[closed] Error : no suitable video mode found

I have downloaded pureos-10~devel-gnome-live-20211002_amd64.iso on https://pureos.net/download/.
I have burned iso using Etcher as follows https://tracker.pureos.net/w/recommendations/burn-using-etcher/.
Everything went well. :innocent:
But booting on the USB key I get the following message (after grub) :
Error : no suitable video mode found. Booting blind mode:sob:
My laptop :
Lenovo ThinkPad P14s Gen 1 8-Core AMD Ryzen 7 PRO 4750U with AMD Radeon™ Renoir RX Vega

PureOS doesn’t include proprietary drivers, like those needed for most modern AMD and Nvidia GPUs. On top of that, AMD’s Linux drivers are a mess right now, even if you were using a kernel with AMD GPU support.

Thank you for your reply.
Does this mean that there is no hope of using ,(or even installing) PureOS on other Laptops ?
Do I need to seriously ask myself questions about Librem 5 Thinkpad interoperability?

PureOS is a fully-libre OS – it works on computers which use hardware that have fully-open source drivers. That limits its compatibility a bit.

I’m not sure what you’re asking. Why would the OS on the phone limit it’s ability to connect to your laptop?

Yes of course.
I am especially disappointed not to be able to use and test the operating system of my long-awaited future smartphone.

you can run it in a VM. And you can even run it in the phone form factor. Running PureOS on a laptop doesn’t tell you much about how it works on a phone, IMO

Thanks, I’ll try it un a VM.

actually that is broken GRUB on PureOS install media - does not load gfx payload. (normal behaviour of UEFI grub)
i had this issue even on intel based UEFI system.

in order to boot such media download ultimate grub2 disk. boot grub from it, then plug pureos media , and allow it to detect grub config (select propper section in menu) , then boot.

As i marked above if you wish to play with pureos

  1. https://www.supergrubdisk.org/super-grub2-disk/ <- download super grub disk, burn it to separate drive
  2. use pureos live (not installer media) on second drive
  3. boot super-grub2-disk
  4. put pureos live media to usb, and select detect grub.cfg
  5. boot pureos
  6. you will get commandline as pureos will not able to start wayland/Xorg
  7. nano /etc/apt/sources.list , add line:
    deb http://ftp.pl.debian.org/debian/ bullseye non-free
  8. apt update
  9. apt install firmware-amd-graphics
  10. service gdm restart

or just use Debian 11 installation media , PureOS is just a stripped debian 11 , and PureOS specific packages you can just add to debian :wink:

I booted into blind mode and it eventually worked

It says Display output not active, but after a while normally boots