linux-kernel - [PATCH v2 2/2] drm/qxl: kick out vgacon

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Date:   Thu, 21 Feb 2019 12:35:34 +0100
From:   Gerd Hoffmann <kraxel@...hat.com>
To:     dri-devel@...ts.freedesktop.org
Cc:     daniel@...ll.ch, Gerd Hoffmann <kraxel@...hat.com>,
        Dave Airlie <airlied@...hat.com>,
        David Airlie <airlied@...ux.ie>,
        virtualization@...ts.linux-foundation.org (open list:DRM DRIVER FOR QXL
        VIRTUAL GPU),
        spice-devel@...ts.freedesktop.org (open list:DRM DRIVER FOR QXL VIRTUAL
        GPU), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v2 2/2] drm/qxl: kick out vgacon

Problem:  qxl switches from native mode back into vga compatibility mode
when it notices someone is accessing vga registers.  And vgacon does
exactly that before fbcon takes over.  So make sure we kick out vgacon
early enough that it wouldn't disturb us.

Signed-off-by: Gerd Hoffmann <kraxel@...hat.com>
---
 drivers/gpu/drm/qxl/qxl_drv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index bb81e310eb..08446561aa 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -95,6 +95,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		goto modeset_cleanup;
 
 	drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "qxl");
+	drm_fb_helper_kick_out_vgacon();
 	drm_fbdev_generic_setup(&qdev->ddev, 32);
 	return 0;
 
-- 
2.9.3