That supposedly depends on the compositor. There may be compositors for very specific cases (e.g. Steam Deck) that handle resets very well, and those would like to be properly notified of all resets because that's how they get the best outcome, e.g. no corruption. A soft reset that is unhandled by userspace may result in persistent corruption.
Marek
On Tue, Apr 25, 2023 at 6:27 AM Michel Dänzer <michel.daenzer@xxxxxxxxxxx> wrote:
On 4/24/23 18:45, Marek Olšák wrote:
> Soft resets are fatal just as hard resets, but no reset is "always fatal". There are cases when apps keep working depending on which features are being used. It's still unsafe.
Agreed, in theory.
In practice, from a user PoV, right now there's pretty much 0 chance of the user session surviving if the GPU context in certain critical processes (e.g. the Wayland compositor or Xwayland) hits a fatal reset. There's a > 0 chance of it surviving after a soft reset. There's ongoing work towards making user-space components more robust against fatal resets, but it's taking time. Meanwhile, I suspect most users would take the > 0 chance.
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Earthling Michel Dänzer | https://redhat.com
Libre software enthusiast | Mesa and Xwayland developer
