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Hardware & Devices

Discussions on hardware (choosing, setting up, troubleshooting) and device drivers (for those who like the colour blue)

This category can be followed from the open social web via the handle hardware-devices@forum.codeproject.com

1.5k Topics 6.1k Posts
  • bluetooth pairing ?

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  • how to get grub to load "last selected OS"?

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    Sorry, I have use ubuntu in multi-boot situations a number of times and have never encountered anything like the situation you are showing. I can only suggest you find a specialist Linux support website where you may find someone with a deeper knowledge.
  • how to SIMPLY remove inactive RAID ?

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    What happens when you try the --remove option?
  • how to "find " partition ?

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  • are Bluetooth "devices " pairing or connecting before "scan" ?

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    K
    That's easy enough to test. Turn on a bluetooth device. Do not pair or connect, and run a scan. I think you'll find that the scan reports the device presence. My expectations are: scan - find any nearby device with bluetooth receiver turned on - may or may not report devices that are paired to other servers and not soliciting for connection pair - establish a connection to a scanned device that is soliciting for a connection connected - a pairing has been established and the server can communicate with the device. Keep Calm and Carry On
  • How to recover from stuck Bluetooth scan ?

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    A "stack" is the set of programs and/or system services needed to supply a given end-user (in this case) service. As I understand it, for bluez there's User programs : e.g. hcitool System software : e.g. whatever system processes are needed to monitor/provide bluetooth services System libraries : e.g. libbluetooth this provides interfaces for both system and user programs Kernel module : e.g. bluetooth module, which provides the kernel side implementation details As you can see, this forms a "stack", with each layer needing services from the layer below it to provide the services it needs to the layer above. Keep Calm and Carry On
  • What Is RAID 5 advantage over simple backup?

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    If the only way to loose your files is a hard disk failure, then you may consider RAID5 to be a "backup" solution (the "backup" being stored in the redundancy bits of the non-crashed disks. For all other issues - fire, flooding, machine/disk stolen/lost, inadvertent file deletion or content modification, ransom virus, discovering that a virus has infected a lot of your files, ... - you need a decent backup. For a great number of the risks, you also need offline, offside backup. You need frequent backup, at least daily, which implies that you need incremental backup. And everyone should know The Tao of Backup[^] :-) - Old, but as valid as ever.
  • paring Bluetooth devices using command code

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  • How to identify and remove partition

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    Thank you for helping. It is much appreciated.
  • hard disk

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    Open the Start menu and search for Command Prompt. Launch Command Prompt. Inside Command Prompt, type the following command and press Enter: wmic diskdrive get model,serialnumber. Command Prompt will return the models and serial numbers of your hard disks. If you are not getting the serial number then purchase the new HDD using Hard Disk Direct Discount Code 35% OFF on each hard disk.
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    Have you tried using powerline adapters with separate short ethernet cables instead of a long ethernet cable (you don't actually specify how long the connection is)? I have been using powerline adapters for many years without any problems. However, I lose quite a lot of speed as I run them across ring circuits (3 PCs on a triple port 200Mbps adapter on one ring, Router and NAS each with single port 500Mbps adapters on another ring) where they 'talk' through the distribution box (which is not recommended). Prior to 802.11n, this setup was faster than wireless (not all of my devices have wireless cards). Interestingly, if one of the PCs communicates with the NAS unit, the power adapters ignore the router and form an ad hoc link directly between the source and target nodes. The cheapest price for a pair of 1Gbps single port adapters that I have seen today is £19.99 (you need a pair: 1 for the PC, 1 for the router).
  • Microprocessor vs microchips

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    Microchips are what's left after your partner gets to the chips first. "Before entering on an understanding, I have meditated for a long time, and have foreseen what might happen. It is not genius which reveals to me suddenly, secretly, what I have to say or to do in a circumstance unexpected by other people; it is reflection, it is meditation." - Napoleon I
  • USB for Power?

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    You've got 4.5 watts. Check the power requirements for your devices. A 4.5 W fan isn't much of a fan. 4.5 W of LED light is bordering on the usable. A plain clock can easily run on 4.5 W, but if you are thinking of one with light and radio to wake you up to and animated display and so on, maybe it will break the power limit. Usually you can find the power consumption on some label. And then: What you get without negotiation is five volts. If you want to adapt existing electronics, they may be built for two AA batteries, three volts, or for twelve volts. Some are for nine volts. So you will have to add some voltage regulator. Then you might consider adding a chip for USB power negotiation as well, and you will have the option for both higher voltage and higher effect. I wouldn't have gone for USB as a low-voltage distribution system, though. Specifically: I am not going for it, I go for 12/24 V. I am in the process of stretching cables from the accumulators of my solar panels to sockets "all over the house". I go for far more robust plugs than USB-C; they will be XLR, probably 3-pin with ground, 12V and 24V. Before I start buying the sockets, I will again consider 5-pin, with a pin for 5V. The 12-to-5V converter will be right behind the socket, no 5V cabling, so maybe I rather put that converter outside the wall. I will put together various cables with XLR plugs for the wall side (usually the angled variant so it won't stick too much out), and various plugs / sockets in the other end: The common 12 VDC adapter plugs, the car cigarette lighter socket type etc. You can find most plug/socket types e.g. on Mouser. At low voltage - definitely at 5V - the current for a given effect is high. The USB wires are thin. The losses are high. You cannot run long cables. That is why I added 24V alongside with 12V - actually, I've got 24V only from the accumulators to each floor, to a 24-to-12V converter. I am careful to minimize cable lengths: A "spine" along the middle wall through the house, fed from the middle. From the spine run "ribs" to the sockets, mostly on the center wall, or in a right angle out to a ceiling lamp. - Yet, I am using 4 sqmm cable for the spine, 2.5 sqmm for the ribs. I do not know the wire gauge used by USB-C, but it is a tiny fraction of this. For the cables, I might use thinner conductors; that depends on length and expected power consumption. Each rib will be protected by a fuse corresponding to the expected power drawn on that rib. Note that the
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  • High CPU Usage For Visual Studio!

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    I have applied this process by disconnecting the speaker from computer as there are no other devices connected there, only the speaker is connected. After removing this the CPU usage is showing near about 40%. Since the speaker does not need to be used that way, so I disconnected it. Anyway now I am able to work with my computer. I did not encounter a problem till now.
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    Richard Andrew x64R
    I'm pretty sure it caches the updates on the C drive, and if the C drive doesn't have enough space, it throws an error. I don't believe it starts looking for available space on other drives. The difficult we do right away... ...the impossible takes slightly longer.
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    Well I have technical details of the mount but not the camera which is becoming almost impossible to find which is why I came to you. AndRue
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    Joan M wrote: The real question here is: will windows 95 support that Since Windows 95 is long dead there is only one way to find out. If it is not too difficult to swap the devices you should be able to try it, and revert the original disk if it does not work.