Ubuntu 20.04... correct monitor resolution

[Liam Proven]

On Fri, 7 Aug 2020 at 09:00, M. Fioretti <mfioretti at nexaima.net> wrote:
>
> of course you are right, sorry. All I can say is that this situation
> got me completely by surprise. Installing a Linux distribution and
> finding it unable to recognize and handle by itself a common printer
> and monitor... felt like being back in the 90s, to manual modeline
> calculations and manual compilation of drivers.  Especially because
> both printer and monitor had been detected and working flawlessly for
> years on several other distributions.

Um. Well, if it felt like that, then why not provide the info that you
would have given then? :-)

> 01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RS780L [Radeon 3000] (prog-if 00 [VGA controller])

OK. It is an  ATI Radeon 3000 IGP according to:
https://www.techpowerup.com/gpu-specs/ati-rs780.g67

This is a 2008 graphics controller. Old GPUs go out of support in
time, you know. My Toshiba Satellite Pro A300 (a Vista-era laptop) had
a decent ATI GPU that dropped out of support in 12.04-01. It only
worked in 12.04 and if I installed the HWE stack I lost the AMD fglrx
driver.

A few versions later, the FOSS driver caught up and was OK.

I even have expensive nVidia Quadro FIRE graphics adaptors at work
which no longer work -- any nVidia driver which suppports them won't
work on a modern Linux, and the FOSS driver now has dropped suppport
too.

GPUs are gamer kid. "Pro" GPUs are underclocked gamer kit. They are
seen as disposable.

Are you using GNOME?

If so, are you using X.org or Wayland?

Whichever you are using, try the other.

Others are having problems too:
https://askubuntu.com/questions/1238066/screen-flickering-with-radeon-3000-intgreted-graphics-on-ubuntu-20-04

The official driver is here:
https://www.amd.com/en/support/graphics/integrated-motherboard-graphics/ati-radeon-3xxx-series/ati-radeon-3000

Note:
Automated installer and Display Drivers for Xorg 6.9 to Xserver 1.12
and Kernel version up to 3.4

i.e. very old and won't work.

I think you will just have to get a cheapo graphics card and put it
into a PCI-E slot.

Are you on BIOS H-H?

https://www.msi.com/Motherboard/support/760GM-P23-FX.html#down-bios

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