From: Takashi Iwai tiwai@suse.com
The framebuffer pitch calculation needs to be done differently for bpp == 24 - check xf86-video-mga for reference.
Signed-off-by: Egbert Eich eich@suse.de --- 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 020a623..c8983f9 100644 --- a/drivers/gpu/drm/mgag200/mgag200_mode.c +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c @@ -877,7 +877,7 @@ static int mga_crtc_mode_set(struct drm_crtc *crtc,
pitch = crtc->fb->pitches[0] / (crtc->fb->bits_per_pixel / 8); if (crtc->fb->bits_per_pixel == 24) - pitch = pitch >> (4 - bppshift); + pitch = (pitch * 3) >> (4 - bppshift); else pitch = pitch >> (4 - bppshift);