I had the same error message when using fast user switching. This is with Precise on a MSI WindBox DC-100 (Radeon HD 6320), so not exactly the same circumstances, but this got fixed installing libdrm- radeon1_2.4.46+git20130702.c6d73cfe-0ubuntu0sarvatt~precise (and the rest of the updated pakages) from the xorg-edgers PPA.
According to [0], commit 0980633afd9c7eecc0c75ef3bea4d3c6b7aa1898 in libdrm should be the reason why this is fixed. [0] http://lists.debian.org/debian-x/2013/01/msg00158.html -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/717870 Title: RV710: [drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -35! Status in X.org XServer - ATI gfx chipset driver: Unknown Status in “xserver-xorg-video-ati” package in Ubuntu: Confirmed Bug description: I've triggered this a couple of times today. My .xsession-errors has: failed to attach dri2 back buffer 4 arrowValue 0 arrowValue 0 arrowValue 0 drmRadeonCmdBuffer: -35. Kernel failed to parse or rejected command stream. See dmesg for more info. and the dmesg has [drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -35! I think both cases were when changing workspace on kwin (slider animation). Restarting kwin and it seems to limp along. This is running a Kubuntu environment with chromium (which will have had flash playing), amarok and a few terminals. Machine is an i7-860 with an HD4350 graphics card (RV710). Dave ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: linux-image-2.6.38-3-generic 2.6.38-3.30 Regression: Yes ProcVersionSignature: Ubuntu 2.6.38-3.30-generic 2.6.38-rc4 Uname: Linux 2.6.38-3-generic x86_64 Architecture: amd64 CheckboxSubmission: f2d10bd9f943a85b486a282e7840a570 CheckboxSystem: 0531969bcfd4f03af7405c98dc94a948 Date: Sat Feb 12 20:36:49 2011 InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027) ProcEnviron: PATH=(custom, user) LANG=en_GB.UTF-8 LC_MESSAGES=en_AG.utf8 SHELL=/bin/bash SourcePackage: linux --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: VT1708S Analog [VT1708S Analog] Subdevices: 2/2 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: dg 2182 F.... pulseaudio /dev/snd/pcmC0D0p: dg 2182 F...m pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xfbcf8000 irq 47' Mixer name : 'VIA VT1708S' Components : 'HDA:11060397,18490397,00100000' Controls : 37 Simple ctrls : 21 Card1.Amixer.info: Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfbffc000 irq 48' Mixer name : 'ATI R6xx HDMI' Components : 'HDA:1002aa01,00aa0100,00100100' Controls : 4 Simple ctrls : 1 Card1.Amixer.values: Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [off] CheckboxSubmission: f2d10bd9f943a85b486a282e7840a570 CheckboxSystem: 0531969bcfd4f03af7405c98dc94a948 DistroRelease: Ubuntu 11.04 Frequency: Once a day. HibernationDevice: RESUME=UUID=6f692bcf-9da3-442b-854d-1d1c129a65fd InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027) IwConfig: lo no wireless extensions. eth0 no wireless extensions. virbr0 no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. Package: linux (not installed) ProcEnviron: LANGUAGE=en_GB:en PATH=(custom, user) LANG=en_GB.UTF-8 LC_MESSAGES=en_GB.utf8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-3-generic root=UUID=d8314979-8ace-401c-88df-728ad6b89cb5 ro ignore_loglevel netconsole=4444@192.168.66.33/eth0,514@192.168.66.25/00:a0:d1:63:68:a6 nointremap crashkernel=384M-2G:64M,2G-:128M quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 2.6.38-3.30-generic 2.6.38-rc4 Regression: No RelatedPackageVersions: linux-restricted-modules-2.6.38-3-generic N/A linux-backports-modules-2.6.38-3-generic N/A linux-firmware 1.47 Reproducible: No RfKill: Tags: natty kernel-power suspend resume needs-upstream-testing Uname: Linux 2.6.38-3-generic x86_64 UserGroups: adm admin cdrom dialout libvirtd lpadmin netdev plugdev sambashare dmi.bios.date: 09/10/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P1.50 dmi.board.name: P55M Pro dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.50:bd09/10/2009:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnP55MPro:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-driver-ati/+bug/717870/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp