3,231 reputation
11023
bio website kohne.org
location North Wales, PA
age 45
visits member for 5 years, 8 months
seen 2 days ago

Embedded Software Developer


Jan
15
comment Handling MS office documents on Linux without root access
Oy. They don't even have the standard build tools on there? That means they probably don't have the compilers or anything else. See edits.
Jan
14
comment Google Drive inside TrueCrypt folder
Trying to put your GDrive folder onto a truecrypt volume only encrypts your GDrive data ON YOUR MACHINE. If you manage to do that, you'll still have it be only protected by Google's good graces on their servers. The point of putting an encrypted volume on the drive is that YOU are the only one with the decrypted data.
Dec
28
comment How to protect laptop if my outlet isn't grounded?
@DanielRHicks - UPS often try to detect ground faults because if you have certain types of ground fault, AND the UPS starts providing power, it could create a situation where the user might die.
Dec
18
comment Disconnect from samba share
Also note that cases where you've done something like open a file on that share can leave an application with a directory open, which will also prevent the share from completely going away.
Oct
18
comment Sandra reports my CPU as “Engineering Sample”, how can I be sure this is correct?
@Ramhound - do you mean that the pad is just a pre-formed blob of paste, or is it one of the polymer pads (I know 3M makes some materials that can work in this situation). The advantage to the pads is that you don't need to worry about them when re-applying the cooler, they should squish right back down and keep working, if I'm not mistaken.
Oct
1
comment Is little-endian still faster on Intel processors or it does not matter if I parse big-endian on intel?
@chrisapotek - If you are doing stuff in-memory, then you'll use the processor's native representation, because you want to work with the data. If you are implementing standard protocols, you again don't get to choose - the standard defines things. If you are designing your own communications protocols, then you can do what you want (and mirroring the architecture of most of the involved systems is probably a good idea).
Oct
1
comment Is little-endian still faster on Intel processors or it does not matter if I parse big-endian on intel?
Before someone asks: The TI TMS34020 Graphics System Processor could in fact be run in either little or big endian mode. The only problem was that the compilers I had at the time generated bad code in big-endian mode, so we ended up using it in little endian anyway.
Sep
10
comment PS/2 vs USB keyboards: performance and energy consumption
@MisterSmith - USB to PS/2 is NOT a simple wiring adapter in the general case. There are some devices (including a lot of gaming keyboards) that support both interfaces on the same connector (via simple wiring adapter), but in the general case this is NOT true. As to #2, the amount of power/cycles used to poll the USB keyboard vs respond to PS/2 interrupts is so small as to be irrelevant.
Jul
9
comment Disappearing Hard Disk
SMART tools are recommended here: superuser.com/questions/14803/…
Jun
29
comment New build won't boot: some fans turning, no beep or video
As a side note I recently had this symptom start up on a previously working computer. In my case, it was caused by failures of capacitors on the motherboard. I kinda thought that the supply chains had worked the bad caps out many moons ago, but apparently not.
Jun
25
comment How do I fix repeated error 0x8007f0f4 during install of KB2686509
@slhck - Since the question is about that exact update that the way in which it fails (a failure which is VERY specific to the update in question), I'd say it should be tagged with the update.
Jun
5
comment Shut Out of XP - No Admin Password or CDR
@ashes999 - the domain admins should be able to change the privilege levels of any user for any system. They should be able to give you local admin privs on the system, for instance.
May
29
comment Wireless router disconnects when one computer on the network hibernates
@tghw - oh well, it was worth a shot. I also avoid such things, but some folks find them handy.
May
21
comment Remap pause/break key
The question is tagged windows vista
May
13
comment How do I fix repeated error 0x8007f0f4 during install of KB2686509
For those unfamiliar: a Scancode Map in this location allows one to remap keyboard keys without loading further utilities. I use it to remap my caps lock key
Apr
9
comment What is the easiest method of checking SMART status for your hard drive?
@RichardJFoster: Thanks. I've updated the link in the answer.
Mar
28
comment Is there an encrypted write-only file system for Linux?
with respect to encryption keys, if he only keeps the public key on the system, then the concept of 'writable but not readable' is at least in theory achievable. The problem is that in the event of a full compromise, the attacker could change the operations! So shipping the data off system is definitely the right approach.
Mar
17
comment Threats about validation
@Revd Ken Sargeantson - what you may not know is that the key that was used to install Windows on your laptop is probably NOT the key printed on the sticker on the bottom (that's normal for OEMs). So it's likely that if you can re-activate with the sticker, you won't have a problem.
Mar
13
comment Recover overwritten encrypted partition
No one's ever demonstrated the ability to read over-written sectors on a hard disk, and you sure as heck can't do it with the drive's heads and firmware, which are explicitly designed to read back what was written, not leftover stray fields that won't exist most of the time anyway. If you actually wanted to pull that trick you'd need an electron microscope at a minimum, and probably a heck of a lab. You'll note that none of the major data recovery firms claim to be able to read data that's over-written.
Mar
2
comment Dell XPS randomly freezes – Mouse, keyboard and USB ports lose power until reboot
You might also try adding a powered, external hub to the system. If there's a device that just wants too much power, then the external hub can probably supply more than the MOBO can, and if something drags down the port, you should be able to just unplug and replug the hub to get things back online.