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Hello,

I got a laptop with dual graphic cards (intel/AMD Radeon HD 7970M). As long as I use the open source drivers everything works fine (albeit with really poor performances). However, whenever I switch to flgrx drivers, or to latest ATI drivers, the game fail to launch after champion selection (show league of legends splash for a while then bugsplat).

I've searched around, tried some fixes but to no avail so far. So i'd gladly take some advices :)

System infos
 - fresh Ubuntu 14.04 64bits (also tried on 13.10 with similar results)
 - fresh lol install from play on linux with default params + tuxlol patch (wine 1.7-LeagueOfLegend)
 - Unity
 - fglrx drivers (also tested with latest drivers from ATI, with similar results)

debug log:
fixme:urlmon:SecManagerImpl_ProcessUrlAction Unsupported arguments
fixme:urlmon:SecManagerImpl_ProcessUrlAction Unsupported arguments
fixme:urlmon:SecManagerImpl_ProcessUrlAction Unsupported arguments
fixme:urlmon:SecManagerImpl_ProcessUrlAction Unsupported arguments
fixme:wintrust:HTTPSCertificateTrust (0x156136e0)
fixme:wintrust:HTTPSFinalProv (0x156136e0)
fixme:ras:RasEnumConnectionsW (0x137930,0x86dd258,0x6305fe34),stub!
fixme:ras:RasEnumConnectionsW RAS support is not implemented! Configure program to use LAN connection/winsock instead!
fixme:urlmon:SecManagerImpl_ProcessUrlAction Unsupported arguments
fixme:ras:RasEnumConnectionsW (0x137930,0xb31d258,0x6305fe34),stub!
fixme:ras:RasEnumConnectionsW RAS support is not implemented! Configure program to use LAN connection/winsock instead!
fixme:service:EnumServicesStatusW resume handle not supported
fixme:urlmon:SecManagerImpl_ProcessUrlAction Unsupported arguments
fixme:ras:RasEnumConnectionsW (0x137930,0xb31d258,0x6305fe34),stub!
fixme:ras:RasEnumConnectionsW RAS support is not implemented! Configure program to use LAN connection/winsock instead!
fixme:service:EnumServicesStatusW resume handle not supported
fixme:urlmon:SecManagerImpl_ProcessUrlAction Unsupported arguments
fixme:ver:GetCurrentPackageId (0x33d6ac (nil)): stub
fixme:ver:GetCurrentPackageId (0x33ee90 (nil)): stub
fixme:win:EnumDisplayDevicesW ((null),0,0x33f7e4,0x00000000), stub!
fixme:win:EnumDisplayDevicesW (L"\\\\.\\DISPLAY1",0,0x33f49c,0x00000000), stub!
fixme:msg:pack_message msg 14 (WM_ERASEBKGND) not supported yet
fixme:ver:GetCurrentPackageId (0x33e164 (nil)): stub
fixme:wbemprox:wbem_services_CreateInstanceEnum unsupported flags 0x00000030
fixme:wbemprox:enum_class_object_Next timeout not supported
fixme:win:EnumDisplayDevicesW ((null),0,0x41fd5e8,0x00000000), stub!
fixme:win:EnumDisplayDevicesW ((null),0,0x41fd3d8,0x00000000), stub!
fixme:ddraw:ddraw7_Initialize Ignoring guid {aeb2cdd4-6e41-43ea-941c-8361cc760781}.
err:ntdll:RtlpWaitForCriticalSection section 0x7db65740 "wined3d_main.c: wined3d_cs" wait timed out in thread 0060, blocked by 005a, retrying (60 sec)
fixme:dbghelp:elf_search_auxv can't find symbol in module
fixme:heap:HeapSetInformation (nil) 1 (nil) 0
fixme:ras:RasEnumConnectionsW (0x137930,0xb31d258,0x6305fe34),stub!
fixme:ras:RasEnumConnectionsW RAS support is not implemented! Configure program to use LAN connection/winsock instead!
fixme:service:EnumServicesStatusW resume handle not supported
fixme:urlmon:SecManagerImpl_ProcessUrlAction Unsupported arguments
fixme:urlmon:SecManagerImpl_ProcessUrlAction Unsupported arguments
fixme:urlmon:SecManagerImpl_ProcessUrlAction Unsupported arguments
fixme:crypt:CRYPT_RegControl CERT_STORE_CTRL_AUTO_RESYNC: stub
fixme:crypt:CRYPT_RegControl CERT_STORE_CTRL_AUTO_RESYNC: stub

r3d log:
000002.225|       0.0000kb|      0.0000kb added| ALWAYS| Data overlay start folder initialized to DATA, Content/Src
000002.237|       0.0000kb|      0.0000kb added| ALWAYS| Global logging level set to   WARN
000002.237|       0.0000kb|      0.0000kb added| ALWAYS| Build Version: Version 4.7.0.298 (May  8 2014/17:44:23) [PUBLIC] <Releases/4.7> ChangeList: 558089
000002.259|       0.0000kb|      0.0000kb added| ALWAYS| Started System Init
000002.309|       0.0000kb|      0.0000kb added| ALWAYS| Maestro Init
000002.323|       0.0000kb|      0.0000kb added| ALWAYS| Maestro completed init
000002.324|       0.0000kb|      0.0000kb added|  ERROR| RadsOpenFile: RADS cannot open file "ClientZips.txt" because it's not in the manifest.
000002.324|       0.0000kb|      0.0000kb added|  ERROR| Failed to open "ClientZips.txt"
000002.400|       0.0000kb|      0.0000kb added| ALWAYS| StartSession called
000002.400|       0.0000kb|      0.0000kb added| ALWAYS| Started Init event arguments
000002.402|       0.0000kb|      0.0000kb added| ALWAYS| Waiting until connection...
000002.618|       0.0000kb|      0.0000kb added| ALWAYS| InitRenderer() enter
000002.618|       0.0000kb|      0.0000kb added| ALWAYS| r3dRenderLayer::Init(0x000100d0) enter
000068.523|       0.0000kb|      0.0000kb added|  ERROR| Crash Occurred

Thanks !

I've tried some more stuff, no improvement so far :
- restarted from a fresh 14.04 again
- tried fglrx-update drivers (exactly same result as fglrx ones)
- tried some other games w/ fglrx drivers to check if it's a generalized problem, turns out it's not (l4d2, runs perfectly with good performances, alien swarm w/ wine, looks okay).
- tried the "hosts" fix (no change)

Still, this bug doesnt appear w/ radeon drivers (but w/ bad perf), so I guess there's something i'm doing wrong, but I can't figure out what.

Having the same issue. Ubuntu 12.04. AMD R7-240