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• Power Query in Modern Corporate BI–Copenhagen, June 3, 2014–#powerquery

  - by Marco Russo (SQLBI)

  I will be in Copenhagen to deliver the SSAS Tabular Workshop on June 2-4, 2014 (few seats still available, but hurry up!). In the same week I will be a speaker in an evening community event, MsBIP møde nr. 21, delivering the Power Query in Modern Corporate BI session that I also presented at TechEd North America 2014 last week. It’s not just a session about Power Query, there is a broader scope related to Corporate BI vs. Self-Service BI, which could be open to many consideration. I think that the two worlds can (and should) collaborate, instead of fighting against each other, especially when there is an existing investment in Corporate BI. I hope to meet many of you there!

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• Xfce Power Manager on Xubuntu 13.10 doesn't work

  - by kirokko

  The problem is that its actually works, but something works with Xfce Power Manager at the same time. For example, I set that if I pressed Suspend button (on my Lenovo B560 its Fn+F2 hotkey) then system ask me what to do. But when Log out window appears, system goes to suspend. Another example is closing the lid. I set it to lock the screen via Xfce Power Manager, but system still goes to suspend. I thought that it might be laptop-mode-tools, but it's not installed. Before 13.10 I had 13.04 and everything were fine.

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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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• How to find polarity of a power supply that's lacking the customary markings

  - by Nosredna

  If I have a power supply (not a computer power supply, just a battery-replacing wall wart) and it doesn't have the usual polarity marking, how to I know if the tip is positive or negative? Update: I couldn't find my multimeter. I did find a model number on the power supply and typed it into Google. Some guy selling a bunch of power supplies on eBay had checked it and found that it was tip positive, which is what I needed!

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• Power Distribution amongst connected nodes

  - by Perky

  In my game the map is represented by connected nodes, each node has a number of connected nodes. The nodes represent a system in which players can build structures and move units about. If you're familiar with Sins of a Solar Empire the game map is very similar. I want each node to be able to produce power and share it with all connected nodes. For example if A, B, C & D are all connected and produce 100 power units, then each system should have 400 power units available. If node B builds a structure that consumes 100 power units then A, B, C & D should then have 300 power units available. I've been working on this system all day and haven't been able to get it working quite the way I want. My current implementation is to first recurse through each nodes's connected node adding up the power, I keep a list of closed nodes so it doesn't loop, it's quite similar to A* actually. Pseudo code: All nodes start with the properties node.power = 0 node.basePower = 100 // could be different for each node. node.initialPower = node.basePower - function propagatePower( node, initialPower, closedNodes ) node.power += initialPower add( closedNodes, node ) connectedNodes = connected_nodes_except_from( closedNodes ) foreach node in connectedNodes do propagatePower( node, initialPower, closedNodes ) end end After this I iterate through all power consumers. foreach consumer in consumers do node = consumer.parentNode if node.power >= consumer.powerConsumption then consumer.powerConsumed += consumer.powerConsumption node.producedPower -= consumer.powerConsumption end end Then I adjust the initial power for the next propagation cycle. foreach node in nodes do node.initialPower = node.basePower - node.producedPower node.displayPower = node.power // for rendering the power. node.power = 0 end This seemed to work at first but then I came into a problem. Say two nodes A & B produce 100Pu each, it's shared so both A & B have 200Pu. I then make two structures that consume 80Pu each on A (160Pu). Then the nodes power is adjusted to basePower - producedPower (100-160 = -60). Nodes are propagated, both nodes now have 40Pu (A: -60 + B: 100 = 40). Which is correct because they started with 200Pu - 160Pu = 40Pu. However now node.power >= consumer.powerConsumption is false. Whats worse is it's false for any structure that uses more that 40Pu, so the whole system goes down. I could deduct from consumer.powerConsumption but what do I do if power is reduced elsewhere? I don't have the correct data to perform the necessary checks. It's late so I'm probably not thinking straight but I thought to ask on here to see if anyone has any other implementations, better or worse I'd be interested to know.

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• Low Power Speed Monitoring

  - by user555584

  I am aware of speed detection via gps, however as a background app, I am concerned about high power drain. I am looking to detect speed, say over 5mph, but it does not have to be accurate, say like a speedometer. Is there a low power way to detect if the phone is in motion, say by triangulation, or tracking tower strength and new/recently lost towers? I have an app design that is dependent on running in the background upon launch and knowing if the phone is in a car or not. Thanks!

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• Olympics data available for all on Windows Azure SQL Database and Power View

  - by jamiet

  Are you looking around for some decent test data for your BI demos? Well, if so, Microsoft have provided some data about all medals won at the Olympics Games (1900 to 2008) at OlympicsData workbook - Excel, SSIS, Azure sample; it provides analysis over athletes, countries, medal type, sport, discipline and various other dimensions. The data has been provided in an Excel workbook along with instructions on how to load the data into a Windows Azure SQL Database using SQL Server Integration Services (SSIS). Frankly though, the rigmarole of standing up your own Windows Azure SQL Database ok, SQL Azure database, is both costly (SQL Azure isn’t free) and time consuming (the provided instructions aren’t exactly an idiot’s guide and getting SSIS to work properly with Excel isn’t a barrel of laughs either). To ease the pain for all you BI folks out there that simply want to party on the data I have loaded it all into the SQL Azure database that I use for hosting AdventureWorks on Azure. You can read more about AdventureWorks on Azure below however I’ll summarise here by saying it is a SQL Azure database provided for the use of the SQL Server community and which is supported by voluntary donations. To view the data the credentials you need are: Server mhknbn2kdz.database.windows.net  Database AdventureWorks2012 User sqlfamily Password sqlf@m1ly Type those into SSMS and away you go, the data is provided in four tables [olympics].[Sport], [olympics].[Discipline], [olympics].[Event] & [olympics].[Medalist]: I figured this would be a good candidate for a Power View report so I fired up Excel 2013 and built such a report to slice’n’dice through the data – here are some screenshots that should give you a flavour of what is available: A view of all the available data Where do all the gymastics medals go? Which countries do top ten all-time medal winners come from? You get the idea. There is masses of information here and if you have Excel 2013 handy Power View provides a quick and easy way of surfing through it. To save you the bother of setting up the Power View report yourself you can have the one that I took these screenshots from, it is available on my SkyDrive at OlympicsAnalysis.xlsx so just hit the link and download to play to your heart’s content. Party on, people! As I said above the data is hosted on a SQL Azure database that I use for hosting “AdventureWorks on Azure” which I first announced in March 2013 at AdventureWorks2012 now available for all on SQL Azure. I’ll repeat the pertinent parts of that blog post here: I am pleased to announce that as of today … [AdventureWorks2012] now resides on SQL Azure and is available for anyone, absolutely anyone, to connect to and use for their own means. This database is free for you to use but SQL Azure is of course not free so before I give you the credentials please lend me your ears eyes for a short while longer. AdventureWorks on Azure is being provided for the SQL Server community to use and so I am hoping that that same community will rally around to support this effort by making a voluntary donation to support the upkeep which, going on current pricing, is going to be $119.88 per year. If you would like to contribute to keep AdventureWorks on Azure up and running for that full year please donate via PayPal to [email protected] Any amount, no matter how small, will help. If those 50+ people that retweeted me beforehand all contributed $2 then that would just about be enough to keep this up for a year. If the community contributes more than we need then there are a number of additional things that could be done: Host additional databases (Northwind anyone??) Host in more datacentres (this first one is in Western Europe) Make a charitable donation That last one, a charitable donation, is something I would really like to do. The SQL Community have proved before that they can make a significant contribution to charitable orgnisations through purchasing the SQL Server MVP Deep Dives book and I harbour hopes that AdventureWorks on Azure can continue in that vein. So please, if you think AdventureWorks on Azure is something that is worth supporting please make a contribution. I’d like to emphasize that last point. If my hosting this Olympics data is useful to you please support this initiative by donating. Thanks in advance. @Jamiet

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• Choosing A Power Supply [closed]

  - by Geeks On Hugs

  Possible Duplicate: Power Supply Capacity Formula How can I check if my system needs more PSU power? I'm not sure if it's OK or not to ask a hardware question here. If not please let me know a good place but I've always got good info here so I thought I'd give it a shot. I'm custom building a new workstation for coding (Linux/Eclipse). How do I determine how much power the power supply needs? I'm building a mini ITX system on a budget and so I need to get as small as possible that is sufficient. I'll have a mini itx mobo with on board wifi and bluetooth, 8 GB RAM, an Intel i3 3.1 Ghz processor, 64 GB SSD and a slim optical drive. In the future I might add a descrete GPU, 16 GB RAM, 128 GB SSD. What is the minimum power I need and how do I calculate that?

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• PC power supply & normal range for voltages reported in BIOS hardware monitor?

  - by Chris W. Rea

  I'm trying to diagnose whether my computer has an ample power supply. Sometimes when I play a video-intensive game, both monitors lose the video signal, even though the computer remains on and sound playing. A theory I have is: the video card isn't getting sufficient power. I can't imagine it's overheating because the machine is well-ventilated and the video card isn't hot to touch when this happens. Anyway, in my PC's BIOS there's a Hardware Monitor page, and among other voltages reported (such as CPU, DRAM, South Bridge, etc.) I can see the following values: 3.3V 3.152V 5V 4.944V 12V 11.872V Are those the voltages used by peripherals? What voltage should I be referencing if I want to know what my video card (PCI Express) is consuming? What is the normal range of values reported for those? My values above appear to be under by approximately 4.5%, 1.1%, and 1.1% respectively. Is that cause for concern? How else should I be determining if my power supply is "right-sized" for my PC and video card, or am I perhaps barking up the wrong tree?

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• Why does working processors harder use more electrical power?

  - by GazTheDestroyer

  Back in the mists of time when I started coding, at least as far as I'm aware, processors all used a fixed amount of power. There was no such thing as a processor being "idle". These days there are all sorts of technologies for reducing power usage when the processor is not very busy, mostly by dynamically reducing the clock rate. My question is why does running at a lower clock rate use less power? My mental picture of a processor is of a reference voltage (say 5V) representing a binary 1, and 0V representing 0. Therefore I tend to think of of a constant 5V being applied across the entire chip, with the various logic gates disconnecting this voltage when "off", meaning a constant amount of power is being used. The rate at which these gates are turned on and off seems to have no relation to the power used. I have no doubt this is a hopelessly naive picture, but I am no electrical engineer. Can someone explain what's really going on with frequency scaling, and how it saves power. Are there any other ways that a processor uses more or less power depending on state? eg Does it use more power if more gates are open? How are mobile / low power processors different from their desktop cousins? Are they just simpler (less transistors?), or is there some other fundamental design difference?

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• Turning Supply Data Into Savings- (Almost) Everything You Need to Know in 12 Minutes

  - by David Hope-Ross

  Strategic sourcing and supplier management analytics are easy. The hard part is getting reliable data that provide an accurate record of suppliers, spend, invoices, expenses, and so on. In this new AppsCast, e-Three’s Amy Joshi provides an extraordinarily cogent explanation of key challenges, technologies, and tactics for improving spend visibility. Take twelve minutes to listen and learn. The techniques that Amy outlines can add millions to your organization’s bottom line.

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• Laptop power supplies, does current matter?

  - by CodeSlave

  I have two laptops (same manufacture), with the same type of power connector. However, the power supplies/transformers are slightly different. The output on the first laptop's power supply is 15.6 V at 8.0 A. The output on the second laptop's power supply is 15.6 V at 5A. Clearly the voltages are the same, but the currents are different. I assume the second laptop's power supply can not be used on the first, because it can't supply enough power to the laptop. However, can the first laptop's power supply be safely used on the second laptop?

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• Will final version of 12.04 use the power management changes found in kernel 3.3

  - by Luis Alvarado

  I have seen in some version of Ubuntu that instead of making a huge change to update to the latest kernel, they take some of the good stuff out of it, for the sake of stability and put it on a previous version. In this case, kernel 3.3 has seen some very good power management enhancements that are not all found in the kernel 3.2. My question then is: Will this updates in 3.3 be somehow pulled into the 3.2 kernel used for Ubuntu 12.04?

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• power management of USB-enclosed hard drives

  - by intuited

  With a typical USB hard drive enclosure, is the full range of drive power management functionality available? In what may be an unrelated matter: is it possible to suspend a PC without unmounting an attached USB-powered drive, and then remounting it on resume? This is the behaviour I'm currently seeing (running Ubuntu linux 10.10). Are there certain models or brands that provide more complete control over this aspect of drive operation? My Friendly Neighbourhood Computer Store carries (part of) the Vantec Nexstar product line.

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• Power manager keeps shutting down the display

  - by david25

  I'm probably missing something here. I'm using the default Ubuntu power manger, I set it up like this: On AC: no screen dimming when idle, never put computer to sleep, never put display to sleep. On battery: I kept the default settings. Still, Ubuntu does whatever it likes, and after 15 min it puts the display to sleep. Does anyone have the same problem and found a way to solve it? I'm using an Eee PC with Ubuntu 10.10 Desktop.

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• Xubuntu 14.04, Power Manager, Screensaver

  - by Bathynomus

  When my computer is inactive, I keep getting a black screen and the screen goes into locked mode asking for a password, even though in Power Manager I have "Never" set for actions and monitor and Extended "Lock Screen" is unchecked. I don't see a screensaver, but perhaps that is the issue? Is anyone else experiencing this? Is this a bug? Is there a temporary workaround? I did not see this issue in 12.xx, 13.xx.

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• How to prevent screen locking when lid is closed?

  - by Joe Casadonte

  I have Ubuntu 11.10 with Gnome 3 (no Unity), gnome-screen-saver has been removed and replaced with xscreensaver. The screensaver stuff all works fine -- no complaints there. When I close my laptop lid, even for a second, the screen locks (and the dialog box asking for my password is xscreensaver's). I'd like for this not to happen... Things I've tried/looked at already: xscreensaver settings - the "Lock Screen After" checkbox is not checked (though I've also tried it checked and set to 720 minutes) gconf-editor - apps -> gnome-screensaver -> lock_enabled is not checked System Settings - Power - "When the lid is closed" is set to "Do nothing" for both battery and A/C System Settings - Screen - Lock is "off" gconf-editor - apps -> gnome-power-manager -> buttons -> lid_ac && lid_battery are both set to "nothing" dconf-editor - apps -> org -> gnome -> desktop -> screensaver -> lock_enabled is not checked Output from: gsettings list-recursively org.gnome.settings-daemon.plugins.power: org.gnome.settings-daemon.plugins.power active true org.gnome.settings-daemon.plugins.power button-hibernate 'hibernate' org.gnome.settings-daemon.plugins.power button-power 'suspend' org.gnome.settings-daemon.plugins.power button-sleep 'suspend' org.gnome.settings-daemon.plugins.power button-suspend 'suspend' org.gnome.settings-daemon.plugins.power critical-battery-action 'hibernate' org.gnome.settings-daemon.plugins.power idle-brightness 30 org.gnome.settings-daemon.plugins.power idle-dim-ac false org.gnome.settings-daemon.plugins.power idle-dim-battery true org.gnome.settings-daemon.plugins.power idle-dim-time 10 org.gnome.settings-daemon.plugins.power lid-close-ac-action 'nothing' org.gnome.settings-daemon.plugins.power lid-close-battery-action 'nothing' org.gnome.settings-daemon.plugins.power notify-perhaps-recall true org.gnome.settings-daemon.plugins.power percentage-action 2 org.gnome.settings-daemon.plugins.power percentage-critical 3 org.gnome.settings-daemon.plugins.power percentage-low 10 org.gnome.settings-daemon.plugins.power priority 1 org.gnome.settings-daemon.plugins.power sleep-display-ac 600 org.gnome.settings-daemon.plugins.power sleep-display-battery 600 org.gnome.settings-daemon.plugins.power sleep-inactive-ac false org.gnome.settings-daemon.plugins.power sleep-inactive-ac-timeout 0 org.gnome.settings-daemon.plugins.power sleep-inactive-ac-type 'suspend' org.gnome.settings-daemon.plugins.power sleep-inactive-battery true org.gnome.settings-daemon.plugins.power sleep-inactive-battery-timeout 0 org.gnome.settings-daemon.plugins.power sleep-inactive-battery-type 'suspend' org.gnome.settings-daemon.plugins.power time-action 120 org.gnome.settings-daemon.plugins.power time-critical 300 org.gnome.settings-daemon.plugins.power time-low 1200 org.gnome.settings-daemon.plugins.power use-time-for-policy true gnome-settings-daemon is running: <~> $ ps -ef | grep gnome-settings-daemon 1000 1719 1645 0 19:37 ? 00:00:01 /usr/lib/gnome-settings-daemon/gnome-settings-daemon 1000 1726 1 0 19:37 ? 00:00:00 /usr/lib/gnome-settings-daemon/gsd-printer 1000 1774 1645 0 19:37 ? 00:00:00 /usr/lib/gnome-settings-daemon/gnome-fallback-mount-helper Anything else I can check? Thanks!

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• Power Supply And Power Cable at Equinix Palo Alto?

  - by d123

  I will be doing a server installation at the Palo Alto Equinix Data Center soon and I'm coming in from overseas so I wondering if any of you can help me out regarding power supply can power cable issues. My server power supply is INPUT 100-240V AC ~50/60Hz MAX AC CURRENT 10A-5A Do I need a DC power supply? and the power cable plug head I'm currently using is BS 1363 plug head. What kind of head do I need?

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• Shaping the Future of Power

  - by caroline.yu

  In an energy marketplace that continues to evolve, gain insight into how utility executives increasingly confront the challenges of preparing their workers, regulators and customers for a period of volatility and promise. This free on-demand Web cast, sponsored and underwritten by Oracle Utilities, will provide you with an executive-level view of what it means and takes to be a utility leader. By viewing this Web cast, you will hear: NRG's CEO David Crane weighing in on next-gen nuclear, generation portfolio diversity, and what it's like to live through (and thrive in) a hostile takeover attempt EPRI's Clark Gellings, the father of demand side management, outlining the coming trends marrying technology with customer energy consumption patterns CEO Ralph Izzo discussing PSEG's low-carbon emissions strategy, commitment to solar power development, and pursuit of reliability through infrastructure investment. To view this Web cast, please follow this link.

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• Power management issues on an Asus N55

  - by Andrea Borga

  I noticed that with respect to Win7 on my Asus N55 Ubuntu 12.04 tend to overheat the system. After startup the fan controller takes control of the fan, I could here it slowing down, after a few second following a login the fan increases its speed again. Though there are no processor hungry process: top shows only Xorg consuming 4%. Even with the system monitor the CPUs load look ok. Is it a power management related problem? This can cause battery life troubles in general, and electronics is never happy to be overheated. Is there a better tool to root the cause of the issue?

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• Cutting desktop power usage

  - by steevc

  I'm on a general energy saving mission. I've finally swapped my old CRT monitor for a LCD, so the next step it to optimise the PC power usage. It's using an AMD 64 X2 4600+ CPU which I know can trottle down, but seems to be running at a constant 2.4GHz. A while back I heard about Granola. I've installed it, but when I try to run it I get granola[10568]: Error opening scaling governor file '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor' in read mode granola[10568]: Is cpufreq enabled in this kernel and do you have a CPU which supports DVFS? granola[10568]: Can't manage DVFS for any CPUs I'm happy to use other applications if Granola is not optimal or viable.

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• Welcome to the new Oracle Supply Chain Management Blog!

  - by [email protected]

  Welcome to the new Oracle Supply Chain Management Blog!  We will use this blog to share ideas, trends and interesting topics in supply chain management.  Here you'll find blogs about thought leadership, upcoming events (both Oracle and third-party), supply chain best practices, customer and partner innovations and successes and more.   We will cover all areas of the supply chain including Planning, Manufacturing, Supply Management, Logistics and Distribution and Service.  We hope that you will find the blogs and topics interesting and stimulating and we welcome your feedback.  Happy reading and blogging!

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• power manger keeps on shuting down the display even when i state in the power manger to never do that.

  - by david25

  i'm probably missing something here, i'm using the default ubuntu power manger, i setup it like that: on AC: no screen dimming when ideal. never put computer to sleep. never put display to sleep. on battery i kept the default setting. and still ubuntu does what ever it likes :\ , after 15 min it puts the display to sleep. any one having the same problem and found a way to bypass it? im using eee pc with ubuntu 10.10 desktop.

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• Power supply switch like stays off motherboard light turns on

  - by Sion

  I bought a computer at the thrift store yesterday. The computer powered on without any error beeps. Getting it back to the house determined that the CD and hard drive needed to be changed. Put in a populated hard drive to check, the computer turned on and seemed to function. Put in a new CD drive, and just put in a new Hard drive. I plugged it in to check and I noticed that the light for the power supply switch did not come on. But I did notice that the light on the motherboard is lit. and I could not turn the computer on. To help troubleshoot it I unplugged the CD and Hard drive. then re-plugged the power supply and switched it on and off. Nothing changed. Parts: Motherboard: Digital Home PSW DH deluxe Power Supply: FSP-Group FX700-GLN Did I accidentally unplug something while installing the hard drive? Is the Power supply fried somehow?

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• Workaround for Dell "Power Supply Not Recognised" issue

  - by Haedrian

  So, I have a Dell Inspirion and the power supply port appears to be damaged. Basically when I plug it in I get a nice popup telling me that it couldn't detect that its a Dell power supply so it won't charge the battery and underclocks the system. It still works for other purposes (that is, giving power) I thought it was the actual power supply cable so I bought a new one, that worked for a while, provided I inserted it at JUST THE RIGHT angle. But now that's not working anymore, so I assume its the part which connects to the computer. The battery charging I can live without, the underclocking I can't. I'd like a way around this issue. Things I've tried: Updating the BIOS Replacing the power supply cable Inserting it at different angles Turning it off and on again Swearing at it Twisting it while inserting it So, is there a workaround somehow? I'd like to avoid taking out my soldering kit and risking permanently damaging expensive equipment if that's allright. I'm hoping for a software solution. Added: The exact model is a Del Inspirion N5010

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