Hello, by chance I've found this posts and while it's quite recent I'd like to add my comments in this matter. I also have Ubuntu 11.10 and similar graphic card(AMD 6850M). While playing under wine in D3D games(Drakensang: The dark eye, Crysis 2, Jagged Alliance Back In Action) after a while x-org crashes. So this is the same issue as panska described. X-org output below: Code: X.Org X Server 1.10.4 Release Date: 2011-08-19 X Protocol Version 11, Revision 0 Build Operating System: Linux 2.6.24-29-server x86_64 Ubuntu Current Operating System: Linux jaroslaw-Aspire-7750G 3.0.0-13-generic #22-Ubuntu SMP Wed Nov 2 13:27:26 UTC 2011 x86_64 Kernel command line: BOOT_IMAGE=/@/boot/vmlinuz-3.0.0-13-generic root=/dev/sda1 ro rootflags=subvol=@ crashkernel=384M-2G:64M,2G-:128M quiet splash vt.handoff=7 Build Date: 19 October 2011 05:21:26AM xorg-server 2:1.10.4-1ubuntu4.2 (For technical support please see http://www.ubuntu.com/support) Current version of pixman: 0.22.2 Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (==) Log file: "/var/log/Xorg.0.log", Time: Mon Nov 28 20:03:45 2011 (==) Using config file: "/etc/X11/xorg.conf" (==) Using system config directory "/usr/share/X11/xorg.conf.d" (WW) fglrx: No matching Device section for instance (BusID PCI:0@1:0:1) found [- XMM_GLX] [I ]glesxXvInit Configureable RGBOutputColorRange The XKEYBOARD keymap compiler (xkbcomp) reports: > Warning: Type "ONE_LEVEL" has 1 levels, but <RALT> has 2 symbols > Ignoring extra symbols Errors from xkbcomp are not fatal to the X server Wine 1.4-rc4 output till crash: Code: fixme:win:EnumDisplayDevicesW ((null),0,0x33ee10,0x00000000), stub! Setting breakpad minidump AppID = 57740 Steam_SetMinidumpSteamID: Caching Steam ID: 76561197960265728 [API loaded no] fixme:win:EnumDisplayDevicesW ((null),0,0x33f264,0x00000000), stub! fixme:avrt:AvSetMmThreadCharacteristicsW (L"Audio",0x228e9d4): stub fixme:d3d:wined3d_swapchain_set_gamma_ramp Ignoring flags 0x1. fixme:d3d:resource_check_usage Unhandled usage flags 0x8. ... fixme:d3d:resource_check_usage Unhandled usage flags 0x8. err:quartz:GetClassMediaFile Media class not found err:quartz:GetClassMediaFile Media class not found err:quartz:GetClassMediaFile Media class not found err:quartz:GetClassMediaFile Media class not found err:quartz:GetClassMediaFile Media class not found err:quartz:GetClassMediaFile Media class not found fixme:d3d:resource_check_usage Unhandled usage flags 0x8. fixme:d3d:resource_check_usage Unhandled usage flags 0x8. fixme:d3d:resource_check_usage Unhandled usage flags 0x8. fixme:thread:SetThreadIdealProcessor (0x1dc): stub fixme:thread:SetThreadIdealProcessor (0x1e0): stub fixme:thread:SetThreadIdealProcessor (0x1fc): stub fixme:thread:SetThreadIdealProcessor (0x200): stub fixme:thread:SetThreadIdealProcessor (0x21c): stub fixme:thread:SetThreadIdealProcessor (0x220): stub fixme:d3d:resource_check_usage Unhandled usage flags 0x8. ... fixme:d3d:resource_check_usage Unhandled usage flags 0x8. err:quartz:GetClassMediaFile Media class not found fixme:d3d:resource_check_usage Unhandled usage flags 0x8. fixme:d3d:resource_check_usage Unhandled usage flags 0x8. fixme:d3d:resource_check_usage Unhandled usage flags 0x8. fixme:d3d:resource_check_usage Unhandled usage flags 0x8. err:winediag:shader_generate_glsl_declarations The hardware does not support enough uniform components to run this shader, it may not render correctly. fixme:d3d9:Direct3DShaderValidatorCreate9 stub fixme:thread:SetThreadIdealProcessor (0x274): stub ... fixme:thread:SetThreadIdealProcessor (0x290): stub fixme:d3d:resource_check_usage Unhandled usage flags 0x8. ... If anybody can figure anything out from the logs or at least confirm that this is only Ubuntu specific I would greatful.[/code]