Dear Intel et al,
With a HP Spectre x360 16 16-f1xxx/891D (Intel i7-1260P) with an Arc
A370M GPU [1] running the latest Ubuntu 22.10 5.19.0-15-generic
kernel, we see:
i915 0000:03:00.0: Your graphics device 5693 is not properly supported
by the driver in this kernel version. To force driver probe anyway,
use i915.force_probe=5693
Since the GPU is unmanaged, battery life is around 30% of what it
could be. Unsurprisingly, adding i915.force_probe=5693 causes
additional issues. Given a lack of BIOS option to disable the GPU, is
there any advice for Linux support or at least putting the GPU into
D3? I see only Windows drivers on the official support page [2], and
Linux 6.0-rc5 isn't buildable [3].
Thanks,
Daniel
-- [1] 03:00.0 Display controller: Intel Corporation DG2 [Arc A370M] (rev 05)
Subsystem: Hewlett-Packard Company Device 891d
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-
IOMMU group: 23
Region 0: Memory at 5f000000 (64-bit, non-prefetchable) [disabled]
[size=16M]
Region 2: Memory at 6000000000 (64-bit, prefetchable) [disabled] [size=4G]
Expansion ROM at <ignored> [disabled]
Capabilities: [40] Vendor Specific Information: Len=0c <?>
Capabilities: [70] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0W
DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+ FLReset-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit
Latency L0s <64ns, L1 <1us
ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+
LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1
TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range B, TimeoutDis+ NROPrPrP- LTR+
10BitTagComp+ 10BitTagReq+ OBFF Not Supported, ExtFmt+ EETLPPrefix-
EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
FRS- TPHComp- ExtTPHComp-
AtomicOpsCap: 32bit- 64bit- 128bitCAS-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR+
10BitTagReq- OBFF Disabled,
AtomicOpsCtl: ReqEn-
LnkCap2: Supported Link Speeds: 2.5GT/s, Crosslink- Retimer-
2Retimers- DRS-
LnkCtl2: Target Link Speed: 2.5GT/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: [ac] MSI: Enable- Count=1/1 Maskable+ 64bit+
Address: 0000000000000000 Data: 0000
Masking: 00000000 Pending: 00000000
Capabilities: [d0] 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: [100 v1] Alternative Routing-ID Interpretation (ARI)
ARICap: MFVC- ACS-, Next Function: 0
ARICtl: MFVC- ACS-, Function Group: 0
Capabilities: [420 v1] Physical Resizable BAR
BAR 2: current size: 4GB, supported: 256MB 512MB 1GB 2GB 4GB
Capabilities: [400 v1] Latency Tolerance Reporting
Max snoop latency: 15728640ns
Max no snoop latency: 15728640ns
Kernel modules: i915
-- [2]
https://www.intel.com/content/www/us/en/support/products/228342/graphics/intel-arc-dedicated-graphics-family/intel-arc-a-series-graphics/intel-arc-a370m-graphics.html
-- [3] https://kernel.ubuntu.com/~kernel-ppa/mainline/v6.0-rc5/
--
Daniel J Blueman
