commit: 3a75885848996baab5276ff37ebf7295c3c753f0 From: Dave Airlie <[email protected]> Date: Tue, 25 Sep 2012 16:17:43 +1000 Subject: drm/udl: limit modes to the sku pixel limits.
Otherwise when X starts we commonly get a black screen scanning out nothing, its wierd dpms on/off from userspace brings it back, With this on F18, multi-seat works again with my 1920x1200 monitor which is above the sku limit for the device I have. Cc: [email protected] Reviewed-by: Alex Deucher <[email protected]> Signed-off-by: Dave Airlie <[email protected]> --- drivers/gpu/drm/udl/udl_connector.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c index ba055e9..8d9dc44 100644 --- a/drivers/gpu/drm/udl/udl_connector.c +++ b/drivers/gpu/drm/udl/udl_connector.c @@ -69,6 +69,13 @@ static int udl_get_modes(struct drm_connector *connector) static int udl_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { + struct udl_device *udl = connector->dev->dev_private; + if (!udl->sku_pixel_limit) + return 0; + + if (mode->vdisplay * mode->hdisplay > udl->sku_pixel_limit) + return MODE_VIRTUAL_Y; + return 0; } -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
