[Bug 29941] New: radeon/KMS: Screen hotplugging does not work any more

[Bug 29941] New: radeon/KMS: Screen hotplugging does not work any more

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=29941

           Summary: radeon/KMS: Screen hotplugging does not work any more
           Product: DRI
           Version: DRI CVS
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: direx@betriebsdirektor.de


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

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 29941] radeon/KMS: Screen hotplugging does not work any more

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=29941

--- Comment #1 from Alex Deucher <agd5f@yahoo.com> 2010-09-01 09:36:48 PDT ---
What was the last kernel version where this worked?  Is the issue still present
in 2.6.36rc3?  Can you attach your dmesg output and xorg log?

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 29941] radeon/KMS: Screen hotplugging does not work any more

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=29941

--- Comment #2 from Daniel <direx@betriebsdirektor.de> 2010-09-01 10:37:14 PDT ---
Created an attachment (id=38360)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=38360)
Xorg log file

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 29941] radeon/KMS: Screen hotplugging does not work any more

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=29941

--- Comment #3 from Daniel <direx@betriebsdirektor.de> 2010-09-01 10:37:52 PDT ---
Created an attachment (id=38361)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=38361)
dmesg from linux 2.6.36-rc3 with drm.debug

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 29941] radeon/KMS: Screen hotplugging does not work any more

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=29941

--- Comment #4 from Daniel <direx@betriebsdirektor.de> 2010-09-01 10:39:48 PDT ---
(In reply to comment #1)
> What was the last kernel version where this worked?  Is the issue still present
> in 2.6.36rc3?
I remember that this worked just fine in 2.6.34. The problem was introduced in
an early RC of 2.6.35 and is still present in 2.6.36-rc3.

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 29941] radeon/KMS: Screen hotplugging does not work any more

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=29941

--- Comment #5 from Alex Deucher <agd5f@yahoo.com> 2010-09-01 11:45:59 PDT ---
Any chance you could bisect it?

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 29941] radeon/KMS: Screen hotplugging does not work

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=29941

Daniel <direx@betriebsdirektor.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|radeon/KMS: Screen          |radeon/KMS: Screen
                   |hotplugging does not work   |hotplugging does not work
                   |any more                    |

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 29941] radeon/KMS: Screen hotplugging does not work

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=29941

--- Comment #6 from Daniel <direx@betriebsdirektor.de> 2010-09-02 11:37:25 PDT ---
(In reply to comment #5)
> Any chance you could bisect it?
I just experiented a bit and it didn't work with 2.6.34.6 neither with
2.6.33.7. This is why I assume that screen hotplugging never worked with KMS on
my R600 - I must have confused it with fglrx which I was also using until now.

And I forgot to say something about the logs I did attach yesterday: the logs
are from a system which booted without a second screen attached. After the
XSession loaded I plugged in the monitor and enabled it with xrandr.

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 29941] radeon/KMS: Screen hotplugging does not work

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 804 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=29941

Martin Peres <martin.peres@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #7 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/155.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 2351 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel