Hi
Am 16.04.25 um 17:22 schrieb Wakko Warner:
Thomas Zimmermann wrote:
Fix an off-by-one error when setting the vblanking start in
<VBLKSTR>. Commit d6460bd52c27 ("drm/mgag200: Add dedicated
variables for blanking fields") switched the value from
crtc_vdisplay to crtc_vblank_start, which DRM helpers copy
from the former. The commit missed to subtract one though.
Applied to 6.14.2. BMC and external monitor works as expected.
Great. Thanks for testing. Can I add your Tested-by tag to the commit?
Best regards
Thomas
Thank you.
Reported-by: Wakko Warner <[email protected]>
Closes:
https://lore.kernel.org/dri-devel/CAMwc25rKPKooaSp85zDq2eh-9q4UPZD=rqsdbrp1faagdnm...@mail.gmail.com/
Reported-by: ???????????? <[email protected]>
Closes:
https://lore.kernel.org/all/[email protected]/
Closes: https://bbs.archlinux.org/viewtopic.php?id=303819
Signed-off-by: Thomas Zimmermann <[email protected]>
Fixes: d6460bd52c27 ("drm/mgag200: Add dedicated variables for blanking fields")
Cc: Thomas Zimmermann <[email protected]>
Cc: Jocelyn Falempe <[email protected]>
Cc: Dave Airlie <[email protected]>
Cc: [email protected]
Cc: <[email protected]> # v6.12+
---
drivers/gpu/drm/mgag200/mgag200_mode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c
b/drivers/gpu/drm/mgag200/mgag200_mode.c
index fb71658c3117..6067d08aeee3 100644
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -223,7 +223,7 @@ void mgag200_set_mode_regs(struct mga_device *mdev, const
struct drm_display_mod
vsyncstr = mode->crtc_vsync_start - 1;
vsyncend = mode->crtc_vsync_end - 1;
vtotal = mode->crtc_vtotal - 2;
- vblkstr = mode->crtc_vblank_start;
+ vblkstr = mode->crtc_vblank_start - 1;
vblkend = vtotal + 1;
linecomp = vdispend;
--
2.49.0
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)
