drm: check syncobj timeline support before advertising protocol (#11117)

Prevents crashes on systems where DRM driver lacks syncobj timeline
support (e.g., Apple Silicon with Honeykrisp driver). Applications
like Zed and WezTerm would crash with 'Timeline failed importing'
when trying to use explicit sync.

Fixes #8158 #8803

---------

Co-authored-by: mvonarx <matthias.vonarx@sitrox.com>
This commit is contained in:
mavonarx 2025-07-23 23:11:07 +02:00 committed by GitHub
parent c51c6e38ac
commit ecc04e8ba7
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GPG key ID: B5690EEEBB952194
4 changed files with 33 additions and 2 deletions

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@ -1,12 +1,16 @@
#include "SyncTimeline.hpp"
#include "../../defines.hpp"
#include "../../managers/eventLoop/EventLoopManager.hpp"
#include "../../Compositor.hpp"
#include <xf86drm.h>
#include <sys/eventfd.h>
using namespace Hyprutils::OS;
SP<CSyncTimeline> CSyncTimeline::create(int drmFD_) {
if (!g_pCompositor->supportsDrmSyncobjTimeline())
return nullptr;
auto timeline = SP<CSyncTimeline>(new CSyncTimeline);
timeline->m_drmFD = drmFD_;
timeline->m_self = timeline;
@ -20,6 +24,9 @@ SP<CSyncTimeline> CSyncTimeline::create(int drmFD_) {
}
SP<CSyncTimeline> CSyncTimeline::create(int drmFD_, CFileDescriptor&& drmSyncobjFD) {
if (!g_pCompositor->supportsDrmSyncobjTimeline())
return nullptr;
auto timeline = SP<CSyncTimeline>(new CSyncTimeline);
timeline->m_drmFD = drmFD_;
timeline->m_syncobjFD = std::move(drmSyncobjFD);