Author Archives: peter

Da Farfar hilste på Kongen

Posted on July 4, 2022 by peter

Deborahs Farfar Peter Christian Lorenzen udvandrede fra Hjerpsted til USA i 1923, og blev gift med Ingeborg Lorenzen i 1925.  Ingeborg Lorenzen var datter af Hans Christian Lorenzen som udvandrede til USA fra Broderup-mark i 1896, og Caroline Hansen som … Continue reading →

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Catalina or High Sierra on MacBook A1286 2011 with broken GPU

Posted on June 19, 2022 by peter

The 15″ and 17″ Macbook Pro from 2011 are known for their dGPU failures (AMD-GPU). In my previous post  Ubuntu 22.04 on MacBook A1286 2011 with broken GPU  I described how I got this MacBook working under Ubuntu. Here is … Continue reading →

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Ubuntu 22.04 on MacBook A1286 2011 with broken GPU

Posted on June 9, 2022 by peter

The 15″ and 17″ Macbook Pro from 2011 are known for their dGPU failures (AMD-GPU). There are both software and hardware hacks to turn off the broken dGPU and use the iGPU found on the Intel processor.  The easiest is, … Continue reading →

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Using Simply.com as mailserver from Gmail

Posted on May 17, 2022 by peter

We have been very happy Google users for many many years. In 2008 we started using Google Apps for Your Domain, handling storepeter.dk and lorenzen.us In  2016 Google Apps was renamed to G-Suite, but it was the same thing, maybe … Continue reading →

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Opsætning af OBi100/OBi200 mod viptel.dk

Posted on May 6, 2022 by peter

Dansk telefon-nummer til min Danske Telefon Vi har brugt VoIP-telefoni i mere end 10 år nu, vores hjemme telefon kører via Google-Voice, (Massachusetts no), og vi har yderligere 3 VoIP  linier.  Sidst jeg skrev om vore VoIP erfaringer var i … Continue reading →

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Ubuntu 22.04 on iMac a1312 (2011) w. 4850 video card

Posted on April 25, 2022 by peter

For inspiration see: Github rowanphipps/macOS_rEFInd_guide EFI-Booting Ubuntu on a Mac How to Install and Set up Ubuntu 20.04 on an Old MacBook Pro Here is what I did: Download ubuntu-22.04 and writing it onto a USB-stick restart the iMac, when … Continue reading →

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iMac a1312 power supply 614-0446 repair

Posted on April 18, 2022 by peter

–WORK IN PROGRESS — My late 2009 i5 iMac had a fault on the motherboard which shorted the PP12v_G3H to ground, not even the first of the diagnostics LED lighted up. No diagnostics lights normally indicates a dead power supply, … Continue reading →

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I²C or SMBus sniffer using Arduino

Posted on April 11, 2022 by peter

I had a need to continuously monitor a I²C bus, so I looked around for an Arduino solution, but didn’t find anything that suited my needs, so I wrote one myself.  None of the I²C-sniffers I was able to find … Continue reading →

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iMac 27″ 2011 for sale $250 (was $290)

Posted on March 14, 2022 by peter

CPU Intel  2.7GHz i5-2500s Quad-core RAM 8Gb upgradeable to 32Gb 27″ 2560 x 1440 display (LED backlit) 128 Gb Samsung SSD 2 Tb Harddrive No keyboard nor mouse included in price Contact via Craigslist Boston-South-Shore $290 cash on pickup Extra … Continue reading →

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Installing Rocky-8.4 (RHEL) into a live ZFS filesystem

Posted on October 31, 2021 by peter

I have been using ZFS sinze 2009 on various operating systems from FreeNAS over Illumos, FreeBSD and Ubuntu. Hence my ZFS filesystem lives on, even if the operating systems get updated/changed or even replaced. And who cares what the name … Continue reading →

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