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Date: Sun, 11 Mar 2012 07:20:47 +0000 From: Dave Airlie <airlied@...il.com> To: Carsten Emde <C.Emde@...dl.org> Cc: David Airlie <airlied@...ux.ie>, Thomas Gleixner <tglx@...utronix.de>, DRI <dri-devel@...ts.freedesktop.org>, LKML <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 2/3] drivers-gpu-drm-add-disable-enable-connector.patch On Sat, Mar 10, 2012 at 8:20 PM, Carsten Emde <C.Emde@...dl.org> wrote: > Some recent integrated graphics chipset, notably Intel's "Pineview", also > provide on-chip LVDS support. As an extra service, the LVDS interface supplies > EDID data - irrespective of whether an LVDS panel is connected or not. The > drm_mode_getresources() function, therefore, causes Xorg to always include > the LVDS panel into the display and initialize a separate screen for it. e.g. > (II) intel(0): Output LVDS1 connected > (II) intel(0): Output VGA1 connected > (II) intel(0): Using spanning desktop for initial modes > (II) intel(0): Output LVDS1 using initial mode 1024x768 +0+0 > (II) intel(0): Output VGA1 using initial mode 1280x1024 +1024+0 > which is not what you want, if the only connected screen is a VGA monitor. > One would assume that the BIOS settings of such systems would allow to > separately enable or disable LVDS support; unfortunately, systems have been > found in the wild that do not provide this feature. So video=LVDS-1:d doesn't work for you? Dave. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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