Bug 24404 - TV hotplug interrupt storm
Summary: TV hotplug interrupt storm
Status: RESOLVED FIXED
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/intel (show other bugs)
Version: git
Hardware: Other All
: medium normal
Assignee: ykzhao
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords: NEEDINFO
Depends on:
Blocks:
 
Reported: 2009-10-08 12:17 UTC by Adam Jackson
Modified: 2009-12-03 05:46 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments
disable the TV hotplug in course of TV detection (1.37 KB, patch)
2009-10-09 00:50 UTC, ykzhao 		no flags Details | Splinter Review
View All

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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