Update Mesa to mesa-21.1.7 on Ubuntu 20.04

[Maniraj D]

With the recent MR https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9902 to Mesa, we (NVIDIA) have added ability to GBM to dynamically load the backends. So we request to upgrade mesa libs to its latest version (mesa-21.1.7) on Ubuntu 20.04 to use the added feature for our development.

[Timo Aaltonen (tjaalton)]

We just got 21.0.x from Ubuntu 21.04 backported, the next one will be 21.2.x from impish after it has released.

[Timo Aaltonen (tjaalton)]

Besides, 21.1.7 does not have that merge request in it, only master/21.2-branch do.

[Maniraj D (manirajd)]

Will that be updated only on impish (21.10) ? Actually we need the update on focal (20.04).

[Timo Aaltonen (tjaalton)]

I realize that, but that won't happen before impish has released. And even then it'll take a while to land, but will happen before 20.04.4 release.

In the meantime you can use a ppa version, there are several to choose from

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Maniraj D (manirajd)]

Hi Timo,

From https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1956915, I understood that Mesa 21.2.6 is backported to ubuntu0.1~20.04.1 and that is currently under 'focal-proposed', when we can expect that to be part of 'focal-updates' ?

I tried upgrading it with "sudo add-apt-repository ppa:savoury1/display && sudo apt upgrade" for now as mentioned in https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1956915. But the mesa package is not upgraded in my system.