On Thu, Jan 08, 2026 at 02:18:04PM +0000, Atharva Tiwari wrote: > linux mint wouldnt install, because it gives a GRUB error. > so i cant compile the kernel, so the lspci is from 6.12:
That's fine, thanks! > 00:1c.4/07:00.0 PCI bridge [0604]: Intel Corporation JHL7540 Thunderbolt 3 > Bridge [Titan Ridge 4C 2018] [8086:15ea] (rev 06) (prog-if 00 [Normal decode]) > Subsystem: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge > 4C 2018] [8086:0000] > 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 > Interrupt: pin A routed to IRQ 10 > IOMMU group: 14 > Bus: primary=07, secondary=08, subordinate=7c, sec-latency=0 > I/O behind bridge: 5000-8fff [size=16K] [16-bit] > Memory behind bridge: 81900000-8fafffff [size=226M] [32-bit] > Prefetchable memory behind bridge: b1800000-bf7fffff [size=224M] > [32-bit] > Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- > <MAbort- <SERR- <PERR- > BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B- > PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- > Capabilities: [80] Power Management version 3 > Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA > PME(D0+,D1+,D2+,D3hot+,D3cold+) > Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- > Capabilities: [88] MSI: Enable- Count=1/1 Maskable- 64bit+ > Address: 0000000000000000 Data: 0000 > Capabilities: [ac] Subsystem: Intel Corporation JHL7540 Thunderbolt 3 > Bridge [Titan Ridge 4C 2018] [8086:0000] > Capabilities: [c0] Express (v2) Upstream Port, MSI 00 > DevCap: MaxPayload 128 bytes, PhantFunc 0 > ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ SlotPowerLimit > 25W > DevCtl: CorrErr+ NonFatalErr+ FatalErr+ UnsupReq+ > RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+ > MaxPayload 128 bytes, MaxReadReq 512 bytes > DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr+ > TransPend- > LnkCap: Port #0, Speed 8GT/s, Width x4, ASPM L1, Exit Latency > L1 <2us > ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+ > LnkCtl: ASPM Disabled; Disabled- CommClk+ > ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- > LnkSta: Speed 8GT/s, Width x4 > TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- > DevCap2: Completion Timeout: Not Supported, TimeoutDis- > NROPrPrP- LTR+ > 10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- > EETLPPrefix- > EmergencyPowerReduction Not Supported, > EmergencyPowerReductionInit- > FRS- > AtomicOpsCap: Routing- > DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR+ > 10BitTagReq- OBFF Disabled, > AtomicOpsCtl: EgressBlck- > LnkCap2: Supported Link Speeds: 2.5-8GT/s, Crosslink- Retimer- > 2Retimers- DRS- > LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis- > Transmit Margin: Normal Operating Range, > EnterModifiedCompliance- ComplianceSOS- > Compliance Preset/De-emphasis: -6dB de-emphasis, 0dB > preshoot > LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete+ > EqualizationPhase1+ > EqualizationPhase2+ EqualizationPhase3+ > LinkEqualizationRequest- > Retimer- 2Retimers- CrosslinkRes: unsupported > Capabilities: [50] Capability ID 0x15 [0000] > Capabilities: [100 v1] Device Serial Number ee-ad-a4-f1-8e-b3-02-00 > Capabilities: [200 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- > AdvNonFatalErr- > CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- > AdvNonFatalErr+ > AERCap: First Error Pointer: 00, ECRCGenCap- ECRCGenEn- > ECRCChkCap- ECRCChkEn- > MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap- > HeaderLog: 00000000 00000000 00000000 00000000 > Capabilities: [300 v1] Virtual Channel > Caps: LPEVC=0 RefClk=100ns PATEntryBits=1 > Arb: Fixed- WRR32- WRR64- WRR128- > Ctrl: ArbSelect=Fixed > Status: InProgress- > VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans- > Arb: Fixed+ WRR32- WRR64- WRR128- TWRR128- WRR256- > Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff > Status: NegoPending- InProgress- > Capabilities: [400 v1] Power Budgeting <?> > Capabilities: [500 v1] Vendor Specific Information: ID=1234 Rev=1 > Len=100 <?> > Capabilities: [600 v1] Vendor Specific Information: ID=8086 Rev=2 > Len=04c <?> > Capabilities: [700 v1] Secondary PCI Express > LnkCtl3: LnkEquIntrruptEn- PerformEqu- > LaneErrStat: 0 > Capabilities: [800 v1] Latency Tolerance Reporting > Max snoop latency: 0ns > Max no snoop latency: 0ns > Capabilities: [a00 v1] L1 PM Substates > L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ > L1_PM_Substates+ > PortCommonModeRestoreTime=0us PortTPowerOnTime=10us > L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1- > T_CommonMode=0us LTR1.2_Threshold=0ns > L1SubCtl2: T_PwrOn=10us > Capabilities: [b00 v1] Precision Time Measurement > PTMCap: Requester:- Responder:- Root:- > PTMClockGranularity: Unimplemented > PTMControl: Enabled:+ RootSelected:- At least this shows a similar issue we fixed for Barlow Ridge. I don't have Titan Ridge host here so cannot try to repro but I wonder if you could still try with CONFIG_PCIE_PTM=n and see if that changes anything? Of course assuming you get the Linux installation working again.
