Strange X220 with Fn+F4 Behaviour

I have encountered a new problem when using Fn+F4 key system does goes into sleep (Hiber) and wakes up as expected but here is strange situation IT SIMPLY WONT SHUTDOWN I left the unit with "LOGGING OFF" black screen for 30 minutes still it wont shutdown only solution was to depress power button. Please advise what's going on here I am little concerned..

If you didn't change PM event settings, first of all open task manager and check out tasks, processes, services. May be you'll find out some strange items.
Be sure you've got the last version of Lenovo PM driver and Hotkey Features, delete and reinstall them in sequence as shown above.
x220 | i5-2520m | Intel ssd 320 series | Gobi 2000 3G GPS | WiFi
x220 | i5-2520m | hdd 320 | Intel msata ssd 310 series | 3G GPS | WiFi
Do it well, worse becomes itself
Русскоязычное Сообщество English Community Deutsche Community Comunidad en Español

Similar Messages

Strange behavior with NI 9401

Hi everyone!
I think I have a strange problem with the NI 9401 modules.
My hardware is a CompactRIO and I'm using Labview 8.0.
I'm reading a 13 bit encoder with two NI 9401 modules: the first for 8 input channels and the second for the other remaining 5. input channels.
13 bits means that the slots in the outest part of the counter are 8192 so i expect my encoder to count up/down till 8192. What instead happens is that the counter goes up to 7934, then suddenly to 7860, then from 0 to 254 and then finally to 0 again and up again to 7934 and the story always goes on like this. I put the true/false outputs of the encoder in a boolean array and then, from the boolean array to a number. (see the attacched VI)
Here's how I devided the inputs between the two modules
-NI 9401 2 :
DIO0= 2^0
DIO1= 2^1
DIO2= 2^2
DIO3= 2^3
DIO4= 2^4
DIO5= 2^5
DIO6= 2^6
DIO7= 2^7
- NI 9401
DIO0= 2^8
DIO1= 2^9
DIO2= 2^10
DIO3= 2^11
DIO4= 2^12
When running the VI I suddenly realized that every time all the input for each modules should be true ( i.e. five leds on for the second module or eight leds on for the first) , the value of all the inputs goes immediately to 0 i.e. all the leds switch off . To make an example: I see 4 leds on for the second module but when comes the time of the fifth, all the leds switch off so it means all the inputs are false which i can't understand. I tried to change the pin assignments in order to read the same inputs from different pins and this did'nt change anything. I tried to use only 4 inputs for the second module and this didn't work. Every time all the inputs for each module should be true it goes up to (n-1) inputs true and the n inputs zero. More information about this strange behaviour: while a normal false input produces a voltage of 0.036 V the voltage I measured from the last pin that should be true and that should give me all the leds on for one module, produces instead -0.146 V.
This is everything I tried in order to solve this problem but now I'm at a dead end.
Could it be a kind of module setting which I didn't consider?
Due to all the attempts I've made I excluded any disfunction of the encoder so I focused my attention to the modules.
Does anyone of you have any idea?
Thanks!!
Rob_F
Attachments:
Prova_encoder2.lvproj ‏14 KB
Prova_encoder2.vi ‏155 KB

Thanks a lot JMota!
We just sent back the encoder to the company who sells them. They want to be sure it's not a product defect or, even worse, a problem of conflict with the NI 9401.
In the meanwhile we built up the acquisition VI for the accelerometer and the encoder. One while loop sends the accelerometer data to a DMA FIFO and another parallel while loop is used to read the encoder outputs and send these data to another DMA FIFO. I did this because I know only 1 DMA FIFO can be used for each channel. When I read the data with two FIFO.read with two parallel loops in the Real-Time I discovered that I can't make them work indipendently as i thought i.e. reading settings of one FIFO.read ( number of elements and loop timing) affects also the other FIFO.read .
Any explanation for this behavior?
Thanks again JMota!

Strange problem with virtual machines backup (Hyper-V 2012R2)

Hi
I have a strange problem with backup of virtual machines in one of my Hyper-V environments. Let me describe how does it looks like: There are two physical servers - HP DL360 G8. They are used as hosts for four virtual machines - domain controllers in two domains.
Each of them runs one DC in every domain. I've configured backup "inside" every virtual machine (with Windows Server Backup tool), in its operating system, because domain controllers should have their system state, regularly backuped, etc. Backup
is made on the network share - all machines to the same server as destination. And now the case - two virtual server are backuped as expected - the operation takes 3 - 4 minutes and is always succeded. But in case of two remaining it looks as below:
- Backup operation starts (is scheduled).
- Volume shadow copy is made.
- The first partition of VM starts to be copied. It's Windows 2012 R2 Generation2 VM, so it has EFI, Recovery and C: partition. EFI is as first and at this moment backup stucks for a 2-3 hours! Progress of copying is 0%. After for example 3 hours this partition
is completed and starts the next (disk C:). And again - it freezes for a few hours and suddenly is pushed. As a result the backup is made successfully, but it takes for example 10 hours.
Both "dodgy" VMs are on separated hosts. All four of them were installed in the same time. I tried to change destination to locally connected disk, but no result. It's interesting as well, that after rebooting VM, the first backup is made normally,
but every next has described problem again. In EventLog I can't find any errors, I don't know how to diagnose such case precisely, etc. Have you got idea what can cause such behaviour or where on the server should I look for some hints?
Thanks
Marcin

Hi Marcin,
>>that after rebooting VM, the first backup is made normally, but every next has described problem again.
It shouldn't happen .
To narrow this issue down , Please try to backup an Gen1 VM and check the result .
Best Regards
Elton JI
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place.

Strange issue with WEBI schedule Report

Hi All,
I have a strange issue with schedule WEBI reports, a schedule report runs for Hours , i reschedule it again by deleting the instance and the schedule report never got succeed even after running for hours.
Any idea???
regards

Hi Manoj,
1. Try to put some filters in the report and then run the report. if it takes less time, then probably your query is fetching very large data.
2. MDX query error may be the reason , this error come when a query runs endless, please try running the query 2-3 times, or when load on server is less.
Hope this will help,
Anamika.

Strange issue with RAM upgrade: It works but it doesn't! Please help.

Hello Everyone,
I have a very strange issue with my iMac since upgrading my RAM from 4 to 12 gig. When I first installed the new RAM it booted up and ran great. The next time I went to boot the iMac up it swtiched on but didn't get as far as the first white boot up screen. I tried turning it off and on a few times using the power on/off button but still no success. I decided to remove the RAM and reseat it. The computer then booted up again fine. Here's the problem though: when I went to switch my iMac on the next day it wouldn't boot up. Again, I took the RAM out and put it back in and the iMac booted up fine. I've checked the status of the RAM in the system profiler and it reports that everything is OK. So, I'm at a loss. Obviously, I don't want to go through this process every time I want to start up my Mac. Any ideas/solutions would be very gratefully received.
Many thanks in advance.

I completely agree with you. It will be one of the 3 issues you outline. The machine was bought brand new and has never given me a problem. It is just the introduction of the new RAM that has started a problem. However, I did just risk a restart and it booted up fine. I don't know if a restart is any different to shutting down and then pressing the on/off button to start the computer. Maybe my last reseating has done the trick or maybe my thinking is flawed because restarting involves a different process to booting up by pressing the on/off button. I don't know.
In the part of the world I'm sitting in it's night time now so I will leave the diagnostics running and check the results in the morning. I hope the issue is now resolved anyway. This sort of thing takes me back to my dark PC days although in this case I know it's probably not the Mac's fault.
Thanks again. Very much appreciated.

Strange issue with rights of account, used by SSIS (Foreach Loop Container does not return file names without Admin rights on server)

Hello everyone.
Faced very strange issue with account, which is used to run SSIS package.
The specific package uses Foreach Loop Container to retrieve file names within the specified folder, and put them into Import file task.
The package is set up to run under specific service account. This service account is given all permissions (Full control) to the folder where source files reside.
So the issue is: SSIS package fails to execute this task (Foreach Loop Container and then Import), and shows that no files are found in the directory (although files ARE there).
Once we're adding the service account into local Administrators group on the SQL Server, it works! Removing - does not work again. We cannot leave the service account as SQL server's admin as it's prohibited by our IT policies, and is just a bad practice.
Any ideas, please?
MCP

Here's the real log output:
Date 16.04.2014 12:47:09
Log Job History (RU-BW: Update)
Step ID 1
Server Server
Job Name RU-BW: Update
Step Name bw_import_cust_master_data
Duration 00:00:02
Sql Severity 0
Sql Message ID 0
Operator Emailed
Operator Net sent
Operator Paged
Retries Attempted 0
Message
Executed as user: service_account Microsoft (R) SQL Server Execute Package Utility Version 10.50.4286.0 for 64-bit Copyright (C) Microsoft Corporation 2010. All rights reserved. Started: 12:47:09 Error: 2014-04-16 12:47:11.45
Code: 0xC0202070 Source: bw_import_cust_master_data Connection manager "Input" Description: The file name property is not valid. The file name is a device or contains invalid characters. End Error Error:
2014-04-16 12:47:11.47 Code: 0xC0202070 Source: bw_import_cust_master_data Connection manager "Input" Description: The file name property is not valid. The file name is a device or contains invalid characters. End
Error Error: 2014-04-16 12:47:11.48 Code: 0xC0202070 Source: bw_import_cust_master_data Connection manager "Input" Description: The file name property is not valid. The file name is a device or contains invalid
characters. End Error Error: 2014-04-16 12:47:11.48 Code: 0xC020207E Source: Import file Flat File Source [1] Description: The file name is not valid. The file name is a device or contains invalid characters.
End Error Error: 2014-04-16 12:47:11.48 Code: 0xC004701A Source: Import file SSIS.Pipeline Description: component "Flat File Source" (1) failed the pre-execute phase and returned error code 0xC020207E.
End Error DTExec: The package execution returned DTSER_FAILURE (1). Started: 12:47:09 Finished: 12:47:11 Elapsed: 2.324 seconds. The package execution failed. The step failed.
MCP

Strange Problems With Display and Permissions Since 10.5.1 update.

Since I've done the 10.5.1 update I have been having a strange problem with my desktop and dock displays. On my desktop I have these strange lines that appear any time I log in or open any application, the lines never go away and change locations on the screen once I open an application or move a window. My dock has the reflective shelf for about half of it, the rest is a dull grey. I've also had problems with verifying and repairing my permissions. I can never actually complete either permissions task. I've used some third party apps, they always fail as well. The only time I can actually repair my permissions is by booting in to single user mode and doing a fsck -f command. When I boot back in to Leopard and try to use the Disk Utility to repair, it continues to fail.
I'm not sure if the video problem I am having stems from a permissions issue or possibly a corrupt video driver. Either way, I've done a lot research and haven't found anyone with the same problems I have been having so I thought I would give these forums a shot.
I am using a PowerMac G4 Quicksilver with dual 800Mhz, 1.5gb RAM, and a GeForce4 Ti 4600 128mb video card.
Here is a screen shot of the line and dock problem.
Here is a screen shot of my "About This Mac.
If anyone could lend some light on this issue, I would greatly appreciate it.
Thanks
Jeff

you can pile it on this: http://discussions.apple.com/thread.jspa?threadID=1246649&tstart=0
btw - no solution yet.

X220 with Windows 7 (64 bit) Pro using SSD Samsung 840 (500G) drive

I am using a Thinkpad X220 (4291) laptop with 8 gigs of RAM. I recently switched my HDD for an SSD (Samsung 840 which is 500G). I have been following the posts and have set the BIOS accordingly as well as updated firmware for the drive. I use Crystal Disk Mark for measuring the read/write of the drive and am not getting the speeds I should. I currently get:
CrystalDiskMark 3.0.2 (C) 2007-2013 hiyohiyo
                           Crystal Dew World : http://crystalmark.info/
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
           Sequential Read :    93.514 MB/s
          Sequential Write :    95.135 MB/s
         Random Read 512KB :    89.534 MB/s
        Random Write 512KB :    89.051 MB/s
    Random Read 4KB (QD=1) :    12.735 MB/s [ 3109.1 IOPS]
   Random Write 4KB (QD=1) :    29.898 MB/s [ 7299.3 IOPS]
   Random Read 4KB (QD=32) :    85.220 MB/s [ 20805.6 IOPS]
Random Write 4KB (QD=32) :    54.319 MB/s [ 13261.4 IOPS]
Test : 1000 MB [C: 5.3% (24.6/465.8 GB)] (x5)
Date : 2013/01/14 13:23:26
    OS : Windows 7 Professional SP1 [6.1 Build 7601] (x86)
As you can see the speed is drastically slower than advertised. (Should get 504 Mbits/sec read)
Any thoughts?
Thanks,
Jamie

I have an X220 with W8 Pro and Samsung 840 Pro. Getting 528 read and 474 sequential write.   Did you install the Samsung Magician software and update the firmware on the SSD?
Samsung Magician will also provide a speedtest you can check against crystal disk mark.
Lots of sites for optimizing SSD settings but unless it is a firmware issue I don't know why you would get such slower speeds.
Kent

Strange issue with external monitor, only working when external speakers plugged in (using Thunderbolt to VGA adaptor)

Hey – I am having a very strange issue with my external monitor; where it only works if my external speakers are plugged in and connected.
I am using a late 2011 Macbook pro, running Mavericks 10.9.4, along with an MBox 2 (USB Audio Interface), and two powered speakers (KRK Rokit 5). This setup has had no issues. I have just acquired an external monitor (Benq T2200HD), which I am using with a thunderbolt to VGA adaptor (a cheap Chinese knockoff adaptor).
To start - I plugged the monitor in with the thunderbolt adaptor, and it powers up and works fine. However, there is a nasty buzz coming from the speakers. I did some research and it looks like a simple ground loop issue. I did a bit of troubleshooting, and this is where things get weird.
What I found is - If I unplug the MBox, the monitor loses signal from the computer (displaying ‘No Signal Detected!’). Further, if I keep the MBox plugged in, however unplug both the cables from the MBox to the speakers, the monitor loses signal. It doesn’t matter if the speakers are turned off, however they need to be plugged in (or the monitor loses signal). Weirder still, I can unplug the MBox, however the monitor will work if I plug in the speakers through my macs headphone jack.
Simply put, the monitor only works if there is a direct connection between the computer, the speakers, and the power source. What is going on here? Is the monitor grounding through the computer port, to the speakers (I don’t know how this works, is this possible?). Could it somehow be the cheap VGA adaptor I am using?
Some other information:
- Everything is plugged into the same multi-box for power. I have tried plugging things into separate sources, and the result is the same.
- If I unplug the thunderbolt adaptor, then the speaker noise disappears straight away.
- The ground noise doesn’t appear in my headphones, which are plugged into the MBox.
Any information would be great – am I missing something here, or is this genuinely weird?

Well, I went back into Best Buy to test on 3 other laptops (2 Asus, and their floor model for this Sony). It seems to be doing the same problem so at least I was able to rule out broken hardware issue on my particular laptop.
Here's what I did to test:
Since I couldn't really install Adobe Premiere on their machines, I used the DVIO software (http://www.carr-engineering.com/dvio.htm) and a 5 min clip I captured. I transferred onto their machines, hooked up my Sony D8, and attempted to play the video. It would play for 15 seconds and then stop and jitter with a loud noise (like it does on my laptop). I even tried changing each machine's firewire driver to the legacy one and same results. I pulled a brand new 4 pin to 4 pin firewire cable off their shelf and still the same problem.
I think I've nailed it down to Win7x64 bit Home Edition not playing nice with Firewire driver. Very annoying. I can't find any concrete evidence of this from other users on any of the forums that have my particular problem, but from my own testing, it's all I can conclude.
I have 2 other things I can try:
1. Opening the laptop and looking at the firewire to maybe find appropriate driver (ugh, I don't want to have to open this thing up).
2. Upgrading to Win7x64bit Pro and possibly testing with XP on the new MS Virtual PC (http://www.microsoft.com/windows/virtual-pc/). I can't do it with my Home edition apparantly.
Who needs to view video on an external TV anyways....sheeesh...(scarcasm).
Tim

I am having strange issue with my apple tv...i set up pictures to scroll through to the tv using home sharing. Now album covers are interspersed with my pictures. I have been using apple tv for a while and never had this happen before

I am having strange issue with my apple tv...i set up pictures to scroll through to the tv using home sharing. Now album covers are interspersed with my pictures. I have been using apple tv for a while and never had this happen before

Are you watching this content though iCloud or though from iTunes on your local computer? If it is from iCloud have you tried downloading the content to iTunes and watching it on ATV from that source to see if it still happens? This is geerally a much more reliable way to view the content. Easer to fast forward and rewind too.
- I have a stable internet connection
Clearlly you don't
>(Ive tested on other devices)
Which does not tell you anything about the specific connnection from ATV to iCloud.
>I am able to stream Netflix problem free from my AppleTV without so much as a hicup
Again which does not tell you anything about the specific connnection from ATV to iCloud.
>- I am able to download the episodes to my phone, ipad, and computer without any issues
Again which does not tell you anything about the specific connnection from ATV to iCloud. It does remove your ISP throattly traffice as a possible cause though. So that is good.
Have you checked your wireless rounter? Tried doing the factory restor on it? Upgrading it's firmware? Is it and or ATV getting extreamly hot when this problme happens?

Strange problem with Adobe Acrobat X (crash without a trace)

Hi,
I have a strange problem with Adobe Acrobat. It happens totally randomly, it leaves no signs in system logs.
What is happening: during my work Adobe Acrobat sudennly crashes. After a crash I cannot run it again - system seems to do something for a second, but then nothing happends. When i look into taks manager - there are no processes of Acrobat.exe. It just doesn't want to run. What I need to do is to reinstall whole Adobe Acrobat - which requires restart.
I've already tried to restart system after crash, it doesn't help - reinstall is required.
Sometimes everyting is fine for a 3 months, sometimes crash happens a week after the previous one. It also happens in very different situations (somtimes while opening a file, sometimes when doing something simple, sometimes in more complex tasks).
Has anyone encountered a similar problem?
Acrobat version: 10.1.1
System info: Windows 7 64 bit

Hi Kelvin,
Please let me know what OS version you are using.
The error also shows OS requirements not met.
Futher please try the steps below :
> Enable the hidden Admin Account on Windows 7 ( Ref : http://www.howtogeek.com/howto/windows-vista/enable-the-hidden-administrator-account-on-wi ndows-vista/ )
> Disable all Non-Microsoft Startup Services. (Ref : http://helpx.adobe.com/x-productkb/global/disable-startup-items-services-windows.html )
> Disable all the Antivirus softwares like CA, Norton,Mc Afee etc. temporarily from the computer.
Reboot and try installing in the new enabled Admin user account and check.
Please refer the Kb Doc : http://helpx.adobe.com/creative-suite/kb/error-exit-6-exit-7.html.
Also see Troubleshoot with install logs | CS5, CS5.5, CS6 - http://helpx.adobe.com/creative-suite/kb/troubleshoot-install-logs-cs5-cs5.html for information on how to review your installation logs
Regards,
Rave

Strange problem with Subviews on 1.0 Beta

Hi,
I'm having a strange problem with SubViews on 1.0 Beta. I'm not sure If I'm being stupid and have done something wrong, or if there's a problem here.
My application is directly based on one of the examples, so the structure etc is almost identical. I've simplified the files below to avoid confusing the issue.
The default landing page (greeting.jsp) looks like this:
<%@ taglib declarations for HTML and CORE taglibs %>
<HTML>
<HEAD><title>Insulation Layer Demo</title></HEAD>
<body bgcolor="white">
<f:view>
<jsp:include page="sysstatus.jsp" />

</f:view>
</body>
</HTML>
sysstatus.jsp looks like this:
<%@ taglib declarations for HTML and CORE taglibs %>
<f:subview id="SystemStatusView">
<h:form id="systemStatusForm">
<h:selectboolean_checkbox id="System1Available" value="#{SystemStatus.system1Available}"/>System 1 
<h:selectboolean_checkbox id="System2Available" value="#{SystemStatus.system2Available}"/>System 2
<h:command_button id="submit" action="success" value="submit" />
</h:form>
</f:subview>When I view this page, the checkboxes all seem to work okay (in that their state is preserved across calls etc), but the formatting is very screwy. The resulting page looks something like:
<chkbox1> <chkbox2> <Submit>
System 1
System 2
<Other HTML content from greeting.jsp>When I look at the HTML source code being generated, it is genuinly being generated as above, that is, all the form tags first, and then the rest of the content. Interestinly, I tried adding a ${SystemStatus.system2Available} into the body text, and it was rendered as literal text (i.e. not evaluated as EL), which is very curious -- makes me wonder if the included file is included as text, rather than JSP, although the custom taglibs and <f:form> tags etc are not in the generated HTML.
If I lift all the content between the <h:form> tags (inclusive) out of sysstatus.jsp and put it in greeting.jsp in place of the <jsp:include> tag, all is well.
Any ideas? All help gratefully recieved!
Thanks,
Paul

Personally, I think it is a bug in the rendering model of JSF itself because if you include any non-JSF tags, they don't get rendered according to my understanding of the what the spec says (in the location the tags are written).
The only workaround that I could come up with is to use straight JSF tags in all of your layers. Things are then rendered the way that they "should" be rendered.
You could try wrapping all of your HTML tags in <f:verbatim> tags and see if that helps.
Good luck!
David

Strange problem with the mail app on an iPad

I've got a bit of a strange problem with the mail app on an iPad - it's sending and receiving mail ok but won't let you delete mail. If you keep at it, it appears as if you have deleted mail (though takes a very long time as you just have to keep deleting it over and over again) - but the size of the app still keeps going up - reached 600mb so far, even though there is hardly any mail or attachments (goes up quite a lot each time you try to delete anything) - any idea what's causing this and how I can fix it?
It occasionally comes up with a dialogue panel saying to check my account settings, but I have checked those and they are fine. The little 'loading' icon just keeps spinning constantly too.

go to Settings > Mail > your account > Advanced > Move Discarded Messages Into
and make sure that Deleted Mailbox is ticked, and not Archive Mailbox
You can also adjust how long the deleted mail stays in the trash immediately below that.
If you are talking about a gmail account, you may also have to login to your account on the gmail server and update the settings there. This is what Barney previously posted about that:

Strange problem with ACLs

Hi,
I have just migrated an oracle database from 11.1.0.7 on Win Server 2003 to 11.2 on Linux 64 bit. I am having a strange problem with ACLs - I can create the ACL but when I perform either of the following two commands:
SELECT * FROM DBA_NETWORK_ACLS
or
SELECT * FROM NET$_ACL
I get no rows returned. The ACL exists somehow because if I try and create it again I get the error that it exists. Has anyone got any advice here? Something is out of sync and I need to know how to fix it up.
Thanks
Adam

BEGIN
DBMS_NETWORK_ACL_ADMIN.CREATE_ACL (
acl => 'email_server_acl.xml',
description => 'Network connection Email Server',
principal => 'MAIL',
is_grant => TRUE,
privilege => 'connect');
END;
PL/SQL procedure successfully completed.
select * from DBA_NETWORK_ACLS;
(no rows)
BEGIN
DBMS_NETWORK_ACL_ADMIN.CREATE_ACL (
acl => 'email_server_acl.xml',
description => 'Network connection Email Server',
principal => 'MAIL',
is_grant => TRUE,
privilege => 'connect');
END;
ORA-31003: Parent /sys/acls/ already contains child entry email_server_acl.xml
ORA-06512: at "SYS.DBMS_NETWORK_ACL_ADMIN", line 252
ORA-06512: at line 2
Edited by: Adam J. Sawyer on 15/04/2011 17:08

Strange issue with external monitor, only working when external speakers plugged in

Hey – I am having a very strange issue with my external monitor; where it only works if my external speakers are plugged in and connected.
I am using a late 2011 Macbook pro, running Mavericks 10.9.4, along with an MBox 2 (USB Audio Interface), and two powered speakers (KRK Rokit 5). This setup has had no issues. I have just acquired an external monitor (Benq T2200HD), which I am using with a thunderbolt to VGA adaptor (a cheap non-apple adaptor).
To start - I plugged the monitor in with the thunderbolt adaptor, and it powers up and works fine. However, there is a nasty buzz coming from the speakers. I did some research and it looks like a simple ground loop issue. I did a bit of troubleshooting, and this is where things get weird.
What I found is - If I unplug the MBox, the monitor loses signal from the computer (displaying ‘No Signal Detected!’). Further, if I keep the MBox plugged in, however unplug both the cables from the MBox to the speakers, the monitor loses signal. It doesn’t matter if the speakers are turned off, however they need to be plugged in (or the monitor loses signal). Weirder still, I can unplug the MBox, however the monitor will work if I plug in the speakers through my macs headphone jack.
Simply put, the monitor only works if there is a direct connection between the computer, the speakers, and the power source. What is going on here? Is the monitor grounding through the computer port, to the speakers (I don’t know how this works, is this possible?). Could it somehow be the cheap VGA adaptor I am using?
Some other information:
- Everything is plugged into the same multi-box for power. I have tried plugging things into separate sources, and the result is the same.
- If I unplug the thunderbolt adaptor, then the speaker noise disappears straight away.
- The ground noise doesn’t appear in my headphones, which are plugged into the MBox.
Any information would be great – am I missing something here, or is this genuinely weird?

Hello cgoldberg11
Please go to the below link to test if you are having a speaker hardware failure.
Testing for Hardware Failures (Windows 7)
This will rule out hardware failure, let me know how that goes.
Thanks
If I have solved your issue, please feel free to provide kudos and make sure you mark this thread as solution provided!
Although I work for HP, my posts and replies are my own opinion and not those of HP. .....
Reguards,
Mo

Strange X220 with Fn+F4 Behaviour

Similar Messages

Maybe you are looking for