Hexorg

joined 1 year ago
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[–] Hexorg@beehaw.org 2 points 1 month ago

Yup, I’ve been plagued by this bug for a long time. I’m very excited to use this!

[–] Hexorg@beehaw.org 1 points 1 month ago* (last edited 1 month ago) (1 children)

Good point! I wonder if we’re spoiled by computer invention though. Would be interesting to compare preWW2 invention rates and now. I suspect computers just made everything else easier, but now we’re back to hard problems

[–] Hexorg@beehaw.org 4 points 2 months ago (3 children)

To be fair, there’s only been 24 year’s of 21 century. Most things you gave listed happened at the end of the 20th century. But also the question is somewhat self negating - we won’t know what’s the greatest invention until we see it working great, but it takes much more than 24 years to take an invention from concept to consumption. For example computational biology is kicking off. Computer aided dna generation started in the past 24 years. But it’s so new few people think about it. Just like no one thought of internet as the greatest invention in the 70s… it was just too new

 

I had the weirdest of a problem. Two computers communicating with each other over ping and TFTP works. When I boot one of them into U-boot (a bootloader that supports TFTP boot) it can’t ping not load tftp of the other machine complaining on ARP timeouts.

I swapped with a dumb switch - all works. Everything else (machines, cables) are the same. The managed switch is a Cisco switch and I have a serial console to it, but I’m not familiar with managing those switches - what feature is potentially blocking u-boot's arp packets?

I’ve double checked with tcpdump - the other machine never seer u-boot's arp packets, but does when the same board is booted into Linux. I’ve also checked Cisco's monitor event-trace arp continuous and it didn’t print any packets but it did say link status went from up to down to back up when I rebooted.

Is there some sort of Mac filter on Cisco switches?

[–] Hexorg@beehaw.org 0 points 1 year ago (1 children)

Could it be something like CPU generated just enough heat to be passively cooled and having hdmi plugged in causes use of pci and the CPU heats up ever so slightly to trigger the need for cooling?