"App Centre" aka snap-store is living an interesting life.

[Ralf Mardorf]

On Thu, 2024-10-24 at 11:39 +0100, Ian Bruntlett wrote:
> > > No provider of glFenceSync found.  Requires one of:
> > 
> > Searching for that error with snap store yields numerous hits. Have
> > you looked at those? I am on my phone so not easy to do in depth
> > research. 
> 
> Yes, it seems to have appeared in Ubuntu 23.10. I'll do some in depth
> research this afternoon.

Hi,

I've done this search:
https://www.google.com/search?q=No+provider+of+glFenceSync+found.
Looked at the third hit:
https://bbs.archlinux.org/viewtopic.php?id=266658
Looked at the fourth hit:
https://bugs.launchpad.net/snap-store-desktop/+bug/2047739
Looked at the first hit:
https://askubuntu.com/questions/1490737/app-center-opens-as-a-blank-screen-in-23-10

Seemingly you can either disable opengl for the App Center by

"Settings ⇨ Apps ⇨ App Center ⇨ Permissions and turn off opengl"
- https://askubuntu.com/questions/1490737/app-center-opens-as-a-blank-screen-in-23-10

or

"OpenGL 2.1 with i915 driver

The classic mesa driver for Gen 3 GPUs [snip] reports OpenGL 2.0 by
default, because the hardware is not fully compatible with OpenGL
2.1.[snip] OpenGL 2.1 support can be enabled manually by setting
/etc/drirc or ~/.drirc options like:

/etc/drirc

<driconf>
...
    <device driver="i915">
        <application name="Default">
            <option name="stub_occlusion_query" value="true" />
            <option name="fragment_shader" value="true" />
        </application>
    </device>
...
</driconf>

Note:

The reason of this step back was Chromium and other applications' bad
experience. If needed, you might edit the drirc file in a "app-specific"
style, see
here https://dri.freedesktop.org/wiki/ConfigurationInfrastructure/ , to
disable OpenGL 2.1 on executable chromium for instance.
The new [snip] i915 driver [snip] always reports OpenGL 2.1, so this
setting is not needed for that driver.

" - https://wiki.archlinux.org/title/Intel_graphics#OpenGL_2.1_with_i915_driver

Regards,
Ralf