Troubleshooting is a form of problem solving that uses logical, systematic steps to solve the problem.

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36 views

Tracing syscalls

I am trying to learn some tricks using "trace" (or dtrace or strace or truss), so I using the command: trace -d [random PID] I am getting the following error messages: trace error: trace facility ...
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1answer
57 views

PC 1 Long 2 Short Beeps, No BIOS

I just built a PC and it just makes 1 long and 2 short beeps. I'm pretty sure it's not the graphics card because it is working fine with all fans on and pcie ports work. I tried both ports for ...
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0answers
10 views

Mac self opens files and offers menus when not asked

I have a problem with mac 10.8.5, When working in any document or program, Mac itself: moves to another documents when doing in my current document ( do not use mouse ) or offers an options as in ...
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1answer
131 views

Pinging default gateway and DNS over ADSL connection failed

My ADSL modem lights are on. When I run diagnostics from my router's IP address it cannot ping the default gateway and DNS. I contacted my ISP ,they say that there is no problem on their end. What ...
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0answers
62 views

How can I find drivers or devices that cause DRIVER_POWER_STATE_FAILURE bsod in windows?

For some time now I have been experiencing temporary lockups and crashes on my brand-new windows 8 system. Investigation of error logs shows exclusively DRIVER_POWER_STATE_FAILURE errors; ntoskrnl.exe ...
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1answer
124 views

Belkin router SSID not visible

I have a Belkin N150 router and can't connect to the internet. Only the small blue WPS light is blinking. It's SSID is no longer visble to any devices. I can't even access it's router management page ...
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1answer
27 views

PC resets triggered by vibration

Having trouble with a PC that resets frequently (monitors turn black, then BIOS boot up screen appears a few seconds later). The cause appears to be vibration; in fact I can tap the case in a ...
0
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1answer
49 views

Linksys Ethernet switch holds five computers or not?

I have a Linksys Ethernet switch conected to the Internet. The switch works fine with two computers. My problem is when I try to connect another two computers, then nothing works. The switch has five ...
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2answers
111 views

Is my CPU performing as it should?

Recently my frames in a game I play have dropped significantly. I am trying to troubleshoot this and have got the the stage of the CPU, as you can see I have an Core i7 3770k, and although I know a ...
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1answer
27 views

Persistent issue with PC that won't boot

My PC refuses to boot. The power switch lights up and the fans spins, but it doesn't boot. Usually this happens for long stretches of time and then sometimes it magically boots after a few restarts, ...
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2answers
129 views

SATA1 hard drive not seen by BIOS anymore

I haven't had much success with storage at all because all my hard drive and USB drives have gone faulty and all on them on this very old PC except a few USB. Motherboard: ...
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1answer
314 views

Ubuntu runs very slow

I have been using Ubuntu 13.10 32-bit for a month. It's working fine, but since two days ago it hangs more than ever, and it sometimes runs very slowly. For example, when a window closes it slowly ...
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1answer
942 views

uTorrent 3.3.2 seeding status - peer connected but not uploading

I have installed new stable version of uTorrent 3.3.2 and have some weird issued by uploading to peers. Port is opened and forwarded (green check icon) same settings as in old 2.2.1 but users can't ...
3
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1answer
402 views

Monitor image became offset to the right. How to fix this?

Got this odd problem where the image in the monitor is offset to the right. It’s offset a lot. I have an external monitor, which is connected to a laptop. I don’t use the laptop’s display, only the ...
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0answers
182 views

Problems with Radeon HD 7770 graphics card

I got an Asrock 945GCM-S motherboard, LGA 775 socket, 4GB of RAM and a Core 2 Duo E7400 processor. And I wanted to upgrade my graphics card. The older graphics card was a Radeon HD 4650 without its ...
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2answers
55 views

Acer 5738, Windows 7 random shutdowns

I can run my computer any number of hours continuously without any issue, but if I do a Skype video call (not just audio, never happens with audio call), some flash games, or even certain online ...
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0answers
279 views

New Build, asrock h87,-itx no video output

Im building a system with a asrock h87m-itx, 8gb gskill ddr3 1600, and a intel g3220 lga 1150 i put it together and it powers up but there is no video output. I tried hdmi and dvi. ive also checked ...
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1answer
237 views

Computer freezes on cold boot

I have a problem which started about 3 weeks ago. Each time I boot my computer for the first time of the day, it will freeze around 1 hour after the boot. It happens independently of the OS in use ...
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1answer
94 views

Diagnosing random computer crashes

I have been attempting to diagnose random computer crashes for a few days, and have been unsuccessful so far. I had a desktop that I build a year and a half ago which I ran Linux on. I never had ...
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1answer
31 views

When resizing columns, why does it sometimes quickly “zip” smaller?

When resizing columns smaller (not program-dependent), typically resizing from right->left, the column will sometimes quickly "zip" smaller, collapsing the column in on itself as if a black hole has ...
6
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1answer
522 views

Firefox: Viewing a specific SVG file turns the system unresponsive

Important: Several SuperUser regulars are currently trying to narrow down the scope and cause of this issue. We are currently seeking willing volunteers to fill out the form here after performing ...
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1answer
3k views

Windows 7 and 8.0 bug: Network icon is marked as “no internet access”

When does windows mark network connection icon as having no internet access? I have internet access, but the icon says I don't. If I run troubleshooter, it finds no any problems. But the icon still ...
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1answer
74 views

Creating a sub-network on a different network

I am on a network and am assigned 1 IP address for me. This is 172.16.1.202. However, I wanted to have multiple machines on at one time, so I created a router using a Raspberry Pi. It is running ...
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1answer
52 views

Why is only one Excel spreadsheet crippled, but others are fine?

I have an inherited spreadsheet that I really don't want to rebuild at the moment. It's a simple small workbook that is small (< 200 rows that don't even reach to AA) and does nothing more than ...
0
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1answer
53 views

Intel RST accidentally selected wrong drive as system drive — how to fix?

Question / TL;DR If Intel RST has marked a drive other than my RAID set as the system drive, how can I get it so that the RAID set is now seen as the system drive, and catch it up to my drive now? ...
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1answer
82 views

How can I troubleshoot SSD disconnection problems on Windows 7?

I have a small SSD (Transcend StoreJet TS256GESD200K) which I am using on several computers. The drive is formatted with NTFS and recently I started noticing disconnects. Normally one probably ...
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49 views

mouse, keyboard or monitor randomly not working on 5% of win 7 boots

Sometimes (e.g 5%) I boot the computer and either the mouse (usb), or the keyboard (usb), or the monitor (dvi) will not work although the devices are powered. Nothing different is been done while ...
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4answers
698 views

Why do people suggest you try using another USB port? [duplicate]

Just curious why this is always on the list for trouble shooting USB devices. Is it just because how USB works, some kind of tech myth, or just in case there's an actual hardware fault with the USB ...
0
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1answer
36 views

Screen stops responding in full screen applications

Hi I am encountering a strange problem any ideas would be helpful. I am trying to run certain games in full screen whilst doing so my screen goes blank and get the no data received message. This ...
2
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1answer
420 views

Diagnosing Random Computer Freezes [duplicate]

I bought a desktop computer a few months back. About 3 months ago it started freezing at random intervals, sometimes as much as 2-3 times per day, other times as little as once per week. The specs are ...
0
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1answer
282 views

Sound stopped working on Toshiba Satelite C855

I have a Toshiba Satallite C855 running Windows 7 with a Realtek High Definition Audio card. Sound worked fine yesterday. Today, my two-year old did something to the machine, and I have no sound. I ...
0
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1answer
29 views

Obtaining IP Address Cycles - Wireless Connection Failing Troubleshooting

We are trying to connect wirelessly to our business' network through our router (BT Business Hub). It was working a week or two ago and as far as I am aware nothing has changed. Anything trying to ...
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1answer
84 views

How much “jarring” is enough to damage a hard drive? [closed]

Roughly what amount of physical jarring is enough to damage a hard disk (like crashing the head onto the platter)? Yes, it's subjective, and all drives are rated differently, but I'm not looking for ...
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2answers
174 views

How to find last-added USB device in Windows?

Is there a way to find the last-added USB device in Windows (perhaps something like "dmesg" for Windows)? I'm plugging the USB device in, and it makes the sound of connection, but when I check ...
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1answer
206 views

Window Remote Desktop Connection

I have PCs X1,X2,X3 in a network X (Ethernet Lan) all of them in workgroup XW and running windows XP pro 32 bits version. The same PC X1 is also in network Z (wifi Lan) with another PC Z1 via a ...
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0answers
237 views

Boot loop before POST

I built a new computer two months ago: Motherboard: ASUS H87-Pro Processor: i5-4570 Memory: Vengeance LP - 2x 4 Go - PC12800 - 1600 MHz - CL9 - CML8GX3M2A1600C9 in slots A2 and B2. Case: Advance ...
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0answers
38 views

First build, circuit breaker problems

This is my first build, so please excuse the fact that I don't know the correct terminology. I just built my first computer last weekend. Essentially I got everything installed last Friday, and ...
0
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1answer
309 views

Windows 7 with static IP | Suddenly stop working Internet connection

I have a Windows 7 installation and because I run an Apache web server with Virtual Hosts, I have assign a static IP in my network interface. The given IP is 192.168.1.100. Suddenly, today, my ...
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0answers
104 views

Lenovo G570 restarts randomly

My Lenovo G570 began to randomly restart once or twice a day about two weeks ago. It stopped for a few days and then started doing it again. I don't get a BSoD, it just restarts and gives me the ...
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2answers
515 views

Manually connecting to a wired network with linux

I currently only have wired internet via a cable modem connected to an Airlink 101 ASW105 switch. It works fine for my wife's mac. However, my laptop does not connect; I've tried connecting via eth0 ...
1
vote
1answer
493 views

Is Comcast blocking my SSH on a high port?

I am having trouble getting SSH to work. I am using a non-standard port (9876). I verified my server's IP address both by using an external whatismyip type site, and by using curl ifconfig.me, both ...
0
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1answer
115 views

Superblock set in the future, hwclock attempting to debug it

I keep getting errors messages about my Superblock mount time being in the future, and insisting on doing fsck on every other boot, Im worried it will mess up my SSD. Where is the last time coming ...
2
votes
1answer
193 views

Some service is bringing Windows 7 to a halt - how do I find it?

Something is preventing Windows 7 Home Premium from completing some basic tasks. I can't open the Networking and Sharing center, and the network icon in the system tray is frozen with the blue ...
0
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1answer
180 views

Fixing truncated *zip with Terminal, keep getting stuck

I have a *zip containing a lot of pictures from the past year, and it compressed incorrectly and is missing its end statement. I've been using "zip -FF" in Terminal, but it keeps getting stuck on a ...
1
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1answer
67 views

lock browser to troubleshoot javascript and css

Let's say I created some tooltip which displays a popup when the cursor is placed over a given part of the page, and removes it when I move the mouse. For an example, see http://jsbin.com/aCoboQo/1 ...
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0answers
24 views

Strange share editing behavior

For a while now, I have had issues attempting to change the share properties for any file or folder on my computer. When I open up file properties, this is what I see: I am able to edit these ...
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3answers
60 views

Asus Integrated Cards Crashing

I bought a used ASUS notebook several months ago, and I encountered a bizarre phenomenon: Whenever running resource intensive software it would crash. I tried many things to test this myself, ...
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0answers
18 views

Possible to determine what shell extensions are slowing down Windows?

Other than systematically disabling/enabling shell extensions, piece by piece -- Is there a way to measurably determine if/what shell extensions are bogging down the right-clicking of files/folders ...
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0answers
8 views

pictures will not import [closed]

for some reason after plugging in my USB to laptop to import pictures, nothing happens,I have been doing this for years and never had a problem. I have tried switching computers and the desktop ...
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3answers
111 views

Do I need to replace my NIC or how is there a software based solution?

My connection intermittently fails and it is not because of my home phone or a microwave oven. I have a Realtek RTL8190 802.11n Wireless LAN (Mini-)PCI NIC. My signal strength is excellent. My ...