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  • #155

Closed
Open
Created Sep 01, 2010 by Bugzilla Migration User@bugzilla-migration

radeon/KMS: Screen hotplugging does not work

Submitted by Daniel Klaffenbach

Assigned to Default DRI bug account

Link to original bug (#29941)

Description

I noticed that in recent kernel versions the runtime detection of newly added monitors does not work properly.

When I plug in my TV (DVI2HDMI) after booting I cannot enable it. xrandr correctly shows a new screen and I can even enable the output, but the TV screen stays black. Restarting X does not help.

The driver also seems to recognize the port status after plugging it in (/sys/class/drm/card0-DVI-I-2/status) changes from "disconnected" to "connected".

When I plug the HDMI cable in before booting my computer the TV works just fine.

GFX: Radeon HD 3870
Linux: 2.6-git (issue appeared in 2.6.35) with KMS
Mesa: git
libdrm: git
xf86-video-ati: git

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