persists in BIOS mode also.
And also connect the external monitor while performing the BIOS boot, to perform the steps you have to keep tapping the F1 key after switching ON the system.
Hope to hear back soon!
Best regards,
Hemanth Kumar
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Hi,  
I'm not sure if this is the right place to post this so I'm sorry if it isn't - this is just the only place I could think of to ask about a display problem?
I’ve just got the new model Cintiq 21UX, and I’m running it off one of the newer model MacBook Pro’s (using Apples adapter to connect the two).
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Hello,
If you are using Add-on then it will happed because programmer set keyword last focus in which cell and i think your programmer have code for some arthritic operation on grid then it will happen.
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for tesing pupose stop the add-on then try make new document.
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Edited by: Manvendra Singh Niranjan on May 21, 2011 8:07 AM

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Had same problem (flickering display on resume after sleep mode or display off mode ) with Elitebook 8440p, Nvidia NVS3100M (purchased in april 2011), and Elitebook 8460p (purchased in april 2012)
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http://www.bostonit.com/KnowledgeBase-Links-Articles/HP-Elitebook-Screen-Flickers.html
http://askubuntu.com/questions/146751/hp-elitebook-8440p-screen-flickers-after-blank-screen-nvidia
http://bizsupport1.austin.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02711573&lang=en&cc=u...
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http://h30434.www3.hp.com/t5/Notebook-Display-and-Video-e-g-Windows-8/Elitebook-8440p-90w-Docking-St...

Help needed identifying display problem

I have a 17 inch Powerbook G4. I saw that a lot of people have got display problems and unfortunately I have too. Hopefully you can help me figure out what’s exactly wrong so I can try to fix it!
Here are the symptoms:
The upper third of the display is working fine.
The middle and lower third of the display are darker / faded and flicker a bit at around 20/30 hertz. (But this part is backlit, only a lot less)
No other symptoms, also the grey part isn’t deformed)
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I have run several tests. Nothing seems to be wrong with video memory or so. The external display port produces a fine image on an external monitor too.
I have made some pictures of what the screen looks like:
http://www.renessance.nl/powerbook/display01.jpg
http://www.renessance.nl/powerbook/display02.jpg
http://www.renessance.nl/powerbook/display03.jpg
http://www.renessance.nl/powerbook/display04.jpg
http://www.renessance.nl/powerbook/display05.jpg
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In continuing my research on this topic, I found this article:
http://support.apple.com/kb/TS5198
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Display problem - need advise

Hi everyone,
I have a problem with the display of my MBP. It's a 15" Glossy LED (June 2007). It happens heretically about a couple of time per week, sometimes less, sometimes more.
When I open the lid to wack it back from sleep, I have sometimes the display that have a sort of flickering artifact (see picture 1). Then, after 5 or 10 secs like this, the screen goes like picture 2: a mess of grey patterns. But it also happens that it goes directly into 'pic #2 mode'. On a external display, I don't have any problem. And it happens quasi exclusively when I'm on battery.
pic #1: http://tof.canardpc.com/show/734706b9-3945-4dbb-8626-f3aa06c56e04.html
pic #2: http://tof.canardpc.com/show/54c3b309-586b-404a-a742-6197b16a0570.html
I have done a RMA on it to a Apple Premium Reseller (no Apple store here in Belgium). They tried to gave me an estimation on what it will cost to me and they couldn't reproduce this problem, so they guessed based on my pictures that it should be the screen that needs replacement. But they can't be sure and if this problem occurs again after the 3 months repair garanty, then, bad luck, all extra repair will be at my own expenses.
So, what I basically want to know is if there is someone who had the same problem and if a accurate diagnosis has been done.
Many thanks for your help.

Welcome to Apple Discussions!
If you never have the problem on an external display, that does imply that the problem, whatever it is, lies with the internal display. If the problem were caused by the NVIDIA chip problem, then you would also expect to see the same artifacts on the external. You might want to check anyway to see if you have the NVIDIA chip:
http://support.apple.com/kb/TS2377
This problem can be intermittent, so you need to be sure that your graphics artifact never shows up on the external display. If it ever does, then you have a graphics chip problem rather than a display problem.
It sounds like the reseller may just be guessing as to what the problem might be. Is there any way you could send your Mac directly to Apple for diagnosis? It also seems that a display replacement should be good for more than 90 days. I'm wondering if there is any one else--maybe an Apple authorized repair service--who could do an actual diagnosis. Display replacement is quite expensive--I would want to be sure that the display was indeed the problem and not the graphics chip. If it were to turn out to be the graphics chip, then according to the article, Apple would do the repair free of charge.
Good luck!

Flickering Display Successes

Since the other threads are getting so long with people saying the same thing, i thought i would round them all up and start this one for people who have fixed thier flickering display to share with others how they did it. Hopefully this should be useful for people who havnt fixed theirs yet.
So please don't post unless you have fixed your display (or apple have).
Il start... I downloaded the latest battery update and it seems to have worked.

I have the same problem (but no solution I'm afraid). If I move the screen back and forward a few time I can find a position where the flickering stops. I'm guessing this is a cable or connector problem. For me, it's an irritation that doesn't warrant paying the money to get it fixed, since my PB is 3 years old and if the screen gives up the ghost completely then I'm ready to buy a new laptop.

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Interval Since Last Panic Report: 104960 sec
Panics Since Last Report: 5
Anonymous UUID: 7D1AEF43-7E19-4F58-A1E0-48FA992A2814
Wed Nov 18 15:49:50 2009
panic(cpu 0 caller 0x9cdb10): NVRM[0/1:0:0]: Read Error 0x00009410: CFG 0xffffffff 0xffffffff 0xd2000000, BAR0 0xd2000000 0x5d3e2000 0x084700a2, D0, P1/4
Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x5c99b7d8 : 0x21b2bd (0x5cf868 0x5c99b80c 0x223719 0x0)
0x5c99b828 : 0x9cdb10 (0xbb7fec 0xc209c0 0xbc3660 0x0)
0x5c99b8c8 : 0x147690d (0x8b5ac04 0x7edf004 0x9410 0xabd962)
0x5c99b908 : 0x1534e6a (0x7edf004 0x9410 0x5c99b968 0x9)
0x5c99b948 : 0xb51ca5 (0x7edf004 0x91ed004 0x0 0x0)
0x5c99b968 : 0xac155b (0x91ed004 0x5c99baa4 0x0 0x0)
0x5c99b9b8 : 0x145f290 (0x7edf004 0x3d0900 0x5c99baa4 0x0)
0x5c99bad8 : 0xab2821 (0x7edf004 0x91cf004 0x815200c 0x200)
0x5c99bb18 : 0xb1f172 (0x7edf004 0x91cf004 0xeb9bcc0 0xeb9bc04)
0x5c99bbc8 : 0xb202db (0x7edf004 0x91f0404 0x0 0x0)
0x5c99bc58 : 0x14bb7a3 (0x7edf004 0x91f0404 0x9 0x2)
0x5c99bd68 : 0x14ed407 (0x7edf004 0x91cf404 0x0 0x0)
0x5c99be98 : 0xad3934 (0x7edf004 0x91ca404 0x0 0x0)
0x5c99bec8 : 0x9d61fb (0x7edf004 0x91ca404 0x0 0x0)
0x5c99bf08 : 0x5491b5 (0x0 0x9499680 0x1 0x29c50a)
0x5c99bf58 : 0x5481e6 (0x9499680 0x1 0x5c99bf88 0x547d9d)
0x5c99bf88 : 0x548640 (0x8abaf00 0x7e9ecc0 0xe780850c 0x2a6e5f)
0x5c99bfc8 : 0x29d68c (0x8abaf00 0x0 0x10 0x88bbfc4)
Kernel Extensions in backtrace (with dependencies):
com.apple.nvidia.nv50hal(6.0.6)@0x136b000->0x17f1fff
dependency: com.apple.NVDAResman(6.0.6)@0x96f000
com.apple.NVDAResman(6.0.6)@0x96f000->0xc21fff
dependency: com.apple.iokit.IOPCIFamily(2.6)@0x932000
dependency: com.apple.iokit.IONDRVSupport(2.0)@0x961000
dependency: com.apple.iokit.IOGraphicsFamily(2.0)@0x943000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
10C540
Kernel version:
Darwin Kernel Version 10.2.0: Tue Nov 3 10:37:10 PST 2009; root:xnu-1486.2.11~1/RELEASE_I386
System model name: MacBookPro3,1 (Mac-F4238BC8)
System uptime in nanoseconds: 3788331456483
unloaded kexts:
com.apple.driver.AppleFileSystemDriver 2.0 (addr 0xf02000, size 0x12288) - last unloaded 94521475551
loaded kexts:
org.virtualbox.kext.VBoxNetAdp 2.2.2
org.virtualbox.kext.VBoxNetFlt 2.2.2
org.virtualbox.kext.VBoxUSB 2.2.2
org.virtualbox.kext.VBoxDrv 2.2.2
com.bresink.driver.BRESINKx86Monitoring 5.0
com.pctools.iantivirus.kfs 1.0.1
com.apple.driver.AppleHWSensor 1.9.2d0 - last loaded 31800108689
com.apple.filesystems.ntfs 3.1
com.apple.filesystems.autofs 2.1.0
com.apple.driver.AppleHDA 1.7.9a4
com.apple.driver.AirPort.Atheros 412.19.4
com.apple.kext.AppleSMCLMU 1.4.5d1
com.apple.driver.SMCMotionSensor 3.0.0d4
com.apple.DontSteal_Mac_OSX 7.0.0
com.apple.driver.AudioIPCDriver 1.1.2
com.apple.driver.AppleIntelMeromProfile 19
com.apple.driver.ACPISMCPlatformPlugin 4.0.1d0
com.apple.driver.AppleLPC 1.4.9
com.apple.driver.AppleBacklight 170.0.14
com.apple.driver.AppleUpstreamUserClient 3.1.0
com.apple.GeForce 6.0.6
com.apple.driver.AppleUSBTrackpad 1.8.0b4
com.apple.driver.AppleUSBTCKeyEventDriver 1.8.0b4
com.apple.driver.AppleUSBTCKeyboard 1.8.0b4
com.apple.iokit.SCSITaskUserClient 2.6.0
com.apple.BootCache 31
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.iokit.IOAHCIBlockStorage 1.6.0
com.apple.iokit.AppleYukon2 3.1.14b1
com.apple.driver.AppleAHCIPort 2.0.1
com.apple.driver.AppleSmartBatteryManager 160.0.0
com.apple.driver.AppleIntelPIIXATA 2.5.0
com.apple.driver.AppleUSBHub 3.8.4
com.apple.driver.AppleFWOHCI 4.4.0
com.apple.driver.AppleUSBEHCI 3.7.5
com.apple.driver.AppleUSBUHCI 3.7.5
com.apple.driver.AppleEFINVRAM 1.3.0
com.apple.driver.AppleRTC 1.3
com.apple.driver.AppleHPET 1.4
com.apple.driver.AppleACPIButtons 1.3
com.apple.driver.AppleSMBIOS 1.4
com.apple.driver.AppleACPIEC 1.3
com.apple.driver.AppleAPIC 1.4
com.apple.security.sandbox 0
com.apple.security.quarantine 0
com.apple.nke.applicationfirewall 2.1.11
com.apple.driver.AppleIntelCPUPowerManagementClient 96.0.0
com.apple.driver.AppleIntelCPUPowerManagement 96.0.0
com.apple.driver.DspFuncLib 1.7.9a4
com.apple.driver.AppleProfileReadCounterAction 17
com.apple.driver.AppleProfileTimestampAction 10
com.apple.driver.AppleProfileThreadInfoAction 14
com.apple.driver.AppleProfileRegisterStateAction 10
com.apple.driver.AppleProfileKEventAction 10
com.apple.driver.AppleProfileCallstackAction 20
com.apple.iokit.IOFireWireIP 2.0.3
com.apple.iokit.IO80211Family 310.6
com.apple.iokit.IOSurface 73.0
com.apple.iokit.IOBluetoothSerialManager 2.2.4f3
com.apple.iokit.IOSerialFamily 10.0.3
com.apple.iokit.IOAudioFamily 1.7.2fc1
com.apple.kext.OSvKernDSPLib 1.3
com.apple.driver.AppleHDAController 1.7.9a4
com.apple.iokit.IOHDAFamily 1.7.9a4
com.apple.iokit.AppleProfileFamily 41
com.apple.driver.AppleSMC 3.0.1d2
com.apple.driver.IOPlatformPluginFamily 4.0.1d0
com.apple.nvidia.nv50hal 6.0.6
com.apple.NVDAResman 6.0.6
com.apple.iokit.IONDRVSupport 2.0
com.apple.iokit.IOGraphicsFamily 2.0
com.apple.driver.CSRUSBBluetoothHCIController 2.2.4f3
com.apple.driver.AppleUSBBluetoothHCIController 2.2.4f3
com.apple.iokit.IOBluetoothFamily 2.2.4f3
com.apple.iokit.IOUSBHIDDriver 3.8.4
com.apple.driver.AppleUSBMergeNub 3.8.5
com.apple.driver.AppleUSBComposite 3.7.5
com.apple.iokit.IOSCSIMultimediaCommandsDevice 2.6.0
com.apple.iokit.IOBDStorageFamily 1.6
com.apple.iokit.IODVDStorageFamily 1.6
com.apple.iokit.IOCDStorageFamily 1.6
com.apple.driver.XsanFilter 402.1
com.apple.iokit.IONetworkingFamily 1.9
com.apple.iokit.IOATAPIProtocolTransport 2.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily 2.6.0
com.apple.iokit.IOAHCIFamily 2.0.2
com.apple.iokit.IOATAFamily 2.5.0
com.apple.iokit.IOUSBUserClient 3.8.5
com.apple.iokit.IOFireWireFamily 4.1.7
com.apple.iokit.IOUSBFamily 3.8.5
com.apple.driver.AppleEFIRuntime 1.3.0
com.apple.iokit.IOHIDFamily 1.6.1
com.apple.iokit.IOSMBusFamily 1.1
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 6
com.apple.driver.DiskImages 281
com.apple.iokit.IOStorageFamily 1.6
com.apple.driver.AppleACPIPlatform 1.3
com.apple.iokit.IOPCIFamily 2.6
com.apple.iokit.IOACPIFamily 1.3.0
Model: MacBookPro3,1, BootROM MBP31.0070.B07, 2 processors, Intel Core 2 Duo, 2.2 GHz, 4 GB, SMC 1.16f11
Graphics: NVIDIA GeForce 8600M GT, GeForce 8600M GT, PCIe, 128 MB
Memory Module: global_name
AirPort: spairportwireless_card_type_airportextreme (0x168C, 0x87), Atheros 5416: 2.0.19.4
Bluetooth: Version 2.2.4f3, 2 service, 0 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
PCI Card: pci168c,24, sppci_othernetwork, PCI Slot 5
Serial ATA Device: ST9320421ASG, 298.09 GB
Parallel ATA Device: MATSHITADVD-R UJ-857E
USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x8502, 0xfd400000
USB Device: Apple Internal Keyboard / Trackpad, 0x05ac (Apple Inc.), 0x021a, 0x5d200000
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8205, 0x1a100000
Anyone know what is causing my problems? I thought it was heat so I downloaded a CPU and FAN temperature monitor and the CPU was getting VERY HOT at first so I then ramped-up the CPU FAN SPEED to maximum - it turns out the CPU FAN was not rotating well at low speed - since then I have cleaned and checked the fans and they all work as they should and blow on high(er) when the CPU temperature is above a certain level.

S.U.
Is there a kb article or something that would illuminate what to look for in these logs, or is it a matter of learning by osmosis?
Both. I am not skilled in reading logs. It is a very technical and time consuming task for the uninitiated (me!) In scanning a log I look for the backtrace and loading dependencies. The first item in the backtrace is usually the roadblock.
Beyond that you can look at the Technical Note TN2063: Understanding and Debugging Kernel Panics
Should make for good bedtime reading. Puts you right to sleep.
c

Display Problem with RowHeader of a Scroll Pane

Hi,
I am trying to display row headers for a table using another table
Here is the code
import javax.swing.*;
import javax.swing.table.*;
public class RowNumberHeader extends JTable {
protected JTable mainTable;
public RowNumberHeader(JTable table) {
    super();
    mainTable = table;
    setModel(new RowNumberTableModel());
    setRowSelectionAllowed(false);
    JComponent renderer = (JComponent)getDefaultRenderer(Object.class);
public int getRowHeight(int row) {
    return mainTable.getRowHeight();
class RowNumberTableModel extends AbstractTableModel {
    public int getRowCount() {
      return mainTable.getModel().getRowCount();
    public int getColumnCount() {
      return 1;
    public Object getValueAt(int row, int column) {
      return new Integer(row + 1);
}and then
        JTable displayTable = new JTable(...);
        scrollPane = new JScrollPane(displayTable);
        JViewport jvp = new JViewport();
        jvp.setView(new RowNumberHeader(displayTable));
        scrollPane.setRowHeader(jvp);the problem I have is that when a row is selected inside the row header, some rows go blank and you can see the selection is all screwed up. I tried setting the selection mode to ListSelectionModel.SINGLE_SELECTION but that didn't help.
A refresh of the entire screen (minimize/maximize) seems to resolve the problem. I am using jdk1.4.1 in Windows 2000.
Any ideas?
Sylvain

Again the problem is that when you click on the row headers, some row header rows go blank (completely white) so you can't see what they show.
ie say I have table
Row 1 - 1 2 3
Row 2 - 2 4 5
Row 3 - 5 7 7
Row 4 - 5 6 7where Row X is the row header. So for example, if you click on Row 2, you will get something like
Row 1 - 1 2 3
Row 2 - 2 4 5
      - 5 7 7
Row 4 - 5 6 7until the screen is refreshed or you click some other row header.
hmm ok, I added calling repaint on the table whenever a row is selected and at least the display problem goes away; however, the selected indexes from the event don't always match the index of the row selected. I think actually that may be the source of the display problem.
Here is the code I added in the constructor:
        getSelectionModel().addListSelectionListener(new ListSelectionListener()
            public void valueChanged(ListSelectionEvent e)
                System.out.println("Header table selection is: First = " + e.getFirstIndex() +
                                   " Last = " + e.getLastIndex());
                RowNumberHeader.this.repaint();
        });

Pink flickering display problem

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