I’ve already started to work on the project (even though I don’t get the money for a couple weeks). Re-reading the depressing NRC report from last summer. It will be my point of departure for the remix.
Category Archives: Administrative
CPU Fan
The noise is driving me nuts. It rattles and ticks, and sounds like it’s about to fail. It’s just a few months old. I pulled the cooler assembly off, and removed the fan, and replaced it with an older one. I kept the heat sink, because the older one was about half the size and cooling capacity. But the old fan makes similar noises. I’ll go buy a new one at Fry’s, but I wonder if something else is going on.
[Update a while later]
OK, it’s not the fan. I stopped it momentarily, and there was no change. The question is: What is it? I can’t figure out exactly where it’s coming from. I only have one physical hard drive hooked up, and it’s not in the case.
[Update a while later]
OK, I changed power supplies. It’s better, though the noise is still there, and it’s not coming from the power supply. Still can’t quite isolate it. It’s now more of a steady ticking. It was doing it at 2 Hz or so, and now sounds like maybe 10, and not as loud.
[Update a while later]
This makes me wish I had a stethoscope.
[Sunday-afternoon update]
OK, got a stethoscope. The sound is not coming from anywhere or anything on the motherboard. I only hear it when I touch the case itself, and it seems to be being transferred through the metal. Still no clear where it’s coming from.
[Bumped]
[Update a while later]
I picked the case up off the desk, and the sound changed slightly. I set it back down, and it’s changed a little again. But whatever was rattling is still rattling. I feel like I may have to pull the board and reinstall. Part of the problem is that the front edge of the board doesn’t have much support, due to configuration.
[Monday-morning update]
OK, when I push the case away from the motherboard, it gets a little quieter.
[Early afternoon update]
OK, starting to think it is supernatural. I tried recording it, so people could hear what I’m talking about, but nothing came out. It was like that old tape in The Sixth Sense. But I upped the mike gain, and aimed it better (it’s my headset, which is pretty directional), and now you can hear it, if you crank up speakers. It’s about a 3Hz resonance.
[Wednesday-afternoon update]
I FOUND IT!
There is a huge case fan in the front that I had previously been unaware existed. It turned out to be impossible to R&R, due to being trapped behind a riveted drive cage. So I just unplugged it. The bad news is that I now know how loud my PSU and CPU fans are. But it’s still a huge improvement. White noise instead of rattling.
[Bumped]
OK, Different Computer Question
I’ve got her machine set up as Windows native, installed on SSD. Her old Windows drive, with her old files, is hooked up to it. She can see it fine from Windows. But while she was using Linux, she’d been writing to an LVM drive, which was originally a backup, but now has some changes on it from the old drive.
I’m running Fedora as a virtual machine, and it seems to be running fine (so far). I’ve attached the old Windows drive to the physical machine, and it shows up in Nautilus and other file managers. But when I try to access it, I get a message that it’s an NTFS drive with problems, and I can only mount it read-only. It suggests I repair.
So, is this caused by the fact that its already mounted and in use by Windows? Seems a little strange, since the virtual machine probably wouldn’t know that. Windows doesn’t have a problem with it. Bigger question: Can/should I try to repair it as an unmounted drive from the virtual machine using e2fsck? That is, does e2fsck repair NTFS drives? And what is the risk if I don’t attempt to back it up first?
OS Follies
Sound works fine in Fedora. Sounds works fine in Virtual Windows machine running in Fedora. Boot native into Windows 8.1, and no sound. Windows troubleshooter says there’s no problem. I’ve updated the Realtek drivers. Everything looks great on Windows, except no sound out of the speakers. And of course, Fedora running virtual on Windows doesn’t have sound, either, because it only sees what Windows sees.
She wasn’t happy running Windows as virtual in Fedora, but that seems to be the only way to get sound.
[Friday-afternoon update]
Well, I’ve sort of solved the problem, but it’s still not right. I unplugged from the rear, and re-plugged into the front jack, and RealTek sees it now. For some reason, it’s not seeing line out in the rear, even though it works fine in Linux. So we have sound, but it’s sort of a PITA to have to use the front jack, and keep the door open.
[Bumped]
[Update a while later]
Well, this is apparently not an uncommon problem.
Went to the MSI web site to download the latest RealTek driver, and it doesn’t recognize the hardware. So current MS driver may be the best I can do until they update.
Video Issues
OK, Linux people. Blender will let me make to edit and export a video as an AVI JPEG, but it refuses to export the synched audio to it. However, it will export the audio by itself as a .flac.
Does anyone know any separate tools that would allow me to synch that audio file with the video?
[Update a while later]
OK, VLC sort of works. Problem is that for some reason it really messes up the title when I add audio. If I were to post the MP4 and .flac files, could someone else try to synch them?
[Update late afternoon]
OK, I tried this:ffmpeg -i RoadToMars.wav -i 0001-9000.avi RoadToMarsAudio.avi
Continue reading Video Issues
Space Tech Expo
I’m heading down to Long Beach. I’ll have my laptop, but blogging may be light.
Non-Military Affidavit
This law seems absurd.
We’re living in a Carl Hiaasen novel, with a crazy tenant who is destroying the property, and we want to evict her ASAP. Why is it incumbent on the landlord to prove a negative?
It seems like the first condition could be satisfied simply by pointing out that she’s been renting a home in Boca Raton, Florida, and there are no commutable military bases nearby.
Improving Space Operations
It’s Day 2 of the workshop. I’m giving a talk this morning on the need for resilient LEO infrastructure. I may post the briefing later. It’s substantially the same one I gave to NASA at HQ in December.
Improving Space Operations
There’s a workshop at JPL today and tomorrow (I’m doing a presentation there tomorrow morning), so blogging will probably be light or non-existent.
[Update a few minutes before I leave]
The Humans2Mars conference starts today in DC. There is so much stuff going on in space that it’s hard to cover it all in person, even if I had the travel resources. Follow @jeff_foust and Pat Host (@Pat_DefDaily). It’s also live streaming.
[Update before I’m out the door to Pasadena]
Humans2Mars has issued its first annual report. That’s the first I’d heard that Mike Raftery had left Boeing.
New Ubuntu Question
I’m running it in VirtualBox. It looks like crap, and I want to adjust the appearance (e.g. resolution). But when I load that window, it’s bigger than the screen, with no way to scroll or get to other parts of it. Any suggestions?