[Bug 71531] New: eDP disabled forever if lid closed at boot time
bugzilla-daemon at bugzilla.kernel.org
bugzilla-daemon at bugzilla.kernel.org
Wed Mar 5 02:33:26 PST 2014
https://bugzilla.kernel.org/show_bug.cgi?id=71531
Bug ID: 71531
Summary: eDP disabled forever if lid closed at boot time
Product: Drivers
Version: 2.5
Kernel Version: 3.12.1
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - Intel)
Assignee: intel-gfx-bugs at lists.freedesktop.org
Reporter: matthieu.imbert at ens-lyon.fr
CC: intel-gfx-bugs at lists.freedesktop.org
Regression: No
On a dell e4310 laptop with arrandale dual-core i5-540m integrated graphics,
driver i915: If the laptop is booted with its lid closed, the eDP is not
initialized at all and is lost forever.
dmesg says: [drm] failed to retrieve link info, disabling eDP
Booting with lid closed is a common situation for anyone using a docking
station: A user puts the laptop closed on the docking station, boots (lid
closed), using external screen. Later, the user needs to move and then undock
the laptop, opens the lid and expects to have the eDP working (X + some desktop
env correctly handle these situations).
This bug occurs with i915 started with option modeset=1 (KMS enabled).
I use the current default debian testing kernel. If needed I can recompile a
specific kernel (possibly patched) for testing.
Feel free to ask for any needed details (logs, anything..)
Matthieu
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