My i5 27-inch screen will show only a white or blue screen after boot up.

In every case, for every volume, even the Recovery Volume. Did the video card go belly-up? I have had it for 13 months and no, I didn't sign up for Apple Care. I always do, now.

Try booting into safe mode. Try running the Apple Hardware Test program, extended tests at least twice and then try running Rember.

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My 3GS shows only a white screen. Is it repairable?

Suddenly, my 3GS will show only a white screen. It appears to still buzz occasionally, so perhaps it continues to function. Is this a self-help problem, or do I need to have it professionally repaired?

Why don't you bring it in to Apple for evaluation? We users here have no way of examining your phone.

HT4824 My iPhone is running with ios 4.2.1 & current version of ios is 6.0.1 in this case how can i update my iPhone to ios 4.3.5? itune will show only latest version of ios.

My iPhone is running with ios 4.2.1 & current version of ios is 6.0.1 in this case how can i update my iPhone to ios 4.3.5? itune will show only latest version of ios.

If you have iPhone 3G, the latest and greatest is IOS 4.2.1.
If you have iPhone 3GS or later, you can only update to IOS 6.0.1.
For iPhone 5 and iPad mini, you can update to IOS 6.0.2.

My ipod model A1367 display shows only a white screen. why is it?

my ipod model A1367 display shows only a white screen. why is it? please help me im using apple product for the first time

Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- Try another cable
- Try on another computer
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar

Itunes shows only 4.3.5 update even after downloading itunes 10.5 on mac..

itunes shows only 4.3.5 update even after downloading itunes 10.5 on mac..

Problem solved.
In iTunes, I selected Backup from my iPod's contextual menu under Devices. I then did a restore and all the music is back. It only took a few minutes.
These choices are only available via the device contextual menu, not the main iTunes pull-down menus.

ISE machine authentication - only plug in to the network after booting

Hi experts.
I have recently deployed ISE with machine authentication.
However, when the machine is already plugged in to the switch before booting, the machine does not authenticate automatically. It isn't until I log on, using a local computer account, that 802.1X authentication occurs. Using wireshark, I have verified again that this authentication is MACHINE authentication, not user-authentication.
Is there a way to solve this problem, other than having my users unplug their computer and only plug in to the network after booting?
Eric

Hi Vattulu,
The method of machine access restriction will be used, because there is no a plan to use anyconnect NAM on the client environment, since the prerequisite for EAP-chaining is to use anyconnect.
Regards,
Eric

Black Screen After Boot up

My T420s (2 months old) recently has been giving me a black screen after boot up (no "Thinkpad" image is displayed during boot up). System totally unresponsive -- I have to push on/off button multiple times. Subsequent boot up usually OK. Sometimes once I'm up and running, upon entering sleep mode, the machine will not wake up.
I have adjusted power management setting and and up-to-date on all drives. HELP!!!

if this is constantly occurring this would mean something is wrong with the Thinkpad's hardware, since this laptop is fairly new, you should consider getting it fixed under warranty.
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

Centro, when Im on the internet no pictures will show only a small red and blue picture

I don't know what happend to my Centro. My son was playing with it (yeah I know mistake #1) and when I had gotten it back I went to log onto espn.com and none of the pictures would show only a small picture frame with what looks like a sun set over blue waters with a red sky. I went to other websites (cnn, flickr, and so on) but no pitures will show up. What could be the problem?
Post relates to: Centro (Sprint)
This question was solved.
View Solution.

Check your settings in Blazer. Sounds like you've changed it to "Fast Mode" for displays.
Tap the Lightning bolt icon at the top of Blazer, and see if it's set to Fast Mode. Change it to "Normal".
Pictures should load now.
WyreNut
Post relates to: Centro (AT&T)
I am a Volunteer here, not employed by HP.
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If my post has helped you, click the Kudos Thumbs up!
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Display shows only white screen after booting up

My computer froze while the screen saver was playing and I rebooted and now there is only a white screen. The apple apears and the grey circle spins but then it freezes and the display just stays white. I can still access all of the harddrives over my network so I am assuming it is just my video card. Any thoughts?

I doubt it's your video card, but if you want to test that theory, try the Apple Hardware Test.
Intel-based Macs: Using Apple Hardware Test

Gray screen after boot and blue screen with stripes

Hi, I have a MacBook Pro Mid 2011 with Mavericks (came with Snow Leopard).
History:
One day i was working and things were too slow. I tried to restart but it was taking too long to close all the programs. So I forced shut down by holding the power button. When I turned it on again, my problems begin.
Problem:
The Apple logo and the spinning wheel appear. After a while, both disappear and it freezes at gray screen. Some solutions I tried make the screen goes blue with black vertical stripes. In both cases, I have to force shut down.
Solutions I tried:
- Reset NVRAM
     It does reset, but nothing change
- Log in my Windows partition. I can't log
- Hold option key and choose recovery. Blue screen
- Recovery system by restart and press Command-R. Blue Screen.
- Safe boot by pressing Shift. Blue Screen
- Verbose by pressing Command-V. Restart and gray screen again.
- Single-user mode by pressing Command-S
     Tried to reapair hard drive:
          /sbin/fsck –fy
     Returns the message "** The volume Macintosh HD appears to be OK.". I restart and nothing change.
     Tried to change startup permissions:
          mount -uw /
          chown root /
          chmod 1775 /
          exit
     Restart and nothing change.
- Boot from a bootable USB flash drive
     Holding option key, I choose my flash drive with Ubuntu installed. It gives me 3 options: Use Ubuntu without installing, Install Ubuntu, Repair Disk      Errors (something like that). The 3 options go to the blue screen
     Flash drive with Mavericks. Blue screen.
-Boot from my Snow Leopard CD. Gray screen, restarting, gray screen.
I don't what else I can do. Is it a hardware problem? At first I thought it was some corrupted file. But is it a GPU or logic board problem? What else can I try?

I found this to work at least to get in and backup some files. It is VERY important to put these commands in EXACTLY as seen here, including spaces.
Boot into Single-User mode (Command-S while booting up)
Execute the following commands:
/sbin/fsck -fy /
/sbin/mount -uw /
mkdir /Disabled_System_Library_Extensions
cd /Disabled_System_Library_Extensions
mv /System/Library/Extensions/ATI* .
mv /System/Library/Extensions/AMD* .
touch /System/Library/Extensions
exit
I guess these two graphics extensions go bad quite often on Macbook Pro 15-inch. They are part of the logic board. The only problem I had was I still couldn't get into my computer any other way, and the graphics for Safari were messed up. Firefox was okay. Good Luck!
Here's the original thread:
http://apple.stackexchange.com/questions/120507/boot-hangs-on-grey-screen-even-w hen-booting-from-usb-drive-with-fresh-os-x-inst

Blue screen - after booting into Darwin/BSD

Hi,
after I had the problem of my iMac G5 only booting into Darwin/BSD (which I posted here: http://discussions.apple.com/thread.jspa?threadID=1093517&tstart=0), I followed the instructions for recreating the user accounts, as described here: http://discussions.apple.com/thread.jspa?threadID=320663&start=0&tstart=0
Now I'm able to get to the blue screen, and the system doesn't exit into Darwin/BSD any longer. However, the Setup Assistant doesn't start either.
I only see an empty blue screen (I guess it's the GUI base screen) and the menu bar. The menu bar only has to items: one menu 'loginwindow', which doesn't have any entries. And the Apple-logo menu, which has the following menu entries:
- About This Mac
- Software Update...
- Mac OS X Software...
- System Preferences...
- Dock >
- Location >
- Force Quit...
- Sleep
- Restart...
- Shot Down...
- Log Out System Administrator...
The 'Restart...' entry doesn't work. I can, however, launch the System Preferences window.
Tail command of /var/log/System.log shows:
configd[41]: WirelessConfigure: 88001003
kernel[0]: Registering For 802.11 Events
kerner[0]: [HCIController][setupHardware] AFH Is Supported
kernel[0]: ATY,Aphrodite2_A: vram [98000000:08000000]
mDNSResponder: Couldn't read user-specific Computer Name; using default bMacintosh-0014513219B8b instead
kernel[0]: ATY,Aphrodite2_B: vram [98000000:08000000}
mDNSResponder: Couldn't read user-specified local hostname; using default bMacintosh-0014513219B8.localb instead
/System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow: Login Window Application Started
loginwindow[141]: [Login.m:1867] Failed to launch /Applications/Server/Server Assistant.app/Contents/MacOS/Server Assistant (error -1)
mDNSResponder: Adding brows domain local.
Any recommendations on what to do next?
Thanks!
Torsten

Apologies, was a little vague. and as far as my profile goes i have loads of mac's here in the studio.
using MBP latest model, Snow Leopard with latest updates.
1. boot up in windows XP SP3 (bootcamp NTFS formatted 32GB partition) - all ok
2. shut down windows and re boot in OSX
3. boots up but fails to complete and hangs on blue screen (just prior to desk top picture loading)
4. press and hold power button to shut down
5. reboot in OSX - boots up fine this time

Blank screen after boot - After update.

Hello!
I have the following problem with my arch dist:
I recently - and after several weeks without touching it - updated my arch but, after rebooting, the laptop screen went blank just after booting up. Using the fallback boot resulted in the same ... well.. result. This is as much as i can describe since i don´t know how to access a comand line in this context, in order to test/check what´s going on. Anyone can help me?
Thanks

Assuming you are using grub, you can edit /boot/grub/menu.lst when grub is loading, in order to force it to not boot into X. On boot, select your normal arch linux entry from to boot list (don't press enter) and type e to edit the menu.lst Press e again on the kernel line and append this number:
kernel /vmlinuz26 root=/dev/sda3 resume=/dev/sda5 ro 1
Press enter and then you boot it by pressing b. It is the number at the end that defines the run level, in this case 1 (single user). This will allow you to boot into console as root.
Edit: I meant run level 1 (single user)
Last edited by roygbiv (2011-06-24 20:08:01)

How can i make that in the ComboBox control it will show only part of each item name without the Win32_ in the start of each item ?

This is my form1 code:
using System;
using System.Collections;
using System.Management;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace GetHardwareInfo
public partial class frmMain : Form
public frmMain()
InitializeComponent();
cmbxOption.SelectedItem = "Win32_Processor";
cmbxStorage.SelectedItem = "Win32_DiskDrive";
cmbxMemory.SelectedItem = "Win32_CacheMemory";
cmbxSystemInfo.SelectedItem = "";
cmbxNetwork.SelectedItem = "Win32_NetworkAdapter";
cmbxUserAccount.SelectedItem = "Win32_SystemUsers";
cmbxDeveloper.SelectedItem = "Win32_COMApplication";
cmbxUtility.SelectedItem = "Win32_1394Controller";
private void InsertInfo(string Key, ref ListView lst, bool DontInsertNull)
lst.Items.Clear();
ManagementObjectSearcher searcher = new ManagementObjectSearcher("select * from " + Key);
try
foreach (ManagementObject share in searcher.Get())
ListViewGroup grp;
try
grp = lst.Groups.Add(share["Name"].ToString(), share["Name"].ToString());
catch
grp = lst.Groups.Add(share.ToString(), share.ToString());
if (share.Properties.Count <= 0)
MessageBox.Show("No Information Available", "No Info", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
foreach (PropertyData PC in share.Properties)
ListViewItem item = new ListViewItem(grp);
if (lst.Items.Count % 2 != 0)
item.BackColor = Color.White;
else
item.BackColor = Color.WhiteSmoke;
item.Text = PC.Name;
if (PC.Value != null && PC.Value.ToString() != "")
switch (PC.Value.GetType().ToString())
case "System.String[]":
string[] str = (string[])PC.Value;
string str2 = "";
foreach (string st in str)
str2 += st + " ";
item.SubItems.Add(str2);
break;
case "System.UInt16[]":
ushort[] shortData = (ushort[])PC.Value;
string tstr2 = "";
foreach (ushort st in shortData)
tstr2 += st.ToString() + " ";
item.SubItems.Add(tstr2);
break;
default:
item.SubItems.Add(PC.Value.ToString());
break;
else
if (!DontInsertNull)
item.SubItems.Add("No Information available");
else
continue;
lst.Items.Add(item);
catch (Exception exp)
MessageBox.Show("can't get data because of the followeing error \n" + exp.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Information);
private void RemoveNullValue(ref ListView lst)
foreach (ListViewItem item in lst.Items)
if (item.SubItems[1].Text == "No Information available")
item.Remove();
#region Control events ...
private void cmbxNetwork_SelectedIndexChanged(object sender, EventArgs e)
InsertInfo(cmbxNetwork.SelectedItem.ToString(), ref lstNetwork, chkNetwork.Checked);
private void cmbxSystemInfo_SelectedIndexChanged(object sender, EventArgs e)
InsertInfo(cmbxSystemInfo.SelectedItem.ToString(), ref lstSystemInfo, chkSystemInfo.Checked);
private void cmbxUtility_SelectedIndexChanged(object sender, EventArgs e)
InsertInfo(cmbxUtility.SelectedItem.ToString(), ref lstUtility, chkUtility.Checked);
private void cmbxUserAccount_SelectedIndexChanged(object sender, EventArgs e)
InsertInfo(cmbxUserAccount.SelectedItem.ToString(), ref lstUserAccount, chkUserAccount.Checked);
private void cmbxStorage_SelectedIndexChanged(object sender, EventArgs e)
InsertInfo(cmbxStorage.SelectedItem.ToString(), ref lstStorage, chkDataStorage.Checked);
private void cmbxDeveloper_SelectedIndexChanged(object sender, EventArgs e)
InsertInfo(cmbxDeveloper.SelectedItem.ToString(), ref lstDeveloper, chkDeveloper.Checked);
private void cmbxMemory_SelectedIndexChanged(object sender, EventArgs e)
InsertInfo(cmbxMemory.SelectedItem.ToString(), ref lstMemory, chkMemory.Checked);
private void chkHardware_CheckedChanged(object sender, EventArgs e)
if (chkHardware.Checked)
RemoveNullValue(ref lstDisplayHardware);
else
InsertInfo(cmbxOption.SelectedItem.ToString(), ref lstDisplayHardware, chkHardware.Checked);
private void cmbxOption_SelectedIndexChanged(object sender, EventArgs e)
InsertInfo(cmbxOption.SelectedItem.ToString(), ref lstDisplayHardware, chkHardware.Checked);
private void chkDataStorage_CheckedChanged(object sender, EventArgs e)
if (chkDataStorage.Checked)
RemoveNullValue(ref lstStorage);
else
InsertInfo(cmbxStorage.SelectedItem.ToString(), ref lstStorage, chkDataStorage.Checked);
private void chkMemory_CheckedChanged(object sender, EventArgs e)
if (chkMemory.Checked)
RemoveNullValue(ref lstMemory);
else
InsertInfo(cmbxMemory.SelectedItem.ToString(), ref lstStorage, false);
private void chkSystemInfo_CheckedChanged(object sender, EventArgs e)
if (chkSystemInfo.Checked)
RemoveNullValue(ref lstSystemInfo);
else
InsertInfo(cmbxSystemInfo.SelectedItem.ToString(), ref lstSystemInfo, false);
private void chkNetwork_CheckedChanged(object sender, EventArgs e)
if (chkNetwork.Checked)
RemoveNullValue(ref lstNetwork);
else
InsertInfo(cmbxNetwork.SelectedItem.ToString(), ref lstNetwork, false);
private void chkUserAccount_CheckedChanged(object sender, EventArgs e)
if (chkUserAccount.Checked)
RemoveNullValue(ref lstUserAccount);
else
InsertInfo(cmbxUserAccount.SelectedItem.ToString(), ref lstUserAccount, false);
private void chkDeveloper_CheckedChanged(object sender, EventArgs e)
if (chkDeveloper.Checked)
RemoveNullValue(ref lstDeveloper);
else
InsertInfo(cmbxDeveloper.SelectedItem.ToString(), ref lstDeveloper, false);
private void chkUtility_CheckedChanged(object sender, EventArgs e)
if (chkUtility.Checked)
RemoveNullValue(ref lstUtility);
else
InsertInfo(cmbxUtility.SelectedItem.ToString(), ref lstUtility, false);
private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
linkLabel1.LinkVisited = true;
System.Diagnostics.Process.Start("http://www.test.net");
#endregion
What i get is in the end that in the ComboBox in this case i call it cmbxNetwork i see in it many items all start with Win32_ For example when i click on ComboBox i see the first item is: "Win32_NetworkAdapter"
Instead Win32_NetworkAdapter i want to see in the ComboBox only: NetworkAdapter But when i select the item it should be selected as Win32_NetworkAdapter but the user should see and select only NetworkAdapter.
I want to remove as test from the ComboBox items the Win32_ But only that the user will see it without Win32_
Also in the constructor when i'm doing now: cmbxNetwork.SelectedItem = "Win32_NetworkAdapter"; so instead if i'm doing: cmbxNetwork.SelectedItem = "NetworkAdapter"; it will be enough. THe program will use the "Win32_NetworkAdapter";
but again what i see and user in the ComboBox as item is only the NetworkAdapter

Hi Chocolade1972,
>> I want to remove as test from the ComboBox items the Win32_ But only that the user will see it without Win32_ Also in the constructor when i'm doing now: cmbxNetwork.SelectedItem = "Win32_NetworkAdapter"; so instead if i'm doing:
cmbxNetwork.SelectedItem = "NetworkAdapter";
Do you mean that you want the ComboBox show the value of “NetworkAdapter” in the text, but when you refer the value of the cmbxNetwork.SelectedItem, it will be “Win32_NetworkAdapter”? If so, I am afraid that you need create your own ComboboxItem and override
the ToString() method to return the text you want.
You could modify the code below for your own achievement.
public partial class Form0417 : Form
public Form0417()
InitializeComponent();
public class ComboboxItem
public string Text { get; set; }
public object Value { get; set; }
public override string ToString()
return Text;
private void Form0417_Load(object sender, EventArgs e)
ComboboxItem item1 = new ComboboxItem();
item1.Text = "Processor";
item1.Value = "Win32_Processor";
ComboboxItem item2 = new ComboboxItem();
item2.Text = "DiskDrive";
item2.Value = "Win32_DiskDrive";
cmbxOption.Items.Add(item1);
cmbxOption.Items.Add(item2);
//MessageBox.Show((cmbxOption.SelectedItem as ComboboxItem).Value.ToString());
private void cmbxOption_SelectedIndexChanged(object sender, EventArgs e)
MessageBox.Show((cmbxOption.SelectedItem as ComboboxItem).Value.ToString());
Best Regards,
Edward
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My computer show only a white screen and safari

My mac start up good butit only start with safari is the only programm that run

Why don't you bring it in to Apple for evaluation? We users here have no way of examining your phone.

Can Web Performance Test work on AJAX or Javascript Project which will show only one URL for all the pages?

Hi there,
I'm working on testing a AJAX and JavaScript Project which has several pages but all in the same URL. I need to test some attribute on the page or parameter past by AJAX or Javascript. Can Web Performance Test work to get what I want?
Thanks,

Hello,
Thank you for your post.
Web performance test is used to test if a server responses correctly and the response is consistent with what we expected. And we test the response speed, the stability and scalability.
The Web Performance Test Recorder records both AJAX requests and requests that were submitted from JavaScript, but
web test does not execute JavaScript. I am afraid that you can’t use web test to test parameter past by AJAX or JavaScript.
Please see:
Web Performance Test Engine Overview
About JavaScript and ActiveX Controls in Web Performance Tests
From the first link, “Client-side scripting that sets parameter values or results in additional HTTP requests, such as AJAX, does affect the load on the server and might require you to manually modify the Web Performance Test to simulate the scripting.”
If you want to execute the function typically performed by script in web test, you need to accomplish it in coded web performance test or a web performance test plugin. Please see:
How to: Create a Coded Web Performance Test
How to: Create a Web Performance Test Plug-In
I am not sure what the ‘some attribute on the page’ is. If you mean that you want to test those controls on the page, you can do coded UI test, which can test that the user interface for an application functions correctly. The coded UI test performs actions
on the user interface controls for an application and verifies that the correct controls are displayed with the correct values. You can refer to this article for detailed information about code UI test:
Verifying Code by Using Coded User Interface Tests
Best regards,
Amanda Zhu [MSFT]
MSDN Community Support | Feedback to us
Develop and promote your apps in Windows Store
Please remember to mark the replies as answers if they help and unmark them if they provide no help.

My i5 27-inch screen will show only a white or blue screen after boot up.

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