From: Daniel Miess <daniel.miess@xxxxxxx>
This partially reverts commit 94bea120b3f5 ("drm/amd/display: Fix
possible underflow for displays with large vblank").
[Why]
The increased value of VBlankNomDefaultUS causes underflow at the
desktop of an IP KVM setup
[How]
Change the value from 800 back to 668
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx>
Reviewed-by: Jun Lei <jun.lei@xxxxxxx>
Acked-by: Hamza Mahfooz <hamza.mahfooz@xxxxxxx>
Signed-off-by: Daniel Miess <daniel.miess@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c
index c9afddd11589..d9e049e7ff0a 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c
@@ -33,7 +33,7 @@
#include "dml/display_mode_vba.h"
struct _vcs_dpi_ip_params_st dcn3_14_ip = {
- .VBlankNomDefaultUS = 800,
+ .VBlankNomDefaultUS = 668,
.gpuvm_enable = 1,
.gpuvm_max_page_table_levels = 1,
.hostvm_enable = 1,
--
2.40.1
