Notebook display problem (multiplication)

Question

I am writing text to an existing log file with StreamWritter and Files.AppendAllTextMethod but it is writing garbage to file.

 using (FileStream fs = new FileStream((string)_logger.ConfigPath, FileMode.Append, FileAccess.Write))
        using (StreamWriter sw = new StreamWriter(fs))
        {
            sw.WriteLine(message);
        }

but the text I see in log file 汰⁺牷瑩⁥瑩汰⁺牷瑩⁥瑩

I am not sure what is the issue, and how can I get it fixed?

NOte : when am writing text to some other text file , it is working perfectly fine.

Thanks in Advance.

Solution 1

It could have multiple causes:

It only occurs when booting into Windows, not when booting a Linux LiveCD or during the POST: It is most likely a Windows driver conflict that is causing your display to malfunction.

It occurs always, also during the POST:

• Your (onboard) graphics card is malfunctioning, you'll have to replace the mainboard if it's an onboard card or the graphics card itself if it isn't.
• The (flat) cable or other connectors that are between your graphics card and the display is broken.

I'd recommend sending it in to LG for warranty if it is still under warranty. If not, contact your local tech guy or replace it yourself.

Judging from the picture you posted, it also happens at POST, so I think the latter is what's happening with you.

Solution 2

Well, at the end I think I figured out what is going on with the notebook. I've been looking into the issue and is very similar to some problems that HP notebooks have had some times as well as the XBox 360.

I think the problem is temperature related, the BGA package of the GPU got too hot and the soldering between the GPU and the motherboard gets cold (cold solder)

Because of that the computer start failing intermittent and now, after some time, is a full-time problem, I can't assure it yet, i guess that I will need to reball the GPU to make sure the problem go away, but that is a bit delicate because you need some tools and skills.

I leave here the most relevant information I found, just in case it can be useful for someone. I apologize because not all the information is in english language.

• La pantalla se divide en varias partes English
• TécnicosCLIC - Reballing Chip Gráfico - SP-360C YouTube
• Xbox 360 Reballing from Knights Gaming Repair
• VGA Reballing Kit

P.S. Thanks a lot to everybody for helping me :)

Solution 3

One question: Is this an intermittent fault?

A few suggestions: 1) Try it with an external monitor. If it works, then your problem is most likely cables or screen. If it is the same, then your problem is most likely graphics chip or drivers. 2) Delete your display adapter, reboot and re-install .

Comments

[Sayse]

what text are you trying to pass it? Are you sure it is utf8?

[Mohit]

I tried encoding later, initially there was no encoding parameter supplied, edited the question too!!

[Sayse]

Your question is still missing what text you are trying to write without this, its not possible to provide any kind of solution.

[Keith Payne]

What are you using to view the contents of the text file?

[AFract]

This is not garbage, it's chinese ;). Do you experiencing the same behavior with entirely new file ? What does message contains ? Have you checked your encoding ?

[Mohit]

Text is "Please Write here", it 's just for testing :) I am opening the file manually to view the content, and when am trying to write it to some other file, or entirely new file it is showing the text in english :)

[Ben]

Need to look at what is creating the file in the first place and if there is any data in this file already. E.g. if the file is being opened and is written to as a binary file or as an encrypted file, then after this you are appending some text, you may end up not being able to read the text.

[Gabriel Luci]

If you're just appending text, you might find File.AppendAllText is quicker and easier to use. You could consolidate all that code into just File.AppendAllText((string)_logger.ConfigPath, message);

[SubniC]

Hi, i think the warranty expired already... I have been checking, cleaning and moving the conectors and the cables inside without any clue or even any change in the display image. It happens at POST as well and the graphics card is integrated... so i think the fix is complicated :)

[Pylsa]

@SubniC You could try an external monitor, if that works properly, it's likely there's something wrong with the feed (e.g. the cables/connectors) to your display and not the graphics card itself.

[SubniC]

Hi, The problem was intermittent some time ago, after a while it becomes a full-time fault. I think the display is never going back to live again...

[SubniC]

@BloodPhilia I've tryed the external monitor but i was not able to configure it looks like windows doesn't recognize the external display.

[Pylsa]

@SubniC There should be an FN key to enable the external monitor...

[SubniC]

@BloodPhilia yes there is but it is not working, the screen gets black for a second and after get back to the notebook display.

[SubniC]

@BloodPhilia do you think that the GPU could got burn?

[Pylsa]

@SubniC It's possible... It could've been overheated. If that is the case, you still need a motherboard replacement.

[SubniC]

@BloodPhilia yes... i guess so... thanks for your help :)

[caffeinedependent]

@SubniC Did you try deleting and re-installing the display adapter?

[caffeinedependent]

@SubniCYou mention that you don't think your Fn key is working - I have an LG laptop and on my model you need to hold down Fn and press F7. Anyway, each time you press F7 it cycles through different configs. I don't know whether yours is the same but it should be either F7, F4 or F5, so try pressing the relevant button a few times to see if any of the configs works for your external monitor.

[SubniC]

I've been trying to make it work but i couldn't

[caffeinedependent]

No problem! Just hope you can sort it out without needing to replace the mobo, as that is usually not worth the cost.

[K. Pretorius]

how did you solve the problem in the end? I also have a LG E500 with exactly the same problem :(

[ganesh]

It also happens during POST. That is well before the OS and drivers get involved.

[Admin]

What are these steps intended to diagnose? Also: Do you realize this question is 7 years old? The computer has probably long since been discarded.