From 26a9fa81488a10f637d066c1ffabf1b780a0e48a Mon Sep 17 00:00:00 2001 From: Vincent Vanlaer Date: Fri, 15 Feb 2019 15:59:09 +0100 Subject: [PATCH] Add workaround for hardware cursors on nouveau --- backend/drm/drm.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/backend/drm/drm.c b/backend/drm/drm.c index 7713b5bb..a2a733f5 100644 --- a/backend/drm/drm.c +++ b/backend/drm/drm.c @@ -729,6 +729,15 @@ static bool drm_connector_set_cursor(struct wlr_output *output, bo = copy_drm_surface_mgpu(&plane->mgpu_surf, plane->surf.back); } + if (bo) { + // workaround for nouveau + // Buffers created with GBM_BO_USER_LINEAR are placed in NOUVEAU_GEM_DOMAIN_GART. + // When the bo is attached to the cursor plane it is moved to NOUVEAU_GEM_DOMAIN_VRAM. + // However, this does not wait for the render operations to complete, leaving an empty surface. + // see https://bugs.freedesktop.org/show_bug.cgi?id=109631 + // The render operations can be waited for using: + glFinish(); + } bool ok = drm->iface->crtc_set_cursor(drm, crtc, bo); if (ok) { wlr_output_update_needs_swap(output);