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authorY.C. Chen <yc_chen@aspeedtech.com>2018-10-03 14:57:47 +0800
committerDave Airlie <airlied@redhat.com>2018-11-22 10:56:17 +1000
commit1a37bd823891568f8721989aed0615835632d81a (patch)
tree5a917b4bab660b949d8872f9b46e4331d68faf2a
parent5478ad10e7850ce3d8b7056db05ddfa3c9ddad9a (diff)
downloadlinux-1a37bd823891568f8721989aed0615835632d81a.tar.bz2
drm/ast: change resolution may cause screen blurred
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> Cc: <stable@vger.kernel.org> Tested-by: Jean Delvare <jdelvare@suse.de> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
-rw-r--r--drivers/gpu/drm/ast/ast_mode.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 5e77d456d9bb..f06aae7701ed 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;