From: Takashi Iwai <tiwai@xxxxxxx> Subject: drm/cirrus: correct register values for 16bpp When the mode is set with 16bpp on QEMU, the output gets totally broken. The culprit is the bogus register values set for 16bpp, which was likely copied from from a wrong place. Addresses https://bugzilla.novell.com/show_bug.cgi?id=799216 Signed-off-by: Takashi Iwai <tiwai@xxxxxxx> Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> Cc: David Airlie <airlied@xxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/cirrus/cirrus_mode.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff -puN drivers/gpu/drm/cirrus/cirrus_mode.c~drm-cirrus-correct-register-values-for-16bpp drivers/gpu/drm/cirrus/cirrus_mode.c --- a/drivers/gpu/drm/cirrus/cirrus_mode.c~drm-cirrus-correct-register-values-for-16bpp +++ a/drivers/gpu/drm/cirrus/cirrus_mode.c @@ -273,8 +273,8 @@ static int cirrus_crtc_mode_set(struct d sr07 |= 0x11; break; case 16: - sr07 |= 0xc1; - hdr = 0xc0; + sr07 |= 0x17; + hdr = 0xc1; break; case 24: sr07 |= 0x15; _ -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html