If I use Gnome with NO effects, it all works very nicely. I guess there
are still bugs in the Nouveau driver on older chipsets like the N34.
Perhaps 3.7.x will be better? 

Regards,
Alex

On Mon, 2012-10-22 at 13:53 +0000, Bengt Sviu wrote:
> I have this old Lenovo laptop T61. The graphics have been dysfunctional 
> during the last 14 days of updating quantal, practically continuously, and a 
> few times before. Meaning big squares on the screen, no or few clicks 
> registred, HUD not showing and such. Also some high processor use for 
> Cheese. So I figured the driver was not working and changed to nvidias 
> driver. problems gone.
> 
> -----Opprinnelig melding----- 
> From: Alex Buell
> Sent: Monday, October 22, 2012 3:17 PM
> To: <email address hidden>
> Subject: Re: [Bug 1033533] Re: Xorg crashed with SIGABRT: exaMemcpyBox 
> withsrc=0x0 on nouveau with SW rendering
> 
> This happens on logging in with Gnome (full effects) and Ubuntu and
> using for a few minutes, then crashes.
> 
> Regards
> Alex
> 
> On Mon, 2012-10-22 at 12:43 +0000, Maarten Lankhorst wrote:
> > How can I reproduce this easily?
> >
> > ** Changed in: xserver-xorg-video-nouveau (Ubuntu Quantal)
> >        Status: Confirmed => Incomplete
> >
> > -- 
> > You received this bug notification because you are subscribed to a
> > duplicate bug report (1045115).
> > https://bugs.launchpad.net/bugs/1033533
> >
> > Title:
> >   Xorg crashed with SIGABRT: exaMemcpyBox with src=0x0 on nouveau with
> >   SW rendering
> >
> > Status in “xserver-xorg-video-nouveau” package in Ubuntu:
> >   Confirmed
> > Status in “xserver-xorg-video-nouveau” source package in Quantal:
> >   Incomplete
> >
> > Bug description:
> >   Crash doing memcpy in EXA on nouveau, with software rendering
> >   activated.
> >
> >   #8  <signal handler called>
> >   No symbol table info available.
> >   #9  __memcpy_sse2 () at ../sysdeps/x86_64/multiarch/../memcpy.S:72
> >   No locals.
> >   #10 0x00007f570e63684e in memcpy (__len=23, __src=0x0, 
> > __dest=0x7f5713877100) at /usr/include/x86_64-linux-gnu/bits/string3.h:52
> >   No locals.
> >   #11 exaMemcpyBox (pbox=pbox@entry=0x7fffef000de0, src=0x0, src_pitch=64, 
> > dst=0x7f5713877100 "", dst_pitch=24, pPixmap=<error reading variable: 
> > Unhandled dwarf expression opcode 0xfa>) at 
> > ../../exa/exa_migration_classic.c:59
> >           i = 16
> >           cpp = <optimized out>
> >           bytes = 23
> >   #12 0x00007f570e636d03 in exaCopyDirty 
> > (migrate=migrate@entry=0x7fffef000e40, pValidDst=0x7f5713dc3e40, 
> > pValidSrc=0x7f5713dc3e50, transfer=0x7f570f28b7f0 
> > <nouveau_exa_download_from_screen>, fallback_index=fallback_index@entry=1, 
> > sync=0x7f570e635780 <exaWaitSync>) at 
> > ../../exa/exa_migration_classic.c:240
> >           pPixmap = 0x7f5713dc3da0
> >           pExaPixmap = 0x7f5713dc3e00
> >           damage = <optimized out>
> >           CopyReg = {extents = {x1 = 0, y1 = 0, x2 = 23, y2 = 16}, data = 
> > 0x0}
> >           save_use_gpu_copy = 1
> >           save_pitch = 64
> >           pBox = 0x7fffef000de0
> >           nbox = 1
> >           access_prepared = 1
> >           need_sync = 0
> >   #13 0x00007f570e636f32 in exaCopyDirtyToSys 
> > (migrate=migrate@entry=0x7fffef000e40) at 
> > ../../exa/exa_migration_classic.c:285
> >           pPixmap = <optimized out>
> >           pExaScr = 0x7f5713877100
> >           pExaPixmap = 0x0
> >   #14 0x00007f570e63951a in exaPrepareAccessReg_mixed 
> > (pPixmap=0x7f5713dc3da0, index=<optimized out>, pReg=0x0) at 
> > ../../exa/exa_migration_mixed.c:254
> >           as_dst = 1
> >           pixmaps = {{as_dst = 0, as_src = 1, pPix = 0x7f5713dc3da0, pReg 
> > = 0x0}}
> >           pExaPixmap = 0x7f5713dc3e00
> >           has_gpu_copy = <optimized out>
> >           success = <optimized out>
> >
> >   [Original Report]
> >   The crash report started immediately after login.
> >
> >   ProblemType: Crash
> >   DistroRelease: Ubuntu 12.10
> >   Package: xserver-xorg-core 2:1.12.99.902-0ubuntu1
> >   ProcVersionSignature: Ubuntu 3.5.0-8.8-generic 3.5.0
> >   Uname: Linux 3.5.0-8-generic x86_64
> >   .tmp.unity.support.test.0:
> >
> >   ApportVersion: 2.4-0ubuntu6
> >   Architecture: amd64
> >   CompizPlugins: No value set for 
> > `/apps/compiz-1/general/screen0/options/active_plugins'
> >   CompositorRunning: None
> >   CrashCounter: 1
> >   Date: Sun Aug  5 14:46:44 2012
> >   DistUpgraded: Fresh install
> >   DistroCodename: quantal
> >   DistroVariant: ubuntu
> >   DkmsStatus:
> >    virtualbox, 4.1.18, 3.5.0-6-generic, x86_64: installed
> >    virtualbox, 4.1.18, 3.5.0-8-generic, x86_64: installed
> >   ExecutablePath: /usr/bin/Xorg
> >   ExtraDebuggingInterest: Yes, if not too technical
> >   GraphicsCard:
> >    NVIDIA Corporation C61 [GeForce 6100 nForce 400] [10de:03d2] (rev a2) 
> > (prog-if 00 [VGA controller])
> >      Subsystem: NVIDIA Corporation Device [10de:cb84]
> >   InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 
> > (20120519)
> >   Lsusb:
> >    Bus 001 Device 002: ID 18ec:3399 Arkmicro Technologies Inc.
> >    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> >    Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> >   ProcCmdline: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp 
> > vt7 -novtswitch -background none
> >   ProcEnviron:
> >
> >   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-8-generic 
> > root=UUID=a80eff25-65c3-4db0-adad-31d8ea95823b ro quiet splash 
> > vt.handoff=7
> >   Renderer: Software
> >   Signal: 6
> >   SourcePackage: xorg-server
> >   StacktraceTop:
> >    ?? () from /lib/x86_64-linux-gnu/libc.so.6
> >    ?? () from /usr/lib/xorg/modules/libexa.so
> >    ?? () from /usr/lib/xorg/modules/libexa.so
> >    ?? () from /usr/lib/xorg/modules/libexa.so
> >    ?? () from /usr/lib/xorg/modules/libexa.so
> >   Title: Xorg crashed with SIGABRT
> >   UpgradeStatus: No upgrade log present (probably fresh install)
> >   UserGroups:
> >
> >   dmi.bios.date: 09/22/2006
> >   dmi.bios.vendor: Phoenix Technologies, LTD
> >   dmi.bios.version: 6.00 PG
> >   dmi.board.name: NF-MCP61
> >   dmi.chassis.type: 3
> >   dmi.modalias: 
> > dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd09/22/2006:svn:pn:pvr:rvn:rnNF-MCP61:rvr:cvn:ct3:cvr:
> >   version.compiz: compiz 1:0.9.8+bzr3249-0ubuntu2
> >   version.ia32-libs: ia32-libs N/A
> >   version.libdrm2: libdrm2 2.4.37-0ubuntu2
> >   version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.4-1ubuntu1
> >   version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
> >   version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.4-1ubuntu1
> >   version.xserver-xorg-core: xserver-xorg-core 2:1.12.99.902-0ubuntu1
> >   version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 
> > 1:2.7.0-2~ubuntu1
> >   version.xserver-xorg-video-ati: xserver-xorg-video-ati 
> > 1:6.99.99~git20120713.6ef1ad6a-0ubuntu1
> >   version.xserver-xorg-video-intel: xserver-xorg-video-intel 
> > 2:2.20.2-1ubuntu1
> >   version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
> > 1:1.0.1-4~ubuntu1
> >
> > To manage notifications about this bug go to:
> > https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1033533/+subscriptions
> 
> 
> -- 
> Tactical Nuclear Kittens
> 
> -- 
> You received this bug notification because you are subscribed to a
> duplicate bug report (1061708).
> https://bugs.launchpad.net/bugs/1033533
> 
> Title:
>   Xorg crashed with SIGABRT: exaMemcpyBox with src=0x0 on nouveau with
>   SW rendering
> 
> Status in “xserver-xorg-video-nouveau” package in Ubuntu:
>   Confirmed
> Status in “xserver-xorg-video-nouveau” source package in Quantal:
>   Incomplete
> 
> Bug description:
>   Crash doing memcpy in EXA on nouveau, with software rendering
>   activated.
> 
>   #8  <signal handler called>
>   No symbol table info available.
>   #9  __memcpy_sse2 () at ../sysdeps/x86_64/multiarch/../memcpy.S:72
>   No locals.
>   #10 0x00007f570e63684e in memcpy (__len=23, __src=0x0, 
> __dest=0x7f5713877100) at /usr/include/x86_64-linux-gnu/bits/string3.h:52
>   No locals.
>   #11 exaMemcpyBox (pbox=pbox@entry=0x7fffef000de0, src=0x0, src_pitch=64, 
> dst=0x7f5713877100 "", dst_pitch=24, pPixmap=<error reading variable: 
> Unhandled dwarf expression opcode 0xfa>) at 
> ../../exa/exa_migration_classic.c:59
>           i = 16
>           cpp = <optimized out>
>           bytes = 23
>   #12 0x00007f570e636d03 in exaCopyDirty 
> (migrate=migrate@entry=0x7fffef000e40, pValidDst=0x7f5713dc3e40, 
> pValidSrc=0x7f5713dc3e50, transfer=0x7f570f28b7f0 
> <nouveau_exa_download_from_screen>, fallback_index=fallback_index@entry=1, 
> sync=0x7f570e635780 <exaWaitSync>) at ../../exa/exa_migration_classic.c:240
>           pPixmap = 0x7f5713dc3da0
>           pExaPixmap = 0x7f5713dc3e00
>           damage = <optimized out>
>           CopyReg = {extents = {x1 = 0, y1 = 0, x2 = 23, y2 = 16}, data = 
> 0x0}
>           save_use_gpu_copy = 1
>           save_pitch = 64
>           pBox = 0x7fffef000de0
>           nbox = 1
>           access_prepared = 1
>           need_sync = 0
>   #13 0x00007f570e636f32 in exaCopyDirtyToSys 
> (migrate=migrate@entry=0x7fffef000e40) at 
> ../../exa/exa_migration_classic.c:285
>           pPixmap = <optimized out>
>           pExaScr = 0x7f5713877100
>           pExaPixmap = 0x0
>   #14 0x00007f570e63951a in exaPrepareAccessReg_mixed 
> (pPixmap=0x7f5713dc3da0, index=<optimized out>, pReg=0x0) at 
> ../../exa/exa_migration_mixed.c:254
>           as_dst = 1
>           pixmaps = {{as_dst = 0, as_src = 1, pPix = 0x7f5713dc3da0, pReg = 
> 0x0}}
>           pExaPixmap = 0x7f5713dc3e00
>           has_gpu_copy = <optimized out>
>           success = <optimized out>
> 
>   [Original Report]
>   The crash report started immediately after login.
> 
>   ProblemType: Crash
>   DistroRelease: Ubuntu 12.10
>   Package: xserver-xorg-core 2:1.12.99.902-0ubuntu1
>   ProcVersionSignature: Ubuntu 3.5.0-8.8-generic 3.5.0
>   Uname: Linux 3.5.0-8-generic x86_64
>   .tmp.unity.support.test.0:
> 
>   ApportVersion: 2.4-0ubuntu6
>   Architecture: amd64
>   CompizPlugins: No value set for 
> `/apps/compiz-1/general/screen0/options/active_plugins'
>   CompositorRunning: None
>   CrashCounter: 1
>   Date: Sun Aug  5 14:46:44 2012
>   DistUpgraded: Fresh install
>   DistroCodename: quantal
>   DistroVariant: ubuntu
>   DkmsStatus:
>    virtualbox, 4.1.18, 3.5.0-6-generic, x86_64: installed
>    virtualbox, 4.1.18, 3.5.0-8-generic, x86_64: installed
>   ExecutablePath: /usr/bin/Xorg
>   ExtraDebuggingInterest: Yes, if not too technical
>   GraphicsCard:
>    NVIDIA Corporation C61 [GeForce 6100 nForce 400] [10de:03d2] (rev a2) 
> (prog-if 00 [VGA controller])
>      Subsystem: NVIDIA Corporation Device [10de:cb84]
>   InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120519)
>   Lsusb:
>    Bus 001 Device 002: ID 18ec:3399 Arkmicro Technologies Inc.
>    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>    Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>   ProcCmdline: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp 
> vt7 -novtswitch -background none
>   ProcEnviron:
> 
>   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-8-generic 
> root=UUID=a80eff25-65c3-4db0-adad-31d8ea95823b ro quiet splash vt.handoff=7
>   Renderer: Software
>   Signal: 6
>   SourcePackage: xorg-server
>   StacktraceTop:
>    ?? () from /lib/x86_64-linux-gnu/libc.so.6
>    ?? () from /usr/lib/xorg/modules/libexa.so
>    ?? () from /usr/lib/xorg/modules/libexa.so
>    ?? () from /usr/lib/xorg/modules/libexa.so
>    ?? () from /usr/lib/xorg/modules/libexa.so
>   Title: Xorg crashed with SIGABRT
>   UpgradeStatus: No upgrade log present (probably fresh install)
>   UserGroups:
> 
>   dmi.bios.date: 09/22/2006
>   dmi.bios.vendor: Phoenix Technologies, LTD
>   dmi.bios.version: 6.00 PG
>   dmi.board.name: NF-MCP61
>   dmi.chassis.type: 3
>   dmi.modalias: 
> dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd09/22/2006:svn:pn:pvr:rvn:rnNF-MCP61:rvr:cvn:ct3:cvr:
>   version.compiz: compiz 1:0.9.8+bzr3249-0ubuntu2
>   version.ia32-libs: ia32-libs N/A
>   version.libdrm2: libdrm2 2.4.37-0ubuntu2
>   version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.4-1ubuntu1
>   version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
>   version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.4-1ubuntu1
>   version.xserver-xorg-core: xserver-xorg-core 2:1.12.99.902-0ubuntu1
>   version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 
> 1:2.7.0-2~ubuntu1
>   version.xserver-xorg-video-ati: xserver-xorg-video-ati 
> 1:6.99.99~git20120713.6ef1ad6a-0ubuntu1
>   version.xserver-xorg-video-intel: xserver-xorg-video-intel 
> 2:2.20.2-1ubuntu1
>   version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
> 1:1.0.1-4~ubuntu1
> 
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1033533/+subscriptions
> 
> -- 
> You received this bug notification because you are subscribed to a
> duplicate bug report (1043581).
> https://bugs.launchpad.net/bugs/1033533
> 
> Title:
>   Xorg crashed with SIGABRT: exaMemcpyBox with src=0x0 on nouveau with
>   SW rendering
> 
> Status in “xserver-xorg-video-nouveau” package in Ubuntu:
>   Confirmed
> Status in “xserver-xorg-video-nouveau” source package in Quantal:
>   Incomplete
> 
> Bug description:
>   Crash doing memcpy in EXA on nouveau, with software rendering
>   activated.
> 
>   #8  <signal handler called>
>   No symbol table info available.
>   #9  __memcpy_sse2 () at ../sysdeps/x86_64/multiarch/../memcpy.S:72
>   No locals.
>   #10 0x00007f570e63684e in memcpy (__len=23, __src=0x0, __dest=0x7f5713877100) at /usr/include/x86_64-linux-gnu/bits/string3.h:52
>   No locals.
>   #11 exaMemcpyBox (pbox=pbox@entry=0x7fffef000de0, src=0x0, src_pitch=64, dst=0x7f5713877100 "", dst_pitch=24, pPixmap=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at ../../exa/exa_migration_classic.c:59
>           i = 16
>           cpp = <optimized out>
>           bytes = 23
>   #12 0x00007f570e636d03 in exaCopyDirty (migrate=migrate@entry=0x7fffef000e40, pValidDst=0x7f5713dc3e40, pValidSrc=0x7f5713dc3e50, transfer=0x7f570f28b7f0 <nouveau_exa_download_from_screen>, fallback_index=fallback_index@entry=1, sync=0x7f570e635780 <exaWaitSync>) at ../../exa/exa_migration_classic.c:240
>           pPixmap = 0x7f5713dc3da0
>           pExaPixmap = 0x7f5713dc3e00
>           damage = <optimized out>
>           CopyReg = {extents = {x1 = 0, y1 = 0, x2 = 23, y2 = 16}, data = 0x0}
>           save_use_gpu_copy = 1
>           save_pitch = 64
>           pBox = 0x7fffef000de0
>           nbox = 1
>           access_prepared = 1
>           need_sync = 0
>   #13 0x00007f570e636f32 in exaCopyDirtyToSys (migrate=migrate@entry=0x7fffef000e40) at ../../exa/exa_migration_classic.c:285
>           pPixmap = <optimized out>
>           pExaScr = 0x7f5713877100
>           pExaPixmap = 0x0
>   #14 0x00007f570e63951a in exaPrepareAccessReg_mixed (pPixmap=0x7f5713dc3da0, index=<optimized out>, pReg=0x0) at ../../exa/exa_migration_mixed.c:254
>           as_dst = 1
>           pixmaps = {{as_dst = 0, as_src = 1, pPix = 0x7f5713dc3da0, pReg = 0x0}}
>           pExaPixmap = 0x7f5713dc3e00
>           has_gpu_copy = <optimized out>
>           success = <optimized out>
> 
>   [Original Report]
>   The crash report started immediately after login.
> 
>   ProblemType: Crash
>   DistroRelease: Ubuntu 12.10
>   Package: xserver-xorg-core 2:1.12.99.902-0ubuntu1
>   ProcVersionSignature: Ubuntu 3.5.0-8.8-generic 3.5.0
>   Uname: Linux 3.5.0-8-generic x86_64
>   .tmp.unity.support.test.0:
> 
>   ApportVersion: 2.4-0ubuntu6
>   Architecture: amd64
>   CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
>   CompositorRunning: None
>   CrashCounter: 1
>   Date: Sun Aug  5 14:46:44 2012
>   DistUpgraded: Fresh install
>   DistroCodename: quantal
>   DistroVariant: ubuntu
>   DkmsStatus:
>    virtualbox, 4.1.18, 3.5.0-6-generic, x86_64: installed
>    virtualbox, 4.1.18, 3.5.0-8-generic, x86_64: installed
>   ExecutablePath: /usr/bin/Xorg
>   ExtraDebuggingInterest: Yes, if not too technical
>   GraphicsCard:
>    NVIDIA Corporation C61 [GeForce 6100 nForce 400] [10de:03d2] (rev a2) (prog-if 00 [VGA controller])
>      Subsystem: NVIDIA Corporation Device [10de:cb84]
>   InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120519)
>   Lsusb:
>    Bus 001 Device 002: ID 18ec:3399 Arkmicro Technologies Inc.
>    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>    Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>   ProcCmdline: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch -background none
>   ProcEnviron:
> 
>   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-8-generic root=UUID=a80eff25-65c3-4db0-adad-31d8ea95823b ro quiet splash vt.handoff=7
>   Renderer: Software
>   Signal: 6
>   SourcePackage: xorg-server
>   StacktraceTop:
>    ?? () from /lib/x86_64-linux-gnu/libc.so.6
>    ?? () from /usr/lib/xorg/modules/libexa.so
>    ?? () from /usr/lib/xorg/modules/libexa.so
>    ?? () from /usr/lib/xorg/modules/libexa.so
>    ?? () from /usr/lib/xorg/modules/libexa.so
>   Title: Xorg crashed with SIGABRT
>   UpgradeStatus: No upgrade log present (probably fresh install)
>   UserGroups:
> 
>   dmi.bios.date: 09/22/2006
>   dmi.bios.vendor: Phoenix Technologies, LTD
>   dmi.bios.version: 6.00 PG
>   dmi.board.name: NF-MCP61
>   dmi.chassis.type: 3
>   dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd09/22/2006:svn:pn:pvr:rvn:rnNF-MCP61:rvr:cvn:ct3:cvr:
>   version.compiz: compiz 1:0.9.8+bzr3249-0ubuntu2
>   version.ia32-libs: ia32-libs N/A
>   version.libdrm2: libdrm2 2.4.37-0ubuntu2
>   version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.4-1ubuntu1
>   version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
>   version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.4-1ubuntu1
>   version.xserver-xorg-core: xserver-xorg-core 2:1.12.99.902-0ubuntu1
>   version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-2~ubuntu1
>   version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.99.99~git20120713.6ef1ad6a-0ubuntu1
>   version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.2-1ubuntu1
>   version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.1-4~ubuntu1
> 
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1033533/+subscriptions


-- 
Tactical Nuclear Kittens