dual monitors garbled display on 10.10 with Radeon X600

[Bob Paulson]

Since I upgraded from Lucid to Maverick (official release with latest updates), the display with dual non-mirrored monitors does not work. I have a Dell Dimension 9150 with 2 GB RAM, Intel Pentium 4 dual-core 3 GHz CPU and a Radeon X600 graphics chip. This worked fine in Lucid and Windows XP.

My setup: Samsung 17" SyncMaster 171s VGA 60 Hz on left, and 19" Samsung SyncMaster 943 DVI 75 Hz on right, both at 1280 x 1024. The Radeon controller has a VGA and a DVI socket and the two monitors are connected as indicated. Mirrored monitors display fine. But using System -> Monitor Preferences, uncheck "Same image in all monitors", click on Apply, and the right-hand monitor (19" DVI) completely garbles the right half of the display from top to bottom. Also tried 60 Hz, no change.

I ran Update Manager to get the latest official updates, googled and tried various suggestions, such as "bleeding.edge" xorg stuff, but it was no help. Not sure if this is supposed to have been resolved or not. So I downgraded to 10.4 where it works fine.

Would be great to get an answer as to how to fix this problem - thanks.

- Bob Paulson
---
Architecture: i386
CurrentDmesg:
 [ 20.158526] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
 [ 20.158532] e1000e 0000:04:00.0: eth0: 10/100 speed: disabling TSO
 [ 20.158758] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
 [ 27.951716] EXT4-fs (sda6): re-mounted. Opts: errors=remount-ro,commit=0
 [ 31.156016] eth0: no IPv6 routers present
DRM.card0.VGA.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1280x1024 1280x1024 1152x864 1024x768 1024x768 1024x768 832x624 800x600 800x600 800x600 800x600 640x480 640x480 640x480 640x480 640x480 720x400
 edid-base64: AP///////wBMLRsANzFIRwUNAQMPIhuM6m+LolpNlCQaUVa/74CBgGFARUAxQAEBAQEBAQEBMCoAmFEAKkAwcBMAUg4RAAAeAAAA/QA4TB5RDgAKICAgICAgAAAA/ABTeW5jTWFzdGVyCiAgAAAA/wBISkRXMTA5MDA2CiAgAG0=
DistroRelease: Ubuntu 10.10
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release i386 (20100816.1)
MachineType: Dell Inc. Dell DXP051
Package: xserver-xorg-video-ati 1:6.13.1-1ubuntu5
PackageArchitecture: i386
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-25-generic root=UUID=62dcabc5-6150-4217-818b-9e225abe2819 ro splash quiet splash
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.35-25.44-generic 2.6.35.10
Tags: maverick maverick
Uname: Linux 2.6.35-25-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 10/28/2005
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A02
dmi.board.name: 0YC523
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 7
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA02:bd10/28/2005:svnDellInc.:pnDellDXP051:pvr:rvnDellInc.:rn0YC523:rvr:cvnDellInc.:ct7:cvr:
dmi.product.name: Dell DXP051
dmi.sys.vendor: Dell Inc.
glxinfo: Error: [Errno 2] No such file or directory
system:
 distro: Ubuntu
 codename: maverick
 architecture: i686
 kernel: 2.6.35-25-generic

---
Architecture: i386
DistUpgraded: Fresh install
DistroCodename: natty
DistroRelease: Ubuntu 11.04
DistroVariant: ubuntu
LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
Package: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
PackageArchitecture: i386
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Tags: natty ubuntu
Uname: Linux 2.6.38-8-generic i686
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7
---
Architecture: i386
DistUpgraded: Fresh install
DistroCodename: natty
DistroRelease: Ubuntu 11.04
DistroVariant: ubuntu
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
Package: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
PackageArchitecture: i386
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Tags: natty ubuntu
Uname: Linux 2.6.38-8-generic i686
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7

[kurt belgrave (trinikrono)]

Bob
Can you go back in maverick and run for me
apport-collect 706890
So it can help diagnose the issue you are having
Cheers

[kurt belgrave (trinikrono)]

Changing to the correct Package, You can learn more about finding the right package at https://wiki.ubuntu.com/Bugs/FindRightPackage .and https://wiki.ubuntu.com/X/Triaging

[kurt belgrave (trinikrono)]

Lastly attach a screen shot or picture from a cam and attach it to this report please.

[Bob Paulson (bpaulson)]

apport information

[Bob Paulson (bpaulson)]

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[Bob Paulson (bpaulson)]

On 02/12/2011 08:17 PM, kurt belgrave wrote:
> Can you go back in maverick and run for me
> apport-collect 706890
> So it can help diagnose the issue you are having
Ok, Kurt, I guess all that stuff got automagically entered into the
thread. I'll get to your other requests soon.

Thanks!

- Bob

[Bob Paulson (bpaulson)]

On 02/12/2011 08:21 PM, kurt belgrave wrote:
> Lastly attach a screen shot or picture from a cam and attach it to this
> report please.
Here you go. I've since determined that the problem only occurs when I
have set Appearances->Visual Effects to Normal (which was the default).
If I set it to None, then the problem doesn't happen. Attached is the
screen shot.

- Bob

[samo_nz (samo-nz)]

I have the same set up with the same symptoms, however there is a workaround - Bob, when you enable dual monitors log out and back in again and it should be ok, you will need to add a logout button to the panel away from the garbled mess:)

This works but if enabling desktop effects under appearance, the display gets messed up as described above and a log out and back in again somehow reverts it back to "no effects"

[bugbot (bugbot)]

Hey Bob,

Hi, have you had a chance to test if this bug is still present in natty?

If it does (and if you're the original reporter), please boot into natty
and run the command:

  apport-collect <bug-number>

which will update the bug with fresh logs and tag the bug as affecting
natty. (It is best to run this right after reproducing the problem.)

[Bob Paulson (bpaulson)]

apport information

[Bob Paulson (bpaulson)]

Hi bugbot,

I recently installed Windows 7 on the affected machine, but I ran natty on it just now from the live USB without installing it. When I switched to dual non-mirrored monitors, the display was garbled on both. I don't know if this is a valid test running from the live USB, but I did the apport-collect thing anyway.

Hope this helps, Bob

[Bob Paulson (bpaulson)]

apport information

[Bob Paulson (bpaulson)]

I did a clean install of natty on the affected machine. As with the live CD/USB, it has the same problem - both monitors are completely garbled when I enable dual non-mirrored monitors. I ran apport-collect 706890 (again, I have no idea why it only lists Dependencies.txt in the preceding message, it told me on the computer that it was sending a whole list of stuff as it did last February under maverick).

So I logged out and logged in again with Ubuntu Classic (no effects) and it works ok.

- Bob

[Launchpad Janitor (janitor)]

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