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mb/system76/ptl: Add Lemur Pro 14 (lemp14)#270

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mb/system76/ptl: Add Lemur Pro 14 (lemp14)#270
crawfxrd wants to merge 5 commits intosystem76from
lemp14

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Reopen #268 because GitHub won't let me change the base branch.

Comment thread src/mainboard/system76/ptl/variants/lemp14/board.fmd Outdated
@crawfxrd crawfxrd force-pushed the lemp14 branch 2 times, most recently from a42ddd6 to 4c985c1 Compare March 23, 2026 20:35
@crawfxrd crawfxrd changed the base branch from rebase-26.03 to system76 March 24, 2026 16:38
@crawfxrd crawfxrd force-pushed the lemp14 branch 3 times, most recently from 4e53290 to 184e641 Compare April 20, 2026 20:07
crawfxrd and others added 3 commits April 21, 2026 16:38
From Table 7. Host Device ID (DID0) and Process Graphics Device ID
(DID2):

> Note: 1. DID2 value depends on graphics cores and platform
> configuration. Default value for 12xe graphics is B080h.
> Optional values are:
> * B081
> * B082
> * B083
> * B08F
> Refer to Panther Lake GPU Dynamic Branding Technical Advisory (#851572).

Fixes graphics init on Clevo L240JUX, which has DID 0xb082.

Change-Id: I5354b53ebe7f2c02db3557a26f2b978b98a6390f
Ref: Core Ultra Series 3 EDS, Volume 1 (#815002, r2.2)
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Change-Id: Id8b0b3bf0591c49f5b2b284ea1ed4fe17a4305b3
Co-authored-by: Tim Crawford <tcrawford@system76.com>
Signed-off-by: Jeremy Soller <jeremy@system76.com>
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Change-Id: I412d890ccb61a0bc3283d6050a36f54b315a00b8
Signed-off-by: Tim Crawford <tcrawford@system76.com>
@crawfxrd crawfxrd changed the title Lemp14 mb/system76/ptl: Add Lemur Pro 14 (lemp14) Apr 21, 2026
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Not sure what's causing this dmesg error:

i801_smbus 0000:00:1f.4: SMBus is busy, can't use it!

And some warnings:

ACPI MWAIT C-state 0x33 not supported by HW (0x1000)
hpet_acpi_add: no address or irqs in _CRS
intel-hid INT33D5:00: failed to enable HID power button
Platform does not have ENQCMD(S) support.
idxd 0000:00:0c.0: No in-kernel DMA with PASID. -28

Change-Id: I041df5e7fe583bdd840331af42f9c52bb27fbfa3
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Change-Id: I3158beed0e6cafa13ee466a6af803010ed0ca0c3
Signed-off-by: Tim Crawford <tcrawford@system76.com>
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