[PATCH xserver] modesetting: Hide cursor when initializing crtc

[Eric Engestrom]

On Wed, Aug 31, 2016 at 01:55:14PM +0200, Hans de Goede wrote:
> When Xorg gets started directly from a wayland-gdm the crtc still has the
> wayland hw cursor set. Combine this with Xorg immediately falling back to
> a sw cursor because a slave-output has a monitor attached at startup; and
> we end up with the wayland hardware cursor overlay fixed in its last
> position + the Xorg sw cursor resulting in 2 cursors.
> 
> This commit fixes this by hiding any left-over cursors when initializing
> the crtc.
> 
> Signed-off-by: Hans de Goede <hdegoede at redhat.com>
> ---
>  hw/xfree86/drivers/modesetting/drmmode_display.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/hw/xfree86/drivers/modesetting/drmmode_display.c b/hw/xfree86/drivers/modesetting/drmmode_display.c
> index e9fce81..645d54c 100644
> --- a/hw/xfree86/drivers/modesetting/drmmode_display.c
> +++ b/hw/xfree86/drivers/modesetting/drmmode_display.c
> @@ -1147,6 +1147,9 @@ drmmode_crtc_init(ScrnInfoPtr pScrn, drmmode_ptr drmmode, drmModeResPtr mode_res
>      drmmode_crtc->vblank_pipe = drmmode_crtc_vblank_pipe(num);
>      crtc->driver_private = drmmode_crtc;
>  
> +    /* Hide any cursors which me be active from previous users */

s/me/may/ :)

This looks reasonable:
Reviewed-by: Eric Engestrom <eric.engestrom at imgtec.com>

> +    drmModeSetCursor(drmmode->fd, drmmode_crtc->mode_crtc->crtc_id, 0, 0, 0);
> +
>      /* Mark num'th crtc as in use on this device. */
>      ms_ent->assigned_crtcs |= (1 << num);
>      xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, MS_LOGLEVEL_DEBUG,
> -- 
> 2.9.3