2nd monitor remains powered down even when active

[Charles van der Walt]

Binary package hint: gnome-control-center

Two monitors are attached, both via DVI-I, the display properties correctly identifies them with their make and model but the 2nd monitor will not power up. Windows can be dragged into the visual area it occupies but they are never visible. Both monitors operate fine under Windows XP-sp3.
Ubuntu 10.04 64 bit.
ATI Radeon x1900 dual head display, Samsung 20" on primary Dell 19" on secondary.
package gnome-control-center, using gnome-display-properties
Expected behavior:- On activating the 2nd monitor it should power up and the image extend onto it.
Actual Behavior:- Workspace area enlarges, windows are able to be dragged into the place the monitor should be but the monitor does not display an image or power up.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: gnome-control-center 1:2.30.0-0ubuntu4
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic x86_64
Architecture: amd64
Date: Thu May 20 22:14:09 2010
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Release Candidate amd64 (20100419)
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: gnome-control-center

[Bryce Harrington (bryce)]

Hi Charles,

Thanks for including the attached files. Could you also include your /var/log/Xorg.0.log (or Xorg.0.log.old) from after reproducing the issue?

Please attach the output of `lspci -vvnn` too.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Charles van der Walt (cvanderwalt)]

here is the /var/log/Xorg.0.log

[Charles van der Walt (cvanderwalt)]

here is the /var/log/Xorg.0.log.old

[Charles van der Walt (cvanderwalt)]

and the requested output from lspci -vvnn
-------------
00:00.0 Host bridge [0600]: Intel Corporation 82975X Memory Controller Hub [8086:277c] (rev c0)
 Subsystem: ASUSTeK Computer Inc. Device [1043:8178]
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
 Latency: 0
 Capabilities: <access denied>
 Kernel modules: i82975x_edac

00:01.0 PCI bridge [0604]: Intel Corporation 82975X PCI Express Root Port [8086:277d] (rev c0)
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 16 bytes
 Bus: primary=00, secondary=05, subordinate=05, sec-latency=0
 I/O behind bridge: 0000c000-0000cfff
 Memory behind bridge: ff900000-ff9fffff
 Prefetchable memory behind bridge: 00000000cff00000-00000000efefffff
 Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
 BridgeCtl: Parity- SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B-
  PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
 Capabilities: <access denied>
 Kernel driver in use: pcieport
 Kernel modules: shpchp

00:1b.0 Audio device [0403]: Intel Corporation N10/ICH 7 Family High Definition Audio Controller [8086:27d8] (rev 01)
 Subsystem: ASUSTeK Computer Inc. Device [1043:81d8]
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 16 bytes
 Interrupt: pin A routed to IRQ 19
 Region 0: Memory at ffafc000 (64-bit, non-prefetchable) [size=16K]
 Capabilities: <access denied>
 Kernel driver in use: HDA Intel
 Kernel modules: snd-hda-intel

00:1c.0 PCI bridge [0604]: Intel Corporation N10/ICH 7 Family PCI Express Port 1 [8086:27d0] (rev 01)
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 16 bytes
 Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
 I/O behind bridge: 00001000-00001fff
 Memory behind bridge: c0000000-c03fffff
 Prefetchable memory behind bridge: 00000000cfe00000-00000000cfefffff
 Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
 BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
  PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
 Capabilities: <access denied>
 Kernel driver in use: pcieport
 Kernel modules: shpchp

00:1c.4 PCI bridge [0604]: Intel Corporation 82801GR/GH/GHM (ICH7 Family) PCI Express Port 5 [8086:27e0] (rev 01)
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 16 bytes
 Bus: primary=00, secondary=03, sub...

[Charles van der Walt (cvanderwalt)]

looking at /var/log/Xorg.0.log
the end of the file seems to indicate a loop as it outputs the data stream about the Dell 19" monitor 8 times then just dies with no log ends message.
In the /var/log/Xorg.0.log.old it is output 9 times but there is a log ends message.

[Bryce Harrington (bryce)]

Thanks for the Xorg log. We also need the lspci -vnvn output attached to this bug as a file

[Charles van der Walt (cvanderwalt)]

attached is the output from the lspci -vvnn as a text file.
Thanks for the help, once you are accustomed to having two monitors one just is not enough....

[Charles van der Walt (cvanderwalt)]

An interesting issue in this case is that on boot both monitors are mirroed together. They remain powered up and mirrored until well after the GRUB boot, the secondary monitor goes into power saving mode as the X server starts up.

[Charles van der Walt (cvanderwalt)]

Is there any reason this bug is still marked as Incomplete? I have submitted all the requested materials. If there is anything further you need please let me know. My research into this matter indicates that multiple people are experiencing the same lack of dual monitor support with various ATI cards.
I have found no way to get both monitors operational.

[Launchpad Janitor (janitor)]

[Expired for xorg-server (Ubuntu) because there has been no activity for 60 days.]