Jan-Lukas Else

Thoughts of an IT expert

💬 Micro: XXXX-XX-28

This section is for short notes, thoughts or IndieWeb interactions.


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I can’t really explain why this is happening, but I noticed that my home server is now idling at 7 watts instead of 13 watts as before. I checked powertop, and it seems that the CPU is staying at C7 (pc7) for about 85% of the time, which seems to be the most power efficient state.

Maybe it’s a result of moving my Baïkal instance to my VPS or some other updates? Maybe Home Assistant or Tailscale? The operating system is still Ubuntu 22.04. What else could explain almost 50 percent power reduction without any hardware or major software changes?

Update: I found a likely source: When the powered-off TV is connected with an HDMI cable to the DisplayPort adapter plugged-in into the home server, it idles at about 13 watts. When I remove the HDMI cable from the DP adapter, it goes back to 7 watts. So it might have to do something with the integrated GPU. I guess, I will leave the TV disconnected unless I really need it.

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I captured the first real snow this winter this morning ❄️

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The field near my second home… Walking here reminds me of when I walked here a year and a half ago, debating whether to accept the new job offer. It feels like an eternity ago. But it was a good decision!

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Viewing PDFs in Firefox works again

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A few months ago I complained about Firefox not being able to open PDFs without downloading them. Recently, I also wanted to start developing a custom Firefox addon to fix this behavior.

So what happened? I noticed that it didn’t happen on my work computer. Very strange…

I dug into the settings and found that on my work computer, Firefox was configured to open PDFs in Firefox, while on my home computer, it was configured to ask where to open them first. Changing it to “Open in Firefox” seems to work without downloading the PDF and saving it to the Downloads folder first. This was definitely not the case last year.

Searching online, I also found another hidden preference browser.download.open_pdf_attachments_inline. I guess it’s for when the HTTP response header Content-Disposition contains attachment. So if you enable it, it should also open those PDFs that are configured to be downloaded without downloading them.

Maybe the behavior changed when Firefox added the feature to open PDFs in the browser without downloading on Android?

At least I’m happy again. 😄

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Some photo impressions from our walk today through the nearby park in Kassel.

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📍 Karlsaue, Germany

Thanks to mobile working, I had a few nice days with my girlfriend. ❤️

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Yesterday I ordered a blanket for an incredible amount of money, more precisely a weighted blanket. Now I hope that it will be delivered quickly and that it really has the positive effects that are being advertised. Although I can usually fall asleep quickly in the evening with a sleeping mask and earplugs, I never manage to sleep through the night, I am never woken up by the alarm clock because I wake up earlier. In the morning I feel tired almost every day, sometimes even the whole day, which then also limits my concentration and mental fitness. So I hope this magic blanket helps and is worth the money. 🙏

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Jan Boddez:

Look, I love (personal) blogs, but I couldn’t care less about your “strategy for making money writing on the Internet.” But, I’ve already said that.

Is a blog really that personal when it’s purpose is just to make money? 🤔 I would call that a business blog. Probably a personal business blog.

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I also follow “Hey ok yay?” (English) and “Is lieb?” (German, by the same author).

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Jan-Lukas Else