0
votes
0answers
8 views

Debugging power on issue

First off I don't know if this is the correct fora, for this kind of question. My personal Acer Aspire 5745G has an issue, namely that it usually has issues powering on. The issue is that when the ...
0
votes
0answers
28 views

Kernel-power event ID 41 task category 63

I have been having problems recently with my Asus N53Sv laptop, it will randomly shut off even at high battery levels (I even bought a new battery thinking it was the problem) It even dies when I log ...
0
votes
0answers
19 views

ubuntu laptop powers off without warning very soon after on battery

Problem: I have a laptop. It works very well on AC power, but on battery power, it powers off in a few minutes, if not seconds, without warning. I saw lots of similar problems not only from SU, but ...
0
votes
0answers
26 views

Why do my network interface and powered-off backlight consume too much power in powertop?

I have an ASUS n550jv laptop. Currently, the wifi is off, the ethernet is active, and the display is completely off (using an external monitor). Yet, in powertop I see the following: The battery ...
1
vote
2answers
40 views

Melting/smoking Universal AC adapter

So I own a Samsung RV520 for 2 years now and 3 months ago my AC adapter stopped working and had to replaced. I went to the closest computer service and they gave me an universal AC adapter. Now, the ...
0
votes
1answer
33 views

Laptop CPU frequency never higher than 40% of maximum

I have a Samsung 900X4C (9 series) laptop with an i7 3517U 1.9 GHz CPU. I have noticed (using CPU-Z) that the actual frequency of the processor never goes above about 40% of the maximum. Now, I ...
0
votes
1answer
14 views

Are Samsung Series 9 ultrabooks (purchased in the US) compatible with 240V/50Hz power input?

I'm traveling and I'm curious if I can use an adapter. I have a replacement power chord and it states that it can take in 100V-240V, 50-60Hz, but I want to make sure that the ultrabook itself accepts ...
2
votes
2answers
48 views

CPU power states and temperature spikes

i just noticed something really unusual on my brand new (slightly used) ASUS N550JV. During my first checks in general performance and etc, i noticed that the temperatures were unusually high for a ...
0
votes
0answers
11 views

Notebook screen

My laptop (Dell Studio 1535) behaves strange after a 4 years of service: when it is powered on, load up with main screen off. It transmit the picture from laptop to external display when connected ...
2
votes
0answers
79 views

Thinkpad laptop flooded with liquid while powered off, won't turn on anymore [not trivial]

A classic IBM Thinkpad T30 (MT2367) laptop has been flooded with a salty water for a period of ~2 hours while powered off, having AC cord unplugged & both batteries (main battery and a tiny backup ...
0
votes
1answer
33 views

Anker Battery shuts off for HP Dv6 2064ca

I bought high capacity (12 cells) from Anker. Battery provides 3 hrs backup time when browsing or sitting idle. When laptop gets hot the cooling fan start to speedup. Especially while watching movies ...
0
votes
0answers
60 views

Laptop dies and does not complete boot process if not on AC, yet battery is fine

My laptop, after a hard 6 years of use, is finally showing signs of electrical wear and tear through a myriad of strange issues, this being one of the least severe of them. I've experienced recently ...
0
votes
1answer
114 views

Laptop crashes when plugged in on AC and battery fully charged (Toshiba Satellite A300-1IW)

My laptop is a Toshiba Satellite A300-1IW (model no PSAGCE-02000VFR). From several months it was crashed suddently when I used it on windows 7 or Xubuntu. Today I notice that the laptop is apparently ...
2
votes
1answer
84 views

Discharging capacitor of laptop

I would like to know what is the procedure for discharging capacitors of a laptop, as my laptop is not able to power up. The AC power light starts to blink as soon as it's plugged to the laptop.
0
votes
1answer
23 views

Power button doesn't work in WIndows 7

So I have a dell notebook which doesn't shut down when I press the power button. I can select shutdown from the Start Menu though. I think it's a software problem because I can turn on the computer ...
1
vote
0answers
71 views

RAM capacity vs power consumption in S3 Suspend-to-RAM mode

My netbook with 1GB DDR2 RAM module takes 16% of battery for 24 hours of S3 standby mode (STR - Suspend-to-RAM). That amounts to the power consumption of 0.32 Watts in standby. That also means that ...
0
votes
0answers
55 views

Battery port/internal battery supply/motherboard problems in an Acer laptop?

I'm not exactly sure what one is wrong. I personally think that it's the charging port, but two different computer repair places have given me the following answers in the title. It's not my cord, ...
1
vote
0answers
143 views

Where did the Undock laptop option go in Windows 8.1?

I recently upgraded from Windows 7 to 8.1 and have some trouble finding features. In Windows 7 under the Shutdown menu, there was an option to undock my laptop (as well as Sleep, Hibernate etc.). Now ...
0
votes
0answers
282 views

/proc/acpi/event not detecting events

My acpid script was not running, so I have attempted to debug it. Running acpi in the foreground with debugging verbosity, I can see that it starts, it reads my rule (1 client rule loaded), and ...
0
votes
0answers
65 views

Closing the lid of my notebook doesn't have any effect

When I close the lid on my Samsung 900x3c-A01 nothing happens, both on Windows and Linux... I've made double-sure all the OS' settings are correct, I even tried to set them up so they would shut down ...
0
votes
0answers
254 views

Laptop won't turn on after it was shut off. Is it dead?

I'm currently I'm using my laptop without battery because my battery was dead. I didn't buy a new battery because I don't have a cash for now. Since then sometimes I accidentally unplug or sometimes ...
1
vote
1answer
51 views

Why was my laptop unable to turn on?

I suspended Ubuntu on my laptop, and then carried it in my backpack to another place. Then I found that the laptop was off instead of being suspended. I couldn't make it power on either, even with ...
1
vote
0answers
34 views

Resources and Advice Troubleshooting a Motherboard [closed]

I have a motherboard (I think it is a PM57 PCH Peak-M system board) on an HP ENVY 15-1066nr that I believe has a short. A few days back the laptop stopped charging (with or without the battery). I ...
-1
votes
1answer
185 views

Fried ASUS laptop with universal charger?

Several days ago, the charger for my ASUS K50IJ laptop (19V, 3.42A) died. So, I bought an Omega universal charger with 11 different plug-ins, but I managed to first use the wrong plug-in (I later saw ...
1
vote
0answers
28 views

How to turn on laptop with external power button [duplicate]

I want to turn a laptop into a desktop computer by connecting it to a monitor and mouse & keyboard, however, it is very annoying to have to open and close the lid every time i want to turn it ...
0
votes
0answers
77 views

newly replaced laptop battery seemingly discharges

I am also referring here to Laptop battery holds charge, but won't charge any more. I may have the same problem but I am not sure, maybe DaBaer could answer me? The battery is a replacement ...
0
votes
0answers
281 views

Asus k50ij won't start, power problems

I am trying to fix an Asus L50ij laptop. Symptoms: lost all battery, wouldn’t turn on on power cable. My first guess was the power jack, because the transformer was good. I opened it up but the ...
0
votes
2answers
167 views

Laptop has black screen and fans on when on battery power

When trying to turn on my laptop using just the battery, the lights and fans run, but the screen and all other operations do not work. When the power cord is plugged in, the laptop works fine. It ...
1
vote
1answer
770 views

Power button doesn't turn on the laptop on first attempt

I have Dell 1764 for about 2 and half years and just recently power button start creating problem when I try to turn it on (it happened like over a night when i turned it off very fine and next day ...
0
votes
1answer
127 views

Laptop does not start anymore because of power issues

I had power issues with my laptop (HP Pavilion dv7 1040ef) for awhile (two dead accumutators, some shutdowns for no reason), but now my computer won't load anymore. I can still start it on ...
1
vote
1answer
843 views

AC Adapter burnt due to voltage fluctuation

The voltage in our area went high. The laptop stopped working,the little bulb in the refrigerator stopped working as well as an AC. When i touched the laptop i felt a current from the metal lining ...
0
votes
1answer
48 views

Server Power Management

I am making a single ssh server, and unfortunately, my area suffers from frequent weather-related power outages. This is going to be a bit of a problem if I want to have a server running unless: a) I ...
0
votes
2answers
2k views

Dell laptop dies when unplugged but the battery appears fully charged

To expand on what I mean, I checked the voltages of each cell in the battery pack and they each read about 4.0v ea (6 green Li-ion cells in a 11.1v 53WH battery) and the total voltage reads 12.4v. At ...
1
vote
0answers
182 views

How do I change power settings on my laptop to hear audio while running on battery?

I have a Lenovo ThinkPad with Windows 7. I can hear sound when my laptop is powered up on AC power. While on battery power I can not hear streaming media, such as YouTube. I was informed that I ...
0
votes
1answer
92 views

HP HDX 16 1200CTO laptop power cuts in and out (charging cuts in and out)

I have an HP HDX 16 1200CTO laptop that has been having a problem for quite sometime. The charger cuts in and out when I'm using the computer; however, it does not when the computer is asleep, off, ...
6
votes
2answers
625 views

Laptop power cuts out ~5 minutes in-game

I've had this laptop (Samsung NP700z7c-S01UK - for reference) for a couple of months now, but it has only just developed this problem. The problem does not persist under regular non-gaming use. ...
2
votes
0answers
143 views

Acer strange battery dissassembly issue

last week I bought an Acer M5-481T ultraportable laptop. Everything was working fine with the laptop and battery until I decided to disassemble it to upgrade the hard drive, which was a few days after ...
2
votes
0answers
198 views

On a dual-GPU laptop, is using the discrete GPU ever more power efficient? [closed]

Given a laptop with a dual integrated/discrete GPU configuration, is it ever more power efficient to use the discrete GPU instead of the integrated? Obviously when writing an email or working on a ...
2
votes
2answers
1k views

Dell inspiron n5010 has failed to recognize AC adapter

Recently my dell inspiron n5010 has failed to recognize my 90W adapter (despite powering it just fine). Full error message: "The AC power adapter wattage and type cannot be determined. the ...
1
vote
1answer
459 views

HP pavillion dv6-1355dx battery light flashing 15 mins when shut down, then won't power up until battery and power removed and plugged back in

I have been reading about problems with the HP Pavillion dv6 series that match my problem a bit, but not exactly. I have a dv6-1355dx. It has just started refusing to power up. Here is the sequence of ...
2
votes
1answer
66 views

The laptop adapter works only after heating it up

I have Dell Latitude C640. Its adapter works only when heated. The LED light turns ON only when it gets extremely heated. I use to heat it on the electric heater. Can anyone tell me the ...
2
votes
2answers
715 views

Is notebook battery life decreasing when fully charged and on AC power? [duplicate]

Possible Duplicate: Should laptops remain plugged in when their battery is 100% charged? When my notebook battery is fully charged and on AC power - is the battery life decreasing (because ...
3
votes
1answer
2k views

Is it safe to use a laptop AC adapter with 220V power if the AC cable is not rated for 220V?

The AC adapter supplied with my laptop is designed to accept voltage in the range of 100-240VAC at 50-60Hz, but the AC cable that plugs into the adapter unit itself is only rated to 125VAC 7.5A 2.5A. ...
2
votes
2answers
1k views

Using a 19V (3.42A) power adapter instead of a 20V (2.0A) for my Lenovo laptop. Is this safe?? (Laptop battery is non functional)

Im ready to accept "long term" degradation to my laptop if i can remain lazy and not go having to find a perfect replacement adapter. Third world electronics scares me (Im in the third). As long as i ...
0
votes
3answers
1k views

Is it safe to leave a laptop always plugged in to power and use it for longer times? [duplicate]

Possible Duplicate: Is it better to use a laptop on battery or on AC power? I have HP dv6 i7 and I work on it for almost 15 hours constantly. Due to power problems in my area because of ...
1
vote
0answers
408 views

Possible to bypass laptop inverter power source - HP dv5000 inverter 7 input pins?

I've got an HP dv5000 laptop with a backlight that won't light up, (but is known to be good). I've also got an inverter board which is good, but isn't getting power from the mobo. So, my question ...
5
votes
2answers
2k views

Laptop turns on then off after 9secs

I've a laptop here that when turned on powers off after about 9 secs (before video is initialized). I was thinking it was overheating BUT this is what's really odd: if I hold down a key on the ...
1
vote
1answer
711 views

Using Power Adapter With Slightly Different Rating - Close Enough? [duplicate]

Possible Duplicate: Laptop power supplies, does current matter? I'm in Colombia, South America and the power adapter on my HP Pavilion DV4-1125nr laptop died. The adapter is rated at 65W ...
0
votes
1answer
1k views

Does intensively running a gaming-laptop increase electrical costs significantly? [closed]

Our electric bill has been high lately, and I was wondering if it is related to my new gaming laptop I bought. I have an MSI GT780DX. It has a huge power brick AC charging adapter, and I leave it ...
2
votes
1answer
701 views

Asus Zenbook UX31 sometimes loses power when plugging in AC power

I wonder what could cause this problem. about 1/10 times when plugging in the AC adapter into my Zenbook, the laptop completely loses power. I always plug in the cable into the outlet first, as I've ...