Bug 24404

Summary:

TV hotplug interrupt storm

Product:

xorg

Reporter:

Adam Jackson <ajax>

Component:

Driver/intel

Assignee:

ykzhao <yakui.zhao>

Status:

RESOLVED FIXED

QA Contact:

Xorg Project Team <xorg-team>

Severity:

normal

Priority:

medium

CC:

yakui.zhao

Version:

git

Keywords:

NEEDINFO

Hardware:

Other

OS:

All

Whiteboard:

i915 platform:

i915 features:

Attachments:

Description	Flags
disable the TV hotplug in course of TV detection	none

Description Adam Jackson 2009-10-08 12:17:17 UTC

Relevant intel-gfx thread:

http://lists.freedesktop.org/archives/intel-gfx/2009-October/004440.html

In short, at least with 2.6.31 kernels, one can not listen for hotplug interrupts usefully in the X server without also turning them off for TV outputs (for machines with an actual TV connector).  Otherwise the X server gets stuck in a loop constantly reprobing the outputs.

Comment 1 ykzhao 2009-10-09 00:50:32 UTC

Created attachment 30206 [details] [review]
disable the TV hotplug in course of TV detection

Will you please try the debug patch on the Eric's drm-intel-next tree and see whether the issue still exists?

Thanks.

Comment 2 ykzhao 2009-12-03 05:46:05 UTC

The following commit is already shipped in drm-intel-next tree. And this bug can be fixed by the following commit. So this bug will be marked as resolved.

commit 27dfaf4f5825a119305db1bc63bef30ed400e376
Author: Adam Jackson <ajax@redhat.com>
Date:   Fri Nov 20 13:22:44 2009 +0800
 
    drm/i915: disable the interrupt hotplug for integrated TV output

thanks.

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