Ciro Santilli @cirosantilli 35

Very unfortunate license "public domain license" with a "non religious" clause, whatever the fuck that is, which completely defeats the point of a public domain declaration:

The source code and text is under Public License and therefore can be used, translated and distributed at free will.
It is only banned to use the text and content for religious propaganda.

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Stacks Project by

Ciro Santilli 35  Updated 2025-04-18  +Created 1970-01-01

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Renders: stacks.math.columbia.edu/. HTML is one tiny section per page, making it unreadable.
LaTeX source: github.com/stacks/stacks-project

The book is very dry, extremelly boring unfortunately. Definition and theorem only for the most part.

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Windowing system by

Ciro Santilli 35  Updated 2025-04-18  +Created 1970-01-01

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Wayland by

Ciro Santilli 35  Updated 2025-04-18  +Created 1970-01-01

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They've been trying to get it to work forever, and it's beeen buggy forever:

Became the default on Ubuntu 21.04: www.omgubuntu.co.uk/2021/01/ubuntu-21-04-will-use-wayland-by-default

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Monitors by

Ciro Santilli 35  Updated 2025-04-18  +Created 1970-01-01

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Lenovo ThinkPad P14s gen4 amd by

Ciro Santilli 35  Updated 2025-04-18  +Created 1970-01-01

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Bought: November 2023 during Black Friday sale for £1,323.00 to be Ciro Santilli's main personal laptop.

Six years after, and we are 2x on every key spec (except processor Hz ;-) at about 1/2 the price and 1/2 the weight (though smaller 14" screen for greater portability), so not bad! Customized to max out each hardware spec:

Specs:

Processor: AMD Ryzen™ 7 PRO 7840U Processor (3.30 GHz up to 5.10 GHz)
Operating System: No Operating Systemselected upgrade
Operating System Language: No Operating System Languageselected upgrade
Microsoft Productivity Software: None
Memory: 64 GB LPDDR5X-6400MHz (Soldered)selected upgrade. Specs at: www.lenovo.com/gb/en/p/accessories-and-software/memory-and-storage/memory-and-storage-hard-drives/4xb1d04758 quotes "64 Gbps", i.e. 8 GB/s. dd count=1M if=/dev/zero of=tmp gives only 255 MB/s however.
Solid State Drive: 2 TB SSD M.2 2280 PCIe Gen4 Performance TLC Opalselected upgrade
Display: 14" WUXGA (1920 x 1200), IPS, Anti-Glare, Touch, 45%NTSC, 300 nits, 60Hz
Graphic Card: Integrated Graphics
The Ubuntu 23.10 "About system GUI describes its graphics as: Radeon 780M Graphics × 16, which e.g. www.techpowerup.com/gpu-specs/radeon-780m.c4020 documents as running the RDNA 3 microarchitecture.
Camera: 1080P FHD RGB/IR Hybrid with Microphone
Color: Thunder Black
Factory Color Calibration: No Factory Color Calibration
Wireless: Qualcomm Wi-Fi 6E NFA725A 2x2 AX & Bluetooth® 5.1 or above
Integrated Mobile Broadband: No Wireless WAN
Ethernet: Wired Ethernet
Near Field Communication: No NFC
Fingerprint Reader: Fingerprint Reader
Keyboard: Black - English (EU)selected upgrade
Battery: 4 Cell Li-Polymer 52.5Whselected upgrade
Power Cord: 65W USB-C Slim 90% PCC 3pin AC Adapter - UKselected upgrade
Electronic Privacy Filter: No ePrivacy Filter
Adobe Elements: None
Adobe Acrobat: None
Adobe Creative Cloud: None
Security Software: None
Cloud Security Software: No Cloud Security Software
Warranty: 3 Year Courier or Carry-in

Identifiers:

Ethernet MAC address: fc:5c:ee:24:fb:b4
Wi-Fi MAC address: 04:7b:cb:cc:1b:10

Upon arrival:

Weight: 1490 g
Charger weight: 323 g

Firmware according to sudo dmidecode -t bios:

Vendor: LENOVO
Version: R2FET33W (1.13 )
Release Date: 09/08/2023

Buy research:

www.phoronix.com/review/thinkpad-p14s-gen4 says Ubuntu running fine
Intel vs amd: the Intel ones could come with a discrete rtx A500 GPU. GPU likely makes laptop heavier and less power efficient. And both have basically the same benchmark which is crazy:
- www.videocardbenchmark.net/gpu.php?gpu=RTX+A500+Laptop+GPU&id=4649
- www.videocardbenchmark.net/gpu.php?gpu=Radeon+780M&id=4818
So the only downside is not being able to run CUDA.
thought about Yoga or other Ultrabook options, but 2x price at same specs, so nah...

Log:

2024-01-17: firmware update:

Vendor: LENOVO
Version: R2FET36W (1.16 )
Release Date: 10/24/2023

Actually fixed performance mode: askubuntu.com/questions/604720/setting-to-high-performance/1343879#1343879

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X Window System by

Ciro Santilli 35  Updated 2025-04-18  +Created 1970-01-01

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