Bug 39161

Summary: hard freeze on Dell E6410 when X starts with HDMI2/DVI connected
Product: DRI Reporter: Brice Goglin <brice.goglin>
Component: DRM/IntelAssignee: Chris Wilson <chris>
Status: CLOSED DUPLICATE QA Contact:
Severity: major    
Priority: medium CC: ben, chris, jbarnes
Version: XOrg git   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
dmesg when starting X with HDMI2 unplugged
none
Xorg log when starting X with HDMI2 unplugged none

Description Brice Goglin 2011-07-12 01:07:03 UTC 
Created attachment 48994 [details]
dmesg when starting X with HDMI2 unplugged

Initially reported at
  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=633527

Since I upgraded my Dell Latitude E6410 laptop from Debian's 2.6.38-5 to 2.6.39-2 (tried 3.0.0-rc6 too), the machine hard freezes (even sysrq doesn't seem to work) when X starts with HDMI2 plugged.

When KMS starts, both eDP and HDMI2 (DVI connector on the dock station)
display the boot as usual. Later, when gdm starts, both screens blank
and the machine freezes.

If I unplug HDMI2/DVI before X starts, things work fine. I can even replug
HDMI2/DVI later, the external display will be automatically enabled (and
I can play with xrandr to change its resolution).

00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller])
	Subsystem: Dell Device [1028:040a]
Comment 1 Brice Goglin 2011-07-12 01:07:48 UTC 
Created attachment 48995 [details]
Xorg log when starting X with HDMI2 unplugged
Comment 2 Chris Wilson 2011-07-12 01:38:02 UTC 
Marking as dup for the time being; lets see how things progress.

*** This bug has been marked as a duplicate of bug 39108 ***

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