diff options
| -rw-r--r-- | src/libsystemd-terminal/grdev-drm.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/libsystemd-terminal/grdev-drm.c b/src/libsystemd-terminal/grdev-drm.c index 232321c0e2..dba6db2691 100644 --- a/src/libsystemd-terminal/grdev-drm.c +++ b/src/libsystemd-terminal/grdev-drm.c @@ -1158,8 +1158,21 @@ static int grdrm_crtc_commit_flip(grdrm_crtc *crtc, grdev_fb *basefb) { assert(basefb); assert(pipe); - if (!crtc->applied && !grdrm_modes_compatible(&crtc->kern.mode, &crtc->set.mode)) + if (!crtc->applied) { + if (!grdrm_modes_compatible(&crtc->kern.mode, &crtc->set.mode)) + return 0; + + /* TODO: Theoretically, we should be able to page-flip to our + * framebuffer here. We didn't perform any deep modeset, but the + * DRM driver is really supposed to reject our page-flip in case + * the FB is not compatible. We then properly fall back to a + * deep modeset. + * As it turns out, drivers don't to this. Therefore, we need to + * perform a full modeset on enter now. We might avoid this in + * the future with fixed drivers.. */ + return 0; + } fb = fb_from_base(basefb); |