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Upgrade Plan

Besides the Linux journey, what is the main use of my laptop (Samsung 305u1a)?

Specs

Here

  • Screen: 11.6" (1366x768)
  • Processor: AMD E-450 1.65 GHz (Dual-Core)
  • Storage: SATA revision 2.0 (3 Gbit/s, 300 MB/s, Serial ATA-300)
  • RAM: PC3-10600, Memory Speed 1333 MHz, DDR3 SDRAM (SO-DIMM 204-pin), Max Supported Size 8 GB, 1 slot
  • Wireless: 802.11b/g/n, Bluetooth 3.0 HS

BIOS vs UEFI

I installed the "majordomo" distribution with an Arch flavor on my SSD. Being a modern distribution, it detected that UEFI would be suitable for me and only installed that bootloader. I had seen the word UEFI in my laptop's BIOS, so I thought it would work fine. However, my laptop refused to boot in this format.

So I needed to revert to legacy mode, as that's probably the only way it can boot. For this, I needed to create a special BIOS partition and install GRUB with a specific target (target=i386-pc). The motherboard refused to recognize this option just like the previous one.

Something tells me that my laptop doesn't understand GPT partitioning either, and I need to convert the disk to MBR (msdos), preferably without reinstalling. ** Screams in binary **

Be a Server

Auto login was done with agetty.

Turn off the monitor with the vbetool

sudo pacman -S vbetool
sudo vbetool dpms off && read -s -n 1 && sudo vbetool dpms on

Reduce brightness

echo "10" | sudo tee /sys/class/backlight/radeon_bl0/brightness

Lid?

cat /proc/acpi/wakeup

Seems like it doesn't trigger But it hibernates! Say no to that silly technique

sudo systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target

And it turns off the monitor automatically

Radeon is broken after updating Arch from 2020 in 2025

radeon.si_support=1 radeon.cik_support=1 amdgpu.si_support=0 amdgpu.cik_support=0

https://www.x.org/wiki/RadeonFeature/

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