bug#81239: 30.2; Leftover text artifacts with NVIDIA/Wayland

Den mån 15 juni 2026 kl 08:04 skrev Radon Rosborough via Bug reports
for GNU Emacs, the Swiss army knife of text editors
<[email protected]>:
> I am running Emacs 30.2 on GNOME 50.1 on Arch Linux (all relevant
> packages from the official repos and current as of 2026-05-20). My
> hardware is the System 76 Oryx Pro 6, which uses NVIDIA GeForce RTX
> 2060 Mobile (TU106M) as the discrete graphics card, and I have
> configured Mutter to use the NVIDIA card as the primary GPU, since
> rendering over HDMI is unusably laggy on this hardware's integrated
> GPU for some reason.
>
> I feel pretty confident that this is an issue specifically with the
> combination of NVIDIA and Wayland. It didn't occur before I migrated
> (or rather, was forced to migrate, by GNOME dropping support) from
> Xorg to Wayland, and it doesn't occur on my Framework laptop that is
> also running Emacs on the same Arch Linux configuration but has an
> Intel graphics card.

I have the exact same problem! I didn't bother to report it myself
because graphics issues like there are usually not Emacs' fault but a
symptom of an underlying driver issue.

My setup consists of an an ASUS Zenbook 14 OLED UX3405 - Ultra 9
laptop with an Intel Arc iGPU (i915 driver), Arch Linux, Wayland, and
KDE Plasma. Same problem regardless of Emacs version.

Because our setups are so different perhaps the common denominator is
XWayland?

Den mån 15 juni 2026 kl 13:42 skrev Eli Zaretskii <[email protected]>:
> If you think it's due to NVIDIA and Wayland, then why is it an Emacs
> bug reported here?  We have no ways of affecting any of these two...
>
> And doesn't GTK build on Wayland have serious problems anyway?  I
> think we advise against that combination.

I think Radon (like me) is running the standard gtk/x11 build of
emacs. Wayland runs x11 programs in an emulation mode called
XWayland. I bet Emacs does something that exposes a bug either in
XWayland or in some of the underlying graphics stack.


--
mvh Björn Lindqvist