Hi Chris, > > > > I am using a Dell E6410 notebook running Ubuntu. Most of the time I am > > running this notebook in a docking station with closed lid and with an > > external (DVI) monitor attached to the dock. > > > > Running different kernels I see different behaviour regarding the > > display configuration after boot. > > > > Booting a 2.6.32 based kernel the internal display is turned off, the > > external display is turned on and running at it's native resolution of > > 1920x1200. > > This is what I would expect. > > Once upon a time we trusted the lid status and reported the internal > screen as disconnected when the lid was closed. We were beset by bugs > reporting broken lid status and the LVDS not working. So we gave up. > Usually between the BIOS and userspace responding to lid notification > events, the LVDS is turned off when the lid is closed. > > See commit 6e6c822868f113dabe3c33bdd91e883cc28fa11b > Author: Eric Anholt <[email protected]> > Date: Wed Mar 17 13:48:06 2010 -0700 > > drm/i915: Stop trying to use ACPI lid status to determine LVDS connection. > > I've been getting more and more quirk reports about this. It seems > clear at this point that other OSes are not using this for determining > whether the integrated panel should be turned on, and it is not > reliable for doing so. Better to light up an unintended panel than to > not light up the only usable output on the system. > > Signed-off-by: Eric Anholt <[email protected]> > Acked-by: Jesse Barnes <[email protected]> > > You may want to try: > > diff --git a/drivers/gpu/drm/i915/intel_lvds.c > b/drivers/gpu/drm/i915/intel_lvds > index 9795eb5..45b1fe4 100644 > --- a/drivers/gpu/drm/i915/intel_lvds.c > +++ b/drivers/gpu/drm/i915/intel_lvds.c > @@ -474,11 +474,9 @@ intel_lvds_detect(struct drm_connector *connector, bool > for > struct drm_device *dev = connector->dev; > enum drm_connector_status status = connector_status_connected; > > - /* ACPI lid methods were generally unreliable in this generation, so > - * don't even bother. > - */ > - if (IS_GEN2(dev) || IS_GEN3(dev)) > - return connector_status_connected; > + /* ACPI lid methods were generally unreliable, so don't even bother. > */ > + if (INTEL_INFO(dev)->gen >= 5 && !acpi_lid_open()) > + status = connector_status_disconnected; > > return status; > } >
thanks for your response and patch. But this patch did not change anything for me, sorry. The internal display is still turned on when booting with closed lid. I would guess this function is only called for lvds displays while the internal display on the Dell E6410 is an eDP? I have added a printk just before the conditional and I have never seen the output in dmesg. I would not bother too much about using gnome-display-properties (or xrandr) to turn the internal display off once after login. What I think is a little bit annouying is that the internal display is turned back on after each DPMS blanking. Thanks and Regards, Christoph _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
