[lkml]   [2019]   [Jun]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
Subject[PATCH AUTOSEL 5.1 032/186] drm/nouveau: fix duplication of nv50_head_atom struct
From: Peteris Rudzusiks <>

[ Upstream commit c4a52d669690423ee3c99d8eda1e69cd0821fcad ]

nv50_head_atomic_duplicate_state() makes a copy of nv50_head_atom
struct. This patch adds copying of struct member named "or", which
previously was left uninitialized in the duplicated structure.

Due to this bug, incorrect nhsync and nvsync values were sometimes used.
In my particular case, that lead to a mismatch between the output
resolution of the graphics device (GeForce GT 630 OEM) and the reported
input signal resolution on the display. xrandr reported 1680x1050, but
the display reported 1280x1024. As a result of this mismatch, the output
on the display looked like it was cropped (only part of the output was
actually visible on the display).

git bisect pointed to commit 2ca7fb5c1cc6 ("drm/nouveau/kms/nv50: handle
SetControlOutputResource from head"), which added the member "or" to
nv50_head_atom structure, but forgot to copy it in

Fixes: 2ca7fb5c1cc6 ("drm/nouveau/kms/nv50: handle SetControlOutputResource from head")
Signed-off-by: Peteris Rudzusiks <>
Signed-off-by: Ben Skeggs <>
Signed-off-by: Sasha Levin <>
drivers/gpu/drm/nouveau/dispnv50/head.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/head.c b/drivers/gpu/drm/nouveau/dispnv50/head.c
index 8efb778a3b207..06ee23823a689 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/head.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/head.c
@@ -413,6 +413,7 @@ nv50_head_atomic_duplicate_state(struct drm_crtc *crtc)
asyh->ovly = armh->ovly;
asyh->dither = armh->dither;
asyh->procamp = armh->procamp;
+ asyh->or = armh->or;
asyh->dp = armh->dp;
asyh->clr.mask = 0;
asyh->set.mask = 0;
 \ /
  Last update: 2019-06-01 15:19    [W:0.235 / U:0.584 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site