At Sat, 08 Sep 2012 14:59:09 +0100, Chris Rankin wrote:

Hi,

I have recently added a Radeon HD4670 to one of my older PCs, and have noticed that it has IRQ trouble when I try to enable the HDMI audio:

irq 17: nobody cared (try booting with the "irqpoll" option) Pid: 0, comm: swapper/0 Not tainted 3.5.3 #2 Call Trace: [<c1063806>] ? __report_bad_irq+0x11/0x94 [<c1063a2d>] ? note_interrupt+0x120/0x19b [<c1062325>] ? handle_irq_event_percpu+0xe8/0xfb [<c1062361>] ? handle_irq_event+0x29/0x40 [<c10640fc>] ? handle_level_irq+0x93/0x93 [<c1064163>] ? handle_fasteoi_irq+0x67/0x90 <IRQ> [<c1003625>] ? do_IRQ+0x2e/0x83 [<c1229829>] ? common_interrupt+0x29/0x30 [<c106007b>] ? audit_update_watch+0x59/0x285 [<c1007479>] ? default_idle+0x23/0x3b [<c1007b38>] ? cpu_idle+0x4b/0x7e [<c1314877>] ? start_kernel+0x2a4/0x2a7 handlers: [<f8c97b75>] azx_interrupt [snd_hda_intel] Disabling IRQ #17

This is frequently followed by KMS trouble too:

irq 16: nobody cared (try booting with the "irqpoll" option) Pid: 0, comm: swapper/0 Not tainted 3.5.3 #2 Call Trace: [<c1063806>] ? __report_bad_irq+0x11/0x94 [<c1063a2d>] ? note_interrupt+0x120/0x19b [<c1062325>] ? handle_irq_event_percpu+0xe8/0xfb [<c1062361>] ? handle_irq_event+0x29/0x40 [<c10640fc>] ? handle_level_irq+0x93/0x93 [<c1064163>] ? handle_fasteoi_irq+0x67/0x90 <IRQ> [<c1003625>] ? do_IRQ+0x2e/0x83 [<c1229829>] ? common_interrupt+0x29/0x30 [<c106007b>] ? audit_update_watch+0x59/0x285 [<c1007479>] ? default_idle+0x23/0x3b [<c1007b38>] ? cpu_idle+0x4b/0x7e [<c1314877>] ? start_kernel+0x2a4/0x2a7 handlers: [<f818bfb3>] radeon_driver_irq_handler_kms [radeon] [<f81fe55f>] usb_hcd_irq [usbcore] Disabling IRQ #16

The PCI entries are:

01:00.1 Audio device: ATI Technologies Inc RV710/730 Subsystem: ATI Technologies Inc RV710/730 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 64 (2000ns min), Cache Line Size: 64 bytes Interrupt: pin B routed to IRQ 17 Region 0: Memory at ff8ec000 (32-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 3 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Kernel driver in use: snd_hda_intel

and:

01:00.0 VGA compatible controller: ATI Technologies Inc RV730 Pro AGP [Radeon HD 4600 Series] (prog-if 00 [VGA controller]) Subsystem: ATI Technologies Inc Device 0028 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx+ Latency: 64 (2000ns min), Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 16 Region 0: Memory at e0000000 (32-bit, prefetchable) [size=256M] Region 1: I/O ports at ec00 [size=256] Region 2: Memory at ff8f0000 (32-bit, non-prefetchable) [size=64K] Expansion ROM at ff800000 [disabled] [size=128K] Capabilities: [50] Power Management version 3 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [58] AGP version 3.0 Status: RQ=256 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW+ AGP3+ Rate=x4,x8 Command: RQ=32 ArqSz=2 Cal=0 SBA+ AGP+ GART64- 64bit- FW- Rate=x8 Kernel driver in use: radeon

Does anyone have any suggestions, please?

Did you try any workaround boot options such as irqpoll, pci=nocrs or whatever?

Takashi