[Bug 31972] New: 2.6.38.1: radeon hd 6870: kms, hdmi, signal is correct only for 1-2 seconds

[Bug 31972] New: 2.6.38.1: radeon hd 6870: kms, hdmi, signal is correct only for 1-2 seconds

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=31972

           Summary: 2.6.38.1: radeon hd 6870: kms, hdmi, signal is correct
                    only for 1-2 seconds
           Product: Drivers
           Version: 2.5
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
        AssignedTo: drivers_video-dri@kernel-bugs.osdl.org
        ReportedBy: arekm@maven.pl
        Regression: No


Created an attachment (id=52182)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=52182)
dmesg with messages

I'm using 2.6.38.1 with radeon hd 6870
(http://www.gigabyte.com/products/product-page.aspx?pid=3615#ov) connected only
to toshiba regza tv with HDMI connector. Nothing else is connected.

After modprobe radeon KMS kicks in, resolution is changed and everything looks
fine for 1-2 seconds. Then signal is lost according to tv and there are tons
of:
"[drm:atom_dp_get_link_status] *ERROR* displayport link status failed", some
kworker eats 90% of cpu and fans go up.

dmesg attached.

-- 
Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are watching the assignee of the bug.

------------------------------------------------------------------------------
Enable your software for Intel(R) Active Management Technology to meet the
growing manageability and security demands of your customers. Businesses
are taking advantage of Intel(R) vPro (TM) technology - will your software 
be a part of the solution? Download the Intel(R) Manageability Checker 
today! http://p.sf.net/sfu/intel-dev2devmar
--
_______________________________________________
Dri-devel mailing list
Dri-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dri-devel

[Bug 31972] 2.6.38.1: radeon hd 6870: kms, hdmi, signal is correct only for 1-2 seconds

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=31972


Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alexdeucher@gmail.com




--- Comment #1 from Alex Deucher <alexdeucher@gmail.com>  2011-03-27 20:38:53 ---
Is this a regression?  If so what version worked previously?  It looks like one
of the hotplug interrupt is firing repeatedly (maybe a loose/bad cable?).  Can
you attach the dmesg output with drm debug enabled (load drm.ko with debug=1)?

-- 
Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are watching the assignee of the bug.

------------------------------------------------------------------------------
Enable your software for Intel(R) Active Management Technology to meet the
growing manageability and security demands of your customers. Businesses
are taking advantage of Intel(R) vPro (TM) technology - will your software 
be a part of the solution? Download the Intel(R) Manageability Checker 
today! http://p.sf.net/sfu/intel-dev2devmar
--
_______________________________________________
Dri-devel mailing list
Dri-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dri-devel

[Bug 31972] 2.6.38.1: radeon hd 6870: kms, hdmi, signal is correct only for 1-2 seconds

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=31972





--- Comment #2 from Arkadiusz Miskiewicz <arekm@maven.pl>  2011-03-27 21:00:41 ---
Created an attachment (id=52212)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=52212)
dmesg with drm debug=1

Not a regression since 2.6.37 didn't support this card at all. 

Bad cable... I forgot to mention one important thing. Video card is not
connected directly to toshiba tv but through pioneer vsx-920-k amplifier. I
just did a test and connected directly to tv. The problem is gone.

So pioneer could be suspected for dirty games but there is no problem with
windows working in the same setup (I use 1920x1080 in windows; some gpu hungry
games like call of duty 4 etc work fine in this setup), so there is a chance
for a radeon drm bug.

dmesg with debug attached.

-- 
Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are watching the assignee of the bug.

------------------------------------------------------------------------------
Enable your software for Intel(R) Active Management Technology to meet the
growing manageability and security demands of your customers. Businesses
are taking advantage of Intel(R) vPro (TM) technology - will your software 
be a part of the solution? Download the Intel(R) Manageability Checker 
today! http://p.sf.net/sfu/intel-dev2devmar
--
_______________________________________________
Dri-devel mailing list
Dri-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dri-devel

[Bug 31972] 2.6.38.1: radeon hd 6870: kms, hdmi, signal is correct only for 1-2 seconds

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=31972





--- Comment #3 from Arkadiusz Miskiewicz <arekm@maven.pl>  2011-03-27 21:04:12 ---
gdm started nicely when connected directly to TV. Then I changed cable to go
through pioneer and... gdm still works fine and no bad things in dmesg.

ps. GPU is becoming very hot when "displayport link status failed" happens.

-- 
Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are watching the assignee of the bug.

------------------------------------------------------------------------------
Enable your software for Intel(R) Active Management Technology to meet the
growing manageability and security demands of your customers. Businesses
are taking advantage of Intel(R) vPro (TM) technology - will your software 
be a part of the solution? Download the Intel(R) Manageability Checker 
today! http://p.sf.net/sfu/intel-dev2devmar
--
_______________________________________________
Dri-devel mailing list
Dri-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dri-devel

[Bug 31972] 2.6.38.1: radeon hd 6870: kms, hdmi, signal is correct only for 1-2 seconds

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=31972


Alan <alan@lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |alan@lxorguk.ukuu.org.uk
         Resolution|                            |OBSOLETE




--- Comment #4 from Alan <alan@lxorguk.ukuu.org.uk>  2012-08-20 15:18:17 ---
If this is still seen with modern kernels please reopen/update thanks

-- 
Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are watching the assignee of the bug.