How to bring up the video driver on an old Xubuntu 18.04 laptop?

Question

Xubuntu

I got an old Airis 755II4 laptop. I installed Xubuntu 18.04 on it. But here's the strange thing - when the installation was going on - the image was full screen, and then - only about a quarter, the rest is simply cut off. Manipulations with xrandr gave nothing. It was possible to find out that if you interrupt the system boot at the logo stage, then at the next boot the system will boot to full screen. But after a reboot, everything returns as it was. I assume the system is using different drivers. How to make sure that everything works correctly?

Answer 1

The question is a little off topic, but why did they put 18.04 and not 20.04?
Google did not say anything about this laptop, some kind of Chinese non-name? what kind of vidyaha does he have, lspci show something.

if you interrupt the system boot at the logo stage, then at the next boot the system will boot to full screen

what a tin, but it is obvious that the problem is in the detection of linux equipment.
The logo stage is framebufer mode, it's simple and sawed first of all and it usually works without glitches (but without graphics and video acceleration by itself), if you don't overcome your problem, force the fbdev driver in xorg.conf (you can vesa , which works even more everywhere, but it is mega slow)
It seems that you can automatically configure it by running sudo dpkg-reconfigure xf86-video-fbdev or something like that, well, in extreme cases, pick xorg.conf

Answer 2

The laptop is very old. There's a Pentium 4 and 1 GB of memory inside. More recent versions of the system are already 64 bit, i.e. won't get up. It would be even easier to put something on it, but, apparently, my hands are crooked - it doesn’t work out.
The lspci command outputs the video adapter:
00:02.0 VGA compatible controller Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 03)
The logo also appears with a truncated screen.
Running the command you mentioned shows that the xf86-video-fbdev package is not installed.
The xorg.conf file cannot be found.