Archives for: July 2011, 24

07/24/11

  07:40:35 pm, by The Dreamer   , 57 words  
Categories: Hardware, Computer, BOINC

Switch to Widescreen display, and Orac loses a brain.

Well, thought it was going to be another quick project....ended up taking the whole afternoon and then some.

I had gotten some speaker options using Amazon Prime, so that I could swap out the old 17" LCD monitor with built-in speakers for the Vison 21.6" MW22E-BAD monitor that had been bumped from Zen recently.

I decided I wanted something <$25 and USB powered, and I bought two choices...figuring that the other would go on Orac, since I've been wanting sound on there too for a while. I went a Coby Portable MP3 Speaker System CSMP48, Black and an Altec Lansing iML237USB ORBIT Ultra Portable USB-Powered Speaker.

I decided that I got with connecting the Coby to Gumby and putting it below the monitor...turned out it was the only one for the situation. The Coby has a 3.5mm jack to connect to the output and a mini USB jack with cable to power it. While the Altec only has the USB cord...it isn't just powered by USB, but it does its own sound. While that would work on either computer, it wasn't really what I had in mind for Gumby....or Orac. So, the Coby went in place and then I went to work on swapping the Vison 21.6" monitor into place.

Things looked weird on all computers, since I had to tell each computer about the change in display.

Gumby, Windows XP was a problem...in that it wouldn't let me set 1680x1050 at first. Eventually, I uninstalled the driver, rebooted and now it shows tons of modes that I'm not interested in. I set it to 1680x1050 and 60Hz and triggered an autoconf and done. I didn't decide on 60Hz right away, but that's where I settled. The other choices were 70Hz and 75Hz.

Then, BOX....I used the Monitor app to change things and it saw that the monitor was different and settled on 1680x1050 and 70Hz (again not first choice, but where I settled). Why...when they were all 75Hz...the had slightly different ideas on where the image was centered, so I went with 3 different verticals so the monitor would have the desktop properly positioned for all 3. Wonder what I'll do when I get LHAVEN going? &#58;&#104;&#109;&#109;&#58;

Then ORAC, which was harder....the Monitor app wouldn't see that resolution, and reconfigure has apparently gone away. Eventually, I discovered xrandr and cvt and got it working. As 1680x1050 and 75Hz.

Mostly.....

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  11:49:00 am, by The Dreamer   , 2214 words  
Categories: Digital Photography, Hardware, Software, Computer, DVDs / NetFlix, WiFi, Storage

Morning Orac outage

Well, Orac was being somewhat unresponsive this morning.... Looks like early this morning the system stopped answering to Cacti, with the temperature of the GPU rising to a new high. Don't know what the high would've been, because there was no snmp data for a while. GPU temp did recover, but the display did not.

Ended up rebooting, needed the excuse to see external journal work....

Once backup, I switched back to internal journal...but one of maximum size rather than default size. And, then shutdown the system to extract the PCI Compact Flash card. During the reboot to see external journal work...I realized that I wasn't likely to see much performance gain from getting faster compact flash since the card itself was only UDMA/66. So the 133x CF is already faster than the card?

Probably should've fsck'd manually after the switch back....some discussion thread suggested doing this after fiddling with journal settings. But, its fsck'ng now after the boot back up. Apparently superblock had invalid external journal superblock hint? And, auto fsck failed, requiring manual fsck.

Downside of internal journal is that it can only be a max of 400MB (an improvement from the 128MB default I had before)...but that's only like 0.01% of my total space. And, there was a discussion thread that seemed to suggest a journal size of 0.2% would yield better improvement....I didn't do the whole 16GB CF card...though wonder how much that would've helped.... But 0.2% would call for a journal of ~10.9GB. Suppose I could turn off data journaling, especially since there are files that backuppc puts down that are bigger than the 400MB journal. Though I think the ordered/writeback modes usually just do metadata journaling, while I had switched it to data journaling when I was playing with external journals...but I didn't switch it back.

Wonder which of writeback or ordered would be more optimal for this FS? &#58;&#63;&#63;&#58;

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Now instead of subjecting some poor random forum to a long rambling thought, I will try to consolidate those things into this blog where they can be more easily ignored profess to be collected thoughts from my mind.

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