Radeon HD

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May 2011

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0x9400:0x1002:0x3000: ATI Technologies Inc Sapphire Radeon HD 2900 XT
by Michael Zapf 21 May '11

21 May '11

Hi, according to the comments in my Xorg.0.log, here is my notification to you that the radeonhd driver has problems with my card. I already used nomodeset as kernel parameter on startup. Problem: The video performance is extremely low, virtually unusable (especially 2D performance). I have to switch to AMD's proprietary driver. lspci: 01:00.0 VGA compatible controller: ATI Technologies Inc R600 [Radeon HD 2900 Series] (prog-if 00 [VGA controller]) Subsystem: ATI Technologies Inc Sapphire Radeon HD 2900 XT Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at e0000000 (64-bit, prefetchable) [size=256M] Memory at f5000000 (64-bit, non-prefetchable) [size=64K] I/O ports at a000 [size=256] [virtual] Expansion ROM at f4000000 [disabled] [size=128K] Capabilities: [50] Power Management version 3 Capabilities: [58] Express Legacy Endpoint, MSI 00 Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?> [ 19.117] (EE) KMS is disabled. This is good for us, because RADEONHD conflicts with KMS. ... [ 19.124] (II) RADEONHD(0): Card not in database: 0x9400:0x1002:0x3000; using generic modesetting. [ 19.124] If - and only if - your card does not work or does not work optimally please contact radeonhd(a)opensuse.org to help rectify this. Use the subject: 0x9400:0x1002:0x3000: <name of board> and *please* describe the problems you are seeing in your message. ... [ 19.339] (II) AIGLX: Screen 0 is not DRI2 capable [ 19.339] (II) AIGLX: Screen 0 is not DRI capable Michael -- To unsubscribe, e-mail: radeonhd+unsubscribe(a)opensuse.org For additional commands, e-mail: radeonhd+help(a)opensuse.org

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[Bug 20593] New: radeonhd driver generates unaligned traps on Alpha
by bugzilla-daemon＠freedesktop.org 16 May '11

16 May '11

http://bugs.freedesktop.org/show_bug.cgi?id=20593 Summary: radeonhd driver generates unaligned traps on Alpha Product: xorg Version: git Platform: Alpha OS/Version: Linux (All) Status: NEW Severity: minor Priority: low Component: Driver/radeonhd AssignedTo: lverhaegen(a)suse.de ReportedBy: mcree(a)orcon.net.nz QAContact: xorg-team(a)lists.x.org CC: mcree(a)orcon.net.nz The radeonhd driver generates unaligned traps on Alpha architecture. These are not a show stopper, but do incur very inefficient memory accesses via kernel traps, and pollute the kernel logs with annoying messages. Using radeonhd at git df71658688e47614a3f660c28ac1dc77970eb491 But the version is irrelevant as the misaligned memory accesses have been there for a long time - I have been too lazy to report them until now. >From dmesg: X(2015): unaligned trap at 0000020000903088: 000002000098c5d7 28 1 X(2015): unaligned trap at 0000020000903088: 000002000098c5df 28 1 X(2015): unaligned trap at 0000020000903088: 000002000098c5e7 28 1 X(2015): unaligned trap at 0000020000903088: 0000020000989771 28 1 Connecting gdb to the running X process reveals the culprit: (gdb) list *0x0000020000903088 0x20000903088 is in GetParametersDirect32 (AtomBios/CD_Operations.c:441). 436 } 437 438 UINT32 GetParametersDirect32(PARSER_TEMP_DATA STACK_BASED * pParserTempData) 439 { 440 pParserTempData->CD_Mask.SrcAlignment=alignmentDword; 441 pParserTempData->Index=*(UINT32*)pParserTempData->pWorkingTableData->IP; 442 pParserTempData->pWorkingTableData->IP+=sizeof(UINT32); 443 return pParserTempData->Index; 444 } 445 Line 441 is a 32bit (long word) access. The address dereferenced is not aligned to a 32bit boundary for an unaligned trap to occur. The ati driver is worse. It coughs up unaligned traps from GetParametersDirect16() and GetParametersRegister() too, but I haven't seen these from radeonhd. Cheers Michael. -- Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the QA contact for the bug. _______________________________________________ xorg-team mailing list xorg-team(a)lists.x.org http://lists.x.org/mailman/listinfo/xorg-team -- To unsubscribe, e-mail: radeonhd+unsubscribe(a)opensuse.org For additional commands, e-mail: radeonhd+help(a)opensuse.org

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