[PATCH] drm/ast: change resolution may cause screen blurred

From: "Y.C. Chen" yc_chen@aspeedtech.com

The value of pitches is not correct while calling mode_set. The issue we found so far on following system: - Debian8 with XFCE Desktop - Ubuntu with KDE Desktop - SUSE15 with KDE Desktop

Signed-off-by: Y.C. Chen yc_chen@aspeedtech.com --- drivers/gpu/drm/ast/ast_mode.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c index 5e77d45..f06aae7 100644 --- a/drivers/gpu/drm/ast/ast_mode.c +++ b/drivers/gpu/drm/ast/ast_mode.c @@ -568,6 +568,7 @@ static int ast_crtc_do_set_base(struct drm_crtc *crtc, } ast_bo_unreserve(bo);

+ ast_set_offset_reg(crtc); ast_set_start_address_crt1(crtc, (u32)gpu_addr);

return 0;