Search Results

Search found 7843 results on 314 pages for 'power over ethernet'.

Page 20/314 | < Previous Page | 16 17 18 19 20 21 22 23 24 25 26 27  | Next Page >

• after power outage, monitor won't turn on

  - by J82

  I had a power outage in my apartment today during a Windows 7 SP1 update. I installed SP1 and it told me to restart so I did and that's when the power outage happened. After the power came back on, I started the computer and it looks like the computer is running normally but my monitor is not getting a signal. I am using a Wacom Cintiq 21UX. I tried unplugging all the cords and plugs in the power strip and turning it back on. I also tried a strange method I read in another thread of removing the power cord, holding the on button for 30 seconds, putting the power cord back in, and turning it on. Still no dice. How can I get my monitor to turn on? please help..

  Read the article

• How do you get the ethernet address using Java?

  - by Frank Krueger

  I would like to retrieve the ethernet address of the network interface that is used to access a particular website. How can this be done in Java? Solution Note that the accepted solution of getHardwareAddress is only available in Java 6. There does not seem to be a solution for Java 5 aside from executing i(f|p)confing.

  Read the article

• How to get the IP address of a remote host from its Ethernet address ?

  - by Fred

  I'm looking for some Linux code to find an IP address from an Ethernet adress. I suppose I have to do some inverse ARP trickery but I don't find any example...

  Read the article

• Is length of ethernet header necessarily 14?What's pcap_pkthdr there for?

  - by httpinterpret

  Code snippet from here: void packet_handler(u_char *param, const struct pcap_pkthdr *header, const u_char *pkt_data) { .... /* retireve the position of the ip header */ ih = (ip_header *) (pkt_data + 14); //length of ethernet header .... But this image doesn't say it's necessarily 14: How should I do it properly? UPDATE What's const struct pcap_pkthdr *header for, when do we need it?

  Read the article

• Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E

  - by Sebastian Bugiu

  I had Ubuntu 11.10 and in the last few weeks I experienced an obscure problem: after I had the computer running for a few days I could no longer connect to google.com or anything related to google. All sites worked with all browsers (Firefox, chrome, opera) except google. It remained in the connecting phase for a few minutes and either timed out or finally connected with this huge delay. Even if I entered other sites such as this one, if it had anything to do with google such adsense or gstatic or whatever with g in it, that site took a long time to load waiting in connecting to gstatic.com . Anything google related took minutes to work, but everything else worked instantly! I tried rebooting or using other machine(with windows on it) and this worked, so it's not network related. But after a few days it started not working again... So I upgraded to the Precise Pangolin hoping this behavior would go away. It didn't! After a few days I get the same behavior as in 11.10. What am I supposed to do? Reboot every other day? I didn't have this problem with neither 10.10 or 11.04. I found the Realtek RTL8168/8111E issue with the r8169 driver but this is not exactly the same card so probably trying r8168 won't help. Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02) Subsystem: Toshiba America Info Systems Device ff1c Flags: bus master, fast devsel, latency 0, IRQ 44 I/O ports at 4000 [size=256] Memory at d0010000 (64-bit, prefetchable) [size=4K] Memory at d0000000 (64-bit, prefetchable) [size=64K] Capabilities: [40] Power Management version 7 Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Endpoint, MSI 01 Capabilities: [ac] MSI-X: Enable- Count=2 Masked- Capabilities: [cc] Vital Product Data Capabilities: [100] Advanced Error Reporting Capabilities: [140] Virtual Channel Capabilities: [160] Device Serial Number 09-00-00-00-ff-ff-00-00 Kernel driver in use: r8169 Kernel modules: r8169

  Read the article

• Davicom DM9601 USB LAN NIC Ubuntu 11.10 issue

  - by Gaurav_Java

  I have a davicom dm9601 USB ethernet card. When I plug in the device, it is detected and drivers are loaded, but I can't connect to internet using it. It works perfectly on XP, other laptop but not working on Ubuntu 11.10 How can I install the driver for this? I have tried many things But nothing is working. If I go to this link driver but not compiling or may I be doing something wrong. I found this one but don't know how to follow these steps . This is my lsusb output: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 004: ID 064e:a103 Suyin Corp. Acer/HP Integrated Webcam [CN0314] Bus 003 Device 002: ID 08ff:1600 AuthenTec, Inc. AES1600 Bus 005 Device 002: ID 0a46:9601 Davicom Semiconductor, Inc. DM9601 Fast Ethernet Adapter Bus 006 Device 002: ID 046d:c045 Logitech, Inc. Optical Mouse Bus 003 Device 003: ID 0a5c:2101 Broadcom Corp. Bluetooth Controller Bus 004 Device 002: ID 04d9:1702 Holtek Semiconductor, Inc. But when I connected my Internet from different system its start working.

  Read the article

• Oracle is Proud to Sponsor POWER-GEN International Conference

  - by Melissa Centurio Lopes

  Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* 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:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Oracle is proud to be an exhibitor at the POWER-GEN International Conference - December 11- 13, 2012 POWER-GEN International is the industry leader in providing comprehensive coverage of the trends, technologies and issues facing the generation sector. Displaying a wide variety of products and services, POWER-GEN International represents a horizontal look at the industry with key emphasis on new solutions and innovations for the future. Register today and be sure to visit Oracle in Booth 2663 on the expo floor! For more information on Oracle Primavera’s Enterprise PPM Solutions for Utilities, click here!

  Read the article

• Using ethernet cables?

  - by Farhad Yusufali

  I have an HDTV which supports internet connectivity through an ethernet port or wirelessly (but this requires an additional wireless USB adapter, which I don't have). I also have a blue ray player than supports internet connectivity through an ethernet port or wirelessly (natively - no other devices are needed). I want to connect my TV to the internet but my router is too far away. My blueray player however is already connected wirelessly. If I connected my TV to my Blueray player via ethernet, would my TV be able to connect to the internet? To clarify: Wireless Signal - Blue Ray Player - Ethernet Cable - TV Would this work?

  Read the article

• Why does waking a PC up with a timer act differently than with the power button?

  - by Dan Rasmussen

  I have a Windows 7 machine set up as a server. It has no monitor and is only accessed through remote desktop. I set up two scheduled tasks, one to put the computer to sleep at night and another to wake it up in the morning. When it's woken up from sleep via a timer, it stays awake for only a couple minutes before going back to sleep. When woken up by pushing the power button, however, it stays awake all the way until the sleep timer. Why does my PC behave differently in these two scenarios? I have set the PC not to prompt for a user's password on wake, since I worried that the login screen might follow different power rules. I tried SmartPower Configuration but had the same problems. I can provide more details if questions are asked in the comments, but I'm not sure what's relevant.

  Read the article

• Accessing and controlling to the modem by ethernet connection

  - by iwd35

  I have a PC and I connectted to my modem (via ethernet cable). I want to prepare interface (VS2010) and I want to connect it and do the following: Modem access the admin page (IP: 192.168.1.1 password: admin password: admin) Wireless band (2.4GHz or 5GHz) changing Network mode (N-only, B/G/N- Mixed) changing channel changing (channel 1, 2,3, etc.) The project will be a desktop application. I will use VB .NET; modem model:cisco linksys wag320. How I can do it?

  Read the article

• Lagging digital tv over ethernet

  - by Steve

  I have a HD Home Run TV over ethernet device, which connects the aerial to my router, and from there the router connects to my PC over about 15m of 100Mbps ethernet cable. The TV output lags every second. It does not do so for a computer much closer to the router. It is odd to me that the network rate is around 7Mbps on a 100Mbps cable. I am not downloading or streaming anything else on the affected computer. Is this lag caused by the speed of the cable, the length of the cable, or interference on the cable? I am considering swapping the ethernet cable with shielded ethernet cable.

  Read the article

• Best practice on Linux servers and CPU/power throttling?

  - by Valentin

  I am running a couple of Debian 6 (2.6.32) and 7 (3.2) Linux servers and all of them have energy saving settings enabled in their BIOS. Furthermore Linux shows that the CPUs are throttled if the servers are idling. I wonder if this could cause any harm - could there be e.g. performance impacts because Linux would not be able to handle throttling correctly? Is there a best practice for Linux servers and power/CPU throttling? Do you guys switch your energy profiles to "performance" or do you leave both the BIOS and the OS with their default settings? The reason I am asking is that I encountered several performance issues on physical Dell servers although all values (CPU/load, memory, I/O, network etc.) seemed to be normal. After changing the BIOS power settings to "performance" in those specific cases, I was able to get rid of the performance issues.

  Read the article

• convert home phone wiring to Ethernet

  - by aaa

  can i convert phone wiring in walls to act as only Ethernet network cause the phone wiring is not in use and not connected to the phone company so there is no voltage in the wires i remove the wall plate and i find 6 wires blue,blue/white,green,green/white,orange,orange/white , and i know that Ethernet use 8 here is what i am thinking get Ethernet cable cut it in half and attach wires from wall to the first computer and the same with the other computer so if this is possible do i just attach wires in the same color and ignore brown wire or do i have to rearrange wires , and how much the speed will be thank you in advance

  Read the article

• convert home phone wiring to Ethernet

  - by aaa

  can i convert phone wiring in walls to act as only Ethernet network cause the phone wiring is not in use and not connected to the phone company so there is no voltage in the wires i remove the wall plate and i find 6 wires blue,blue/white,green,green/white,orange,orange/white , and i know that Ethernet use 8 here is what i am thinking get Ethernet cable cut it in half and attach wires from wall to the first computer and the same with the other computer so if this is possible do i just attach wires in the same color and ignore brown wire or do i have to rearrange wires , and how much the speed will be thank you in advance

  Read the article

• Can't install wireless driver or get ubuntu to recognize ethernet cable

  - by Catherine

  I'm brand new to Ubuntu and I'm tearing my hair out trying to figure out how to connect to the internet. When I try to activate the Broadcom STA wireless driver, it says "Sorry, installation of this driver failed. Please have a look at the log file for details: /var/log/jockey.log." So I try the steps detailed here http://ubuntuforums.org/showthread.php?t=1967515&highlight=jockey Problem is, I can't connect to the internet via ethernet cable either. I tested the cable with another laptop and it works just fine. I don't know what to do. Any help is greatly appreciated.

  Read the article

• How much power supply do I need for my server, and could a shortage be causing my odd crashing?

  - by dolan

  I have 5 servers, all with similar hardware (i7, four 2tb 7200rpm drives, two 4tb 5400rpm drives, 430 watt power supply), and lately the machines have been freezing up. This has gotten worse in the last day or so, and I can't pinpoint any explanation. One recent change was adding the two 4tb hard drives. The crashes happen most often while running a large Hadoop job, so I was originally thinking the load was causing some issues, but last night one server just froze without any heavy load on the box (or so I think), other than HDFS (Hadoop's distributed file system) was probably rebalancing itself since two of the five nodes were offline. If I plugin a monitor and keyboard to one of these frozen machines, I can't get any response or feedback on the screen. Any ideas on possible points of failure and/or different logs I can look at to investigate? Thanks Edit: The systems are running Ubuntu 10.04 Edit 2: More on hardware: intel core i7-930 bloomfield 2.8ghz processor (quad core) 12gb (6 x 2gb) kingston ddr3 1333 ram antec earthwatts green 430 power supply msi x58m lga 1366 motherboard

  Read the article

• How to limit my CPU power programmatically on Windows 7?

  - by Ivan

  Whenever I run a CPU-heavy activity (like compressing a big set of files into an archive for example) my CPU switches to its full throttle (maximum frequency) and shuts down of overheat in less than a minute. Instead, I would like it to keep slowed-down slightly to do the task a bit slower but be able to reach the finish. At the same time I don't want to dim my screen brightness or adjust anything else what standard Windows power-saving system does. So how do I actually set a cap to limit my CPU power? The CPU is Core 2 Duo T7250, the OS is Windows 7 32-bit, there seem to be no BIOS settings or jumpers available to configure the frequencies.

  Read the article

• How can I compare effective power usage of two CPUs / CPU+Mobo+Mem combinations?

  - by einpoklum

  I have this server which does mostly file sharing (with the associated storage). No serious number crunching and it isn't the firewall. My current box has a Celeron D processor (Prescott 336 2.8 GHz); and I'm considering replacing it with a Pentium D (Smithfield 805 2.66 GHz) - for reasons which do not involve performance. How can I know whether one can expect a higher or lower power consumptipn for the change? And how can I estimate the power consumption for each option?

  Read the article

• how did my laptop lose daylight savings time on power loss?

  - by EndangeringSpecies

  it was an old laptop that may or may not have dead CMOS battery (at least it had time reset to 0 when I dusted it off). So, it was plugged into power for awhile without the main battery and the clock was correct. Then there was a power outage. When I subsequently turned it on, surprise-surprise, it had one hour off correct time. So the clock apparently kept running during the outage, but daylight savings time info vanished (from disk? where is it stored?) How come?

  Read the article

• Monitor doesn't turn on the first try, is power supply failure imminent?

  - by xiao

  I been noticing for the last couple days that when I turn on my computer and then my monitor(22inch lcd) that my monitor does not turn on. I push the "on" button and the blue light comes on but the screen is blank. I usually have to then restart my computer and then my monitor will show in the upper left hand corner a dialog bog that says "analog" and it is flickering. Then everything goes to normal. Thinking it is the power supply but at the same time the tower is a year old(it came with a power supply). So when I take that into consideration I am not sure.

  Read the article

• Automatically changing a power profile when a laptop (un)docks?

  - by Dan

  I'm looking for a way to automatically change what happens when I close my laptop's lid depending on if it's in its docking station or not. In an idea world, the on-close behavior would be nothing (when docked) and sleep (when un-docked), but there only seems to be options for behavior when plugged-in and when on battery (when it's plugged in but not docked, I'd like it to sleep when closed). My initial idea would be to create a new power profile with this behavior, but I can't find a way to have it switch when docked (or for the power system to take its docked status into account at all). Any idea?

  Read the article

• What power cord does a WD16001032 hard drive use?

  - by llcf

  I have a Western Digital 160GB My Book USB external hard drive (WD16001032), but I can't find its power cord (or, at least, figure out which one it is in my box of cords). It might be that only one power cord would fit, but I'm a bit cautious since I just tried one of the cords with a router and could smell electronics burning when I used an incorrect one. What voltage/amps are needed for this drive? I can't find specs on Western Digital's site. I'm assuming this is due to it being an older drive.

  Read the article

• USB 3.0 hub; what can it power?

  - by pouzzler

  I own an Asus UX31A laptop, equipped with 2 USB 3.0 ports. I would like to connect several USB devices to one of these ports, using a USB 3.0 hub. 1) Am I correct in assuming the Asus "USB Charger+" commercial blurb corresponds to the USB 3.0 standard "Battery Charging Specification 1.2", and furthermore inferring that the laptop can deliver 1.5A through a USB port? 2) Does a powered external USB 3.0 hard drive draw on the USB power lines? 3) I would like to connect the aforementionned drive, an android phone, and a 200mA rated optical mouse to an unpowered USB 3.0 hub, itself plugged into the laptop. Should my above assumptions be false, would this setup be able to power all three devices? Thanks to the usb guru who'll settle my fears to rest. Best regards, Sébastien

  Read the article

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

  - by Ed Liddiard

  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 input 1.6A & output 18.5V 3.5A. A friend found me a Dell adapter rated at 65W input 1.5A & output 19.5V 3.34A. Both have center + polarities. Seems very stable and not having unusual heat problems. Do you think it is safe to use this adapter without harming my laptop?

  Read the article

• Bridging 10GbE with 12.04 - bridging works but the bridging computer has no internet access

  - by Donal

  I have been trying to get 12.04 bridging working with two 10GbE cards. I have 2 10GbE cards in a linux box being used only for this bridge, 1 with 2 10GbaseT ports and another with a single CX4 port. I have 2 client computers connected with 10GbaseT cards and the CX4 card connects to a procurve switch. I can get the bridging happening mostly the way that I want, The clients receive dhcp information from the dhcp server (not the bridging machine) and can connect to and properly see the rest of the network. Speeds are ok, not amazing but working on that is another matter. My problem is that the bridging machine has no internet access ... meaning I can't update anything or apt-get anything It can ping all other machines on the local network. I've tried the helpful hints from: https://help.ubuntu.com/community/NetworkConnectionBridge "Enabling Internet Use on the Bridging Computer" and get the following RTNETLINK answers: File exists but dhclient br0 does nothing for me :( I think if it is anything it a multiple route problem as both br0 and eth4 have ipaddresses ... even though I have only set it up so that br0 has one ... Bridge setup details: /etc/network/interface auto br0 iface br0 inet static address 192.168.0.246 netmask 255.255.255.0 gateway 192.168.0.1 broadcast 192.168.0.255 dns-nameservers 192.168.0.1 dns-search example.com dns-domain example.com #(eth2 & eth3 are the 10GbaseT) #(eth4 is the CX4 connection) pre-up ip link set eth2 down pre-up ip link set eth3 down pre-up ip link set eth4 down pre-up brctl addbr br0 pre-up brctl addif br0 eth4 eth3 eth2 pre-up ip addr flush dev eth3 pre-up ip addr flush dev eth2 pre-up ip addr flush dev eth4 post-down ip link set eth4 down post-down ip link set eth2 down post-down ip link set eth3 down post-down ip link set br0 down post-down brctl delif br0 eth2 eth3 eth4 post-down brctl delbr br0 ifconfig -a br0 Link encap:Ethernet HWaddr 00:15:17:22:20:34 inet addr:192.168.0.102 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::215:17ff:fe22:2034/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:4957 errors:0 dropped:0 overruns:0 frame:0 TX packets:1077 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:596320 (596.3 KB) TX bytes:139952 (139.9 KB) eth4 Link encap:Ethernet HWaddr 00:60:dd:47:7c:05 inet addr:192.168.0.57 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::260:ddff:fe47:7c05/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1 RX packets:15391 errors:0 dropped:51 overruns:0 frame:0 TX packets:1207 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:5916769 (5.9 MB) TX bytes:154312 (154.3 KB) Interrupt:70 route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth4 0.0.0.0 192.168.0.1 0.0.0.0 UG 100 0 0 br0 169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 br0 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 br0 192.168.0.0 0.0.0.0 255.255.255.0 U 1 0 0 eth4

  Read the article

< Previous Page | 16 17 18 19 20 21 22 23 24 25 26 27  | Next Page >