From: Andrew Morton <akpm@linux-foundation.org>
To: linux-acpi@vger.kernel.org, rui.zhang@intel.com
Cc: bugme-daemon@bugzilla.kernel.org, melchior+kernel@cmu.edu
Subject: Re: [Bugme-new] [Bug 12904] New: hard lockup on Sony Vaio SR when connecting some external monitors
Date: Fri, 20 Mar 2009 14:09:45 -0700 [thread overview]
Message-ID: <20090320140945.1e00aad1.akpm@linux-foundation.org> (raw)
In-Reply-To: <bug-12904-10286@http.bugzilla.kernel.org/>
On Fri, 20 Mar 2009 11:43:19 -0700 (PDT) bugme-daemon@bugzilla.kernel.org wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=12904
>
> Summary: hard lockup on Sony Vaio SR when connecting some
> external monitors
> Product: Platform Specific/Hardware
> Version: 2.5
> KernelVersion: 2.6.29-rc6
> Platform: All
> OS/Version: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: x86-64
> AssignedTo: platform_x86_64@kernel-bugs.osdl.org
> ReportedBy: melchior+kernel@cmu.edu
>
>
> Latest working kernel version: none
> Earliest failing kernel version: 2.6.26
> Distribution: Debian (unstable)
> Hardware Environment: Sony Vaio SR290 with Mobile 4 Series Chipset Integrated
> Graphics (PCI ids: 8086:2a42 and 8086:2a43)
> Software Environment: 64-bit Debian unstable
> Problem Description:
>
> This laptop locks up when certain external display devices are attached after
> boot. Only overhead projectors seem to cause the lockup. I can attach
> external LCD monitors at any time and use (e.g.) xrandr without problem.
> Likewise, if the projector is attached before turning the laptop on, the
> display will be mirrored and it will work fine. In this case, unplugging the
> projector will cause the lockup.
>
> Steps to reproduce:
>
> This problem occurs in X or at the console, with or without the i915 module
> loaded. It occurs at the console with the framebuffer enabled or with
> vga=normal. In the latter case, the cursor continues to blink, but the system
> doesn't respond to keystrokes. Alt+SysRq doesn't work in any of these cases.
>
Gee, I'm struggling to work out which kernel subsystem might be involved
here. If anything I suppose it is ACPI.
Help?
parent reply other threads:[~2009-03-20 21:16 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <bug-12904-10286@http.bugzilla.kernel.org/>]
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