https://bugzilla.kernel.org/show_bug.cgi?id=106341 Bug ID: 106341 Summary: radeon - monitors fail to sync with modes with vertical refresh rate under 60 Hz on FirePro V4800 Product: Drivers Version: 2.5 Kernel Version: 4.3.0-rc6 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@xxxxxxxxxxxxxxxxxxxx Reporter: tim@xxxxxxxxxxx Regression: No With newer kernels, display resolutions under 60Hz the attached monitors (tried multiple with multiple modes on DVI and display port) fail to sync. Working kernel: 3.16.0-4-amd64 (Debian) Non working: 4.1.0 (Debian), and 4.3.0-rc6 (mainline). My main monitor is a 4k resolution monitor which will only supports 30Hz at the default full native resolution. [ 14.102283] [drm] radeon kernel modesetting enabled. [ 14.103946] radeon 0000:01:00.0: VRAM: 1024M 0x0000000000000000 - 0x000000003FFFFFFF (1024M used) [ 14.104022] radeon 0000:01:00.0: GTT: 1024M 0x0000000040000000 - 0x000000007FFFFFFF [ 14.105476] [drm] radeon: 1024M of VRAM memory ready [ 14.105672] [drm] radeon: 1024M of GTT memory ready. [ 14.108782] radeon 0000:01:00.0: firmware: direct-loading firmware radeon/REDWOOD_pfp.bin [ 14.109799] radeon 0000:01:00.0: firmware: direct-loading firmware radeon/REDWOOD_me.bin [ 14.114441] radeon 0000:01:00.0: firmware: direct-loading firmware radeon/REDWOOD_rlc.bin [ 14.117105] radeon 0000:01:00.0: firmware: direct-loading firmware radeon/REDWOOD_smc.bin [ 14.143419] [drm] radeon: dpm initialized [ 14.144488] radeon 0000:01:00.0: firmware: direct-loading firmware radeon/CYPRESS_uvd.bin [ 14.145853] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0 [ 14.154866] radeon 0000:01:00.0: WB enabled [ 14.154910] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000040000c00 and cpu addr 0xffff88033072ac00 [ 14.154975] radeon 0000:01:00.0: fence driver on ring 3 use gpu addr 0x0000000040000c0c and cpu addr 0xffff88033072ac0c [ 14.155929] radeon 0000:01:00.0: fence driver on ring 5 use gpu addr 0x000000000005c418 and cpu addr 0xffffc9000241c418 [ 14.156093] radeon 0000:01:00.0: radeon: MSI limited to 32-bit [ 14.156159] radeon 0000:01:00.0: radeon: using MSI. [ 14.156242] [drm] radeon: irq initialized. [ 15.443703] fbcon: radeondrmfb (fb0) is primary device [ 15.669263] radeon 0000:01:00.0: fb0: radeondrmfb frame buffer device [ 15.669288] radeon 0000:01:00.0: registered panic notifier [ 15.679661] [drm] Initialized radeon 2.43.0 20080528 for 0000:01:00.0 on minor 0 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Redwood XT GL [FirePro V4800] (prog-if 00 [VGA controller]) Subsystem: Dell Device 240a Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 49 Region 0: Memory at d0000000 (64-bit, prefetchable) [size=256M] Region 2: Memory at fbce0000 (64-bit, non-prefetchable) [size=128K] Region 4: I/O ports at c000 [size=256] Expansion ROM at fbcc0000 [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] Express (v2) Legacy Endpoint, MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr- TransPend- LnkCap: Port #0, Speed 5GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <64ns, L1 <1us ClockPM- Surprise- LLActRep- BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 5GT/s, Width x16, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR-, OBFF Not Supported DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Address: 00000000feeff00c Data: 4172 Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?> Capabilities: [150 v1] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn- Kernel driver in use: radeon -- You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel