Mesa 26.0.8, which the Ubuntu runtime builds, carries the backport of
"zink: create views for samplers lazily", which dropped the depth/stencil
aspect check in init_sampler_view(). On drivers with
needs_zs_shader_swizzle (Imagination) every colour view with a constant-1
alpha, such as RGBX/BGRX textures, then got the red-only depth swizzle
view, so Steam's interface and games showed red as R=G=B.
Carry Icenowy Zheng's upstream fix d55418dae7 (Mesa MR 41923), which
restores the aspect check. It applies on top of patch 0004.
* fix(runtime): keep the Linux desktop installed across a runtime update
A runtime update replaces the whole runtime tree, and the desktop pack
is built against one runtime, so every update removed the installed
desktop. Since the runtime started updating by itself, this happened
without the user doing anything: the next Open showed "Install & open"
and downloaded the whole desktop again.
When the desktop was installed before the update, the same update job
now installs the new runtime's desktop pack right after the runtime,
with the update's progress. If that install fails, the runtime update
still counts as done and Open offers the install as before. A repair
from the session no longer installs the desktop a second time when the
runtime install already did.
* fix(runtime): roll back a failed desktop restore after a runtime update
If putting the desktop back fails after its archive started unpacking,
the install journal stayed behind, and every later launch, Steam
included, tried to resume it and stopped when that failed. The update
now rolls back the partial desktop with the desktop removal, which
restores the runtime's own files and clears the journal. Open then
offers the desktop install as before.
Whether the desktop was installed is now checked on its own, so a
repair of a damaged runtime also restores it.
* fix(session): do not install the desktop again after resuming it
Opening the desktop with an interrupted desktop install resumed that
install and then installed the desktop a second time. The second
install is now skipped when the resume already completed the desktop.
MaxsTechReview