diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2019-12-10 12:15:44 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2019-12-10 21:34:52 +1000 |
| commit | 3d1890ef8023e61934e070021b06cc9f417260c0 (patch) | |
| tree | ee37baca65101077919e4afe54497304362de0ac /drivers/gpu/drm/nouveau | |
| parent | ae5769d4670982bc483885b120b557a9ffd57527 (diff) | |
drm/nouveau/kms/nv50-: fix panel scaling
Under certain circumstances, encoder atomic_check() can be entered
without adjusted_mode having been reset to the same as mode, which
confuses the scaling logic and can lead to a misprogrammed display.
Fix this by checking against the user-provided mode directly.
Link: https://bugs.freedesktop.org/show_bug.cgi?id=108615
Link: https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/464
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau')
| -rw-r--r-- | drivers/gpu/drm/nouveau/dispnv50/disp.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index 9ac47fe519f8..63425e246018 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -326,9 +326,9 @@ nv50_outp_atomic_check_view(struct drm_encoder *encoder, * same size as the native one (e.g. different * refresh rate) */ - if (adjusted_mode->hdisplay == native_mode->hdisplay && - adjusted_mode->vdisplay == native_mode->vdisplay && - adjusted_mode->type & DRM_MODE_TYPE_DRIVER) + if (mode->hdisplay == native_mode->hdisplay && + mode->vdisplay == native_mode->vdisplay && + mode->type & DRM_MODE_TYPE_DRIVER) break; mode = native_mode; asyc->scaler.full = true; |