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  • Battery issues on Dell Inspiron XPS14z Ultrabook

    - by querolus
    I'm new in the Ubuntu world. I just bought a Dell Inspiron XPS 14z Ultrabook and installed Ubuntu to dual boot with Windows thanks to the Ubuntu Secured Remix package. Everything works fine except the battery. I have, at most, 1h 30' battery life. With windows it can last more than 3h. Moreover, and I guess it's related to the battery issues, the fan is constantly running at high speed while it does not when working with windows. Do you know where can be the problem?

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  • Battery icon constantly empty when discharging Vaio VGN-FZ210CE

    - by Alex
    I have a Sony Vaio VGN-210CE laptop, and its battery does not report the drain rate properly. In 11.10 and earlier, the battery icon would update with the percentage, not the estimated time. In 12.04 and 12.10, it estimates by time, which is always some very low value because the estimated drain rate is 700W. I currently have 89% in my battery but the icon is red and empty. If there is an application I should install, or a setting I should change, please let me know. Thanks!

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  • Battery life decreased after upgrade to 11.04

    - by bruno077
    After upgrading from Ubuntu 10.10, my battery life has decreased dramatically. There was a bug in Ubuntu 10.10 where the Load Balancing Tick and Kworker would interrupt and wake-up the cpu too much, and this wasn't normal. I applied a gnome-power-manager fix back then, following this question, which leads to this bug report, and battery life increased to 3.5 hours. I'm getting around two hours of battery-life in Natty, and calling Intel's powertop reveals that this bug is back. Is there a fix for Natty yet? I have a Core 2 Duo ULV, Thinkpad Edge 13

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  • Fans are noisy and battery life is low

    - by Igor Ryzhov
    I worked on Windows 8 previosly and I never had problems: my laptop was quiet and battery life was about 5-6 hours without charge. Then I installed Ubuntu 12.10 and my problems started: now fans are always on and have very strong noise and battery life shortened to 1-1.5 hour! How can I solve this problem? UPD: Full specifications: http://www.onyougo.co.uk/samsung-700z5a-s01ru-notebooks-laptops-features_pi1492384e2

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  • how to set power plan / power profile for battery

    - by user86274
    How can i setup different power profile settings? For example i want to set low screen brightness when i am on battery power and full brightness when i am not. From "power settings" i can setup brightness but it is persistent no matter what power i use. Is there any software that i can use to prolong my battery power when i use ubuntu? I can use my laptop at least 1 more hour when i am using windows....

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  • Battery doesn't charge on high cpu load

    - by bhappy
    When my cpu load rises the battery stop working I don't know why i.e If I start playing a game such as counter strike source the battery won't change unless i minimize the window which brings the load down Can someone please help me with this issue Note: sometimes when flash lags for a sec it shows discharging and charging again also due to high cpu load My laptop is a sony vaio F series 127FD model Thanks

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  • Software Life-cycle of Hacking

    - by David Kaczynski
    At my local university, there is a small student computing club of about 20 students. The club has several small teams with specific areas of focus, such as mobile development, robotics, game development, and hacking / security. I am introducing some basic agile development concepts to a couple of the teams, such as user stories, estimating complexity of tasks, and continuous integration for version control and automated builds/testing. I am familiar with some basic development life-cycles, such as waterfall, spiral, RUP, agile, etc., but I am wondering if there is such a thing as a software development life-cycle for hacking / breaching security. Surely, hackers are writing computer code, but what is the life-cycle of that code? I don't think that they would be too concerned with maintenance, as once the breach has been found and patched, the code that exploited that breach is useless. I imagine the life-cycle would be something like: Find gap in security Exploit gap in security Procure payload Utilize payload I propose the following questions: What kind of formal definitions (if any) are there for the development life-cycle of software when the purpose of the product is to breach security?

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  • What are the limitation for the battery for notebook HP HDX18?

    - by theateist
    I have HP HDX X18T-1200 CTO Premium notebook. My battery died and I would like to buy a new one. The specs written on battery itself are: NSTNN-OB75 RATING: 14.4 - 73Wh 3.14.4v, 5000mAh. The specs written on the dock where the battery goes are: NSTNN - Q35C My questions are: How to calculate the number of cells. I've read some post how to calculate but I don't know the nominal voltage. I saw batteries with 8,12 cells and 106Wh and 7000mAh, can I use it on my laptop or it can make damage. In other words, what the max mAh and Wh I can use for battery in my notebook?

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  • Battery not recognized on my laptop (and it recognizes my laptop as a desktop)

    - by AZorin
    I have installed Ubuntu (both 10.10 and 11.04 pre-release) on my laptop but my battery is not recognized and it is detected as a desktop system rather than a laptop. I have tried to get the output of cat /proc/acpi/battery/BAT1/state but the directory doesn't exist. I have tried another guide to paste the battery info into this directory but it doesn't allow me to do that and says that the directory doesn't exist, even though I'm trying to make it. I tried it in root Nautilus and even on an install of Lubuntu (with a root file manager) but it still failed to budge. I really don't know what to do as I have tried all the guides on the internet that I could find. Is there any way to change the configuration file(s) that detect the internal hardware of the computer. The /proc directory is a temporary RAM directory afaik. Is there a directory where that data is stored permanently and where the RAM reads if you know what I mean? Thanks in advance. AZorin This issue has been reported as bug #764513.

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  • Detection of battery status totally messed up

    - by Faabiioo
    I already posted this question in the Ubuntu forum and stackOverflow. I forward it here with the hope to find some different opinions about the problem. I have an Acer TravelMate 5730, which is 3 y.o., running Ubuntu 10.04 LTS. One year ago I changed the battery because the old one died. Since then, everything worked like a charm. A week ago I was using my laptop running on battery; it was charged up to 60%. Suddenly it shut down and for about 24h it was like the battery was totally broken: it didn't charge anymore and the 'upower --dump' said state: critical. I was kind of resigned to buy a new battery, when suddenly the orange light became green: battery was charged and actually working; strangely the battery indicator was stuck to 100%, even after 2 hours running. I tried again with 'upower --dump' or 'acpi -b' commands and it kept saying battery is discharging, though maintaining the percentage to 100%. Thus, battery working fine up to 3 hours, without any warning when it was almost empty, likely to result in a brute shut down. Today something different. the 'upower --dump' command says: ... present: yes rechargeable: yes state: fully-charged energy: 0 Wh energy-empty: 0 Wh energy-full: 65.12 Wh energy-full-design: 65.12 Wh energy-rate: 0 W voltage: 14.481 V percentage: 0% capacity: 100% technology: lithium-ion I tried to boot WinXP and the problem is pretty much the same, with the battery fully-charged, percentage equal to 0% and no way to fix it. While writing, the situation has changed again: present: yes rechargeable: yes state: charging energy: 0 Wh energy-empty: 0 Wh energy-full: 65.12 Wh energy-full-design: 65.12 Wh energy-rate: 0 W voltage: 14.474 V percentage: 0% capacity: 100% technology: lithium-ion ...charging, but it does not charge up. (Recall, the battery lasted 3 hours until yesterday!). So, the big question is: is it an hardware issue, like a dedicated internal circuit is broken? or maybe it is just the battery that must be changed. Or, rather, some BIOS problem that could be fixed in some way. I'd appreciate every help that can shed some light on this annoying problem thanks

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  • Lenovo ThinkPad Edge E430 Battery Problem

    - by LEo
    On Ubuntu's Web Page, in the Certified hardware section, it is listed Lenovo. http://www.ubuntu.com/certification/ So I decided to buy a ThinkPad from Lenovo. Just one month after I bought the notebook, the battery got a problem and it does not charge anymore. Now Lenovo won't give me any support because I am using Ubuntu. Lenovo says they will give support only for Windows users because their tools runs on Windows. They refused to change my battery before running the Windows based test. What should I do?

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  • Battery discharges while computer is off

    - by Nuno Finote
    I bought a hp 15-r003np 2 weeks ago and installed ubuntu 14.04 LTS with dual boot (to windows 8). When i shutdown ubuntu, in the next day battery has 85% of charge, despite the computer shutdown. If i power off in windows battery charge is 100% in the next day. Does anyone have noticed the same problem? I think the network adapter is not on wol mode, seen via windows network config properties. I need help to solve this problem... (it's not right to work around restarting to windows to do the shutdown properly...)

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  • Battery Power when running Ubuntu 14.04 LTS in dual boot

    - by Amro A.
    This is only a general question in order for me to get a better idea of my dual boot (windows 8 & Ubuntu) systems. I noticed that every time I run Ubuntu (which is becoming more often) the battery power gets consumed really fast. I am not performing any special tasks at the moment, just getting to know the system, for example, sound settings, watching videos, surfing the net and so on. When I do the same thing in Windows 8 the battery lives a considerable amount of time longer. Is this something to do with Ubuntu or is it because of the dual boot that I have going on? In other words, if I start running Ubuntu all by itself on my laptop, will it be more power consuming than Windows 8?

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  • My Laptop Battery Does Not Charge

    - by Oo Nwoye
    I am using a HP Pavilion and Ubuntu 11.10. I have been using Ubuntu for about a year. Recently (in Nov or there about), I noticed my battery never charges fully no matter how long it has been plugged in. I thought it was a problem with the power pack. However, after changing it, the problem is still persisting. I upgraded to 11.10 form 11.04 at about the same time so I do not know if this is a software or hardware issue. How do I solve this? This problem has been written about in various forms Laptop battery not charging after update?. Please help me or find someone that can.

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  • Won't Hibernate when Battery Critical

    - by 12SJW34
    Ubuntu 12.04 64bit refuses to hibernate when battery is critically low. Instead it does a complete shutdown which is unnecessary and can cause loss of data. I have enabled Hibernate (pm-hibernate) on following the common instructions I tested pm-hibernate it is works fine when run manually. I have set my power options to hibernate "When Power is Critically Low". This has also been verified by using dconf Editor. Under org gnome settings-daemon plugins power critical-battery-action it is set to "hibernate". Under the same schema, time-action is set to "120". I would like to see what is happening just prior to this shutdown. I would like to know what logs to search to see if pm-hibernate is actually failing, or if it is being ignored entirely. Barring figuring this out on my own, is there a suggested work around?

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  • Dell Inspiron 1501 battery no longer "recognized"

    - by mwalling
    My parents were on vacation last weekend and franticly called me saying that they couldn't get their Inspiron 1501 to boot anymore without the BIOS whining about the battery. Before this happened, they said the "battery went dead with negligible pre-warning". On bootup, the computer says: WARNING: The battery cannot be identified. This system will be unable to charge this battery. With options to enter the BIOS or continue booting. I got to look at the machine last night. The battery still holds a charge, and will recharge. Windows detects it as a DellPY9617 battery manufactured by "DynaPack". I didn't get the BIOS revision, but the machine's ship date was 7/21/2007. The recommendations I could find on the internet varied from "discharge the battery completely" to "your computer is too old" to "update the BIOS", and wanted a more specific answer before doing something drastic.

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  • Best usage for a laptop being used as a desktop without removable batteries

    - by Senseful
    After reading the information on http://batteryuniversity.com, I realize that one of the best ways to permanently damage a lithium ion battery is to use the battery at a high temperature while it's fully charged. This is exactly what happens when you use the computer as if it were a desktop computer, since leaving it plugged in will keep the battery at 100% and using the computer will heat up the battery. This is why it's recommend to remove the battery from your laptop if you are using it is this scenario. My question is what would you do if the laptop doesn't have removable batteries (e.g. a MacBook Pro)? Should I use some kind of charge cycle such as: charge to 80%, unplug the power chord, use the laptop until it reaches 20%, then repeat the cycle by charging to 80% again? If so, which values should I use instead of 80% and 20%? (I think charging to 80% is better than 100% because of the damage that a hot battery at 100% can do, but I just made the figure 80% up, and I'm sure there's a better number to strive for which is backed by science.) I've read many of the articles on batteryuniversity.com, but couldn't find anything pertaining to this. Update: What about doing something like charge (or discharge) it to 50%, then plug it in and turn on settings which use the battery as much as possible (e.g. brightness all the way up, wi-fi on, etc.), in order to try to maintain the battery at 50% (i.e. the rate it is charging is the same as it is discharging). This will probably heat up the battery, but would make it so you don't need to constantly plug and unplug the laptop. The one bad thing is that you are taking up more charge cycles which would decrease the battery life, thus I'm not sure this is a good idea.

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  • Does programming knowledge have a half-life?

    - by Gary Rowe
    In answering this question, I asserted that programming knowledge has a half-life of about 18 months. In physics, we have radioactive decay which is the process by which a radioactive element transforms into something less energetic. The half-life is the measure of how long it takes for this process to result in only half of the material to remain. A parallel concept might be that over time our programming knowledge ceases to be the current idiom and eventually becomes irrelevant. Noting that a half-life is asymptotic (so some knowledge will always be relevant), what are your thoughts on this? Is 18 months a good estimate? Is it even the case? Does it apply to design patterns, but over a longer period? What are the inherent advantages/disadvantages of this half-life? Update Just found this question which covers the material fairly well: "Half of everything you know will be obsolete in 18-24 months" = ( True, or False? )

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  • Oracle is #1 in Life Sciences!

    - by Michael Snow
    Guest post today by: John Klinke, Senior Principal Product Manager, Oracle WebCenter Content 12.00 Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Calibri","sans-serif"; mso-fareast-font-family:Calibri; mso-bidi-font-family:"Times New Roman";} Based on the announcement last week at EMC World about Documentum for Life Sciences, it looks like EMC is starting to have regrets about pulling out of the life sciences space over the last few years. Certainly their content management customers and partners in life sciences have noticed their retreat. Many of them are now talking to us about WebCenter Content since they’ve seen the writing on the wall regarding Documentum’s decline, including falling revenue, shrinking investment, departure of key executives, and EMC’s auditing of existing customers. While EMC has been neglecting the life sciences industry over the last few years, Oracle has been increasing its investment and commitment by providing best-of-breed solutions to enable pharmaceutical, medical device, biotech and CRO companies to improve productivity and drive innovation. As a result, according to IDC Health Insights, Oracle is #1 in life sciences. From research and development through clinical development and manufacturing to sales and marketing, Oracle provides the solutions that life sciences companies depend on to accelerate R&D, expedite clinical trials, and speed time to market. Specifically for Oracle WebCenter, our life sciences business is booming thanks to our comprehensive offerings led by Oracle WebCenter Content, our 21 CFR Part 11 compliant enterprise content management platform. Unlike Documentum, WebCenter Content is all about keeping the cost of ownership low - through simplicity, flexibility, and out-of-the-box integrations. WebCenter Content is a single, comprehensive ECM platform that can handle all your content management needs, from controlled documents to digital asset management, records management and document imaging and capture. And it is much more flexible, letting you do configuration changes instead of customizations to meet your business needs. It also saves you money by being pre-integrated with the rest of the Oracle Fusion Middleware technology stack and with leading enterprise applications like Siebel (including Siebel CTMS), Primavera, E-Business Suite, JD Edwards and PeopleSoft. So if you think EMC’s announcement last week was too little and too late, I’m happy to report that Oracle is here to help. Back in October, we announced our Move Off Documentum offer, which provides a 100% trade-in credit for your Documentum licenses when you purchase Oracle WebCenter, and the good news is, this offer is still available for a limited time. So stop maintaining Documentum and start innovating with Oracle WebCenter. For more details see www.oracle.com/moveoff/documentum.

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  • Dell Vostro 3500 battery life remaining missing from Windows 8?

    - by Misha
    On Windows 7 a Vostro 3500 laptop shows the battery life remaining, while on Windows 8 this information appears to be missing. The percentage is still available, but the life remaining is missing. How is battery life remaining calculated and does this require some level of driver support? Is it a standardized interface? Does anybody know which driver is responsible for handling this feature? I want to force the old Windows 7 driver, but I don't know which driver does battery remaining.

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  • What is the impact of leaving a laptop in "sleep" mode (while on battery power)?

    - by Elazar Leibovich
    How much battery would leaving my laptop at "sleep" mode consume? is the consumption low enough so that it would be safe to leave the laptop sleeping at nights regularily and using it tommorow? What's the recommended period of time for which I should not turn it off, but let it sleep. (for example, if I'll use the computer in a minute - turning it off instead of making it to sleep will definitely not save battery due to the overhead of turning your computer on and off).

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  • How to see the discharge rate of the battery

    - by Luis Alvarado - The Wolverine
    Maybe this question was made earlier but I can't find it. I want to see a terminal command or gui program that can show me the discharge rate of the battery. What hardware parts or programs are using more watts. EDIT: Found additional information regarding my question when using for example PowerTop: https://bbs.archlinux.org/viewtopic.php?id=128319 https://bugs.archlinux.org/task/26416 Both related to the having disable ACPI_PROCFS_POWER in the kernel.

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  • The 2010 Life Insurance Conference - Washington, DC

    - by [email protected]
    How ironic to be in Washington, DC on April 15 - TAX DAY! Fortunately, I avoided IRS offices and attended the much more enjoyable 2010 Life Insurance Conference, presented by LIMRA, LOMA SOA and ACLI. This year's conference offered a variety of tracks focused on the Life Industry including Distribution/Marketing Marketing, Administration, Actuarial/Product Development, Regulatory, Reinsurance and Strategic Management. President and CEO of the ACLI, Frank Keating, opened the event by moderating a session titled "Executive Viewpoint on new Opportunities." Guest speakers included Ted Mathas, President and CEO of NY Life, and John Walters, President and CEO of Hartford Life. Both speakers were insightful as they shared the challenges and opportunities each company faces and the key role life insurance companies play in our society and the global economy. There were several key themes that were reiterated in multiple sessions throughout the conference - the economy is on the rebound, optimism is growing, consumer spending is up and an uptick in employment is likely to follow. The threat of a double dip recession has seemed to passed. Good news for our industry, and welcomed by all in attendance. Of special interest to me, given my background, was some research shared by both The Nolan Group and Novarica in separate sessions. Both firms indicate that policy administration upgrades/replacement projects remain a top priority in 2010. Carriers continue to invest in modern technology. Modern ultra-configurable systems enable carriers to switch from a waterfall to an agile project methodology, which often entails a "culture change" within an organization. Other themes heard throughout the two-day event: Virtually all sessions focused on People, Process and Technology! Product innovation, agility and speed to market are as important as ever. Social Networks and Twitter are becoming more popular ways of communicating with both field and dispersed staff. Several sessions focused on the application, new business and underwriting process. Companies continue looking for ways to increase market agility, accelerate speed to market, address cost issues and improve service levels across the process. They recognize the need to ease the way to do business with both producers and consumers. Author and economic futurist Jeff Thredgold presented an entertaining, informative and humorous general session on Wednesday afternoon that focused on the US and global economies, financial markets and retirement outlook. Thredgold did not disappoint anyone with his message! The Thursday morning general session was keynoted by Therese Vaughan (CEO - NAIC) and Thomas Crawford (President of C2 Group). Both speakers gave a poignant view of the recent financial crisis and discussed "Putting the Pieces Back Together." Therese spoke of the recent financial turmoil and likely changes to regulations to the financial services sector. Tom's topics focused on economic recovery and the political environment in Washington, and how that impacts our industry. Next year's event will be April 11-13, 2011 in Las Vegas. Roger A.Soppe, CLU, LUTCF, is the Senior Director of Insurance Strategy, Oracle Insurance.

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  • Re-Calibrate Toshiba battery meter with Windows 7

    - by Mark Henderson
    I have a Toshiba U300 laptop. Back in the olden days (circa-2000) you could re-calibrate the battery meter from the BIOS when your battery was no longer reading accurately. My battery was shot, so I bought a brand new one, however Windows 7 still seems to count down the battery life in at the same speed as the old one did. This time, when it alleged 0%, I turned the laptop back on and got another 90 minutes of life out of it, at 0%. Is there a tool or utility for Toshiba laptops that can fix it back to being accurate? I've read the other threads on SU about cycling the battery but that just doesn't seem to do it in this case. Update: After the last cycle, the battery meter now reads 100% but the indicator on the front of the laptop is still orange (indicating not fully charged)

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