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* [Bug 221861] New: ucsi_acpi fails to probe on HP EliteBook X G1a (PNP0CA0/USBC000:00), USB-PD stuck at 100W SPR, cannot reach 140W EPR
@ 2026-08-09 23:33 bugzilla-daemon
  2026-08-09 23:33 ` [Bug 221861] " bugzilla-daemon
                   ` (5 more replies)
  0 siblings, 6 replies; 7+ messages in thread
From: bugzilla-daemon @ 2026-08-09 23:33 UTC (permalink / raw)
  To: linux-usb

https://bugzilla.kernel.org/show_bug.cgi?id=221861

            Bug ID: 221861
           Summary: ucsi_acpi fails to probe on HP EliteBook X G1a
                    (PNP0CA0/USBC000:00), USB-PD stuck at 100W SPR, cannot
                    reach 140W EPR
           Product: Drivers
           Version: 2.5
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: low
          Priority: P3
         Component: USB
          Assignee: drivers_usb@kernel-bugs.kernel.org
          Reporter: jayden.blain@gmail.com
        Regression: No

Created attachment 310607
  --> https://bugzilla.kernel.org/attachment.cgi?id=310607&action=edit
LLM Generated report

trying to get the HP Elitebook x g1a to charge at 140w 28v5a. mutltiple cables
and chargers tested that are confirmed to work. laptop was at ~50% for tests,
ideal SoC for high power charging. Have not tested on Windows.

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* [Bug 221861] ucsi_acpi fails to probe on HP EliteBook X G1a (PNP0CA0/USBC000:00), USB-PD stuck at 100W SPR, cannot reach 140W EPR
  2026-08-09 23:33 [Bug 221861] New: ucsi_acpi fails to probe on HP EliteBook X G1a (PNP0CA0/USBC000:00), USB-PD stuck at 100W SPR, cannot reach 140W EPR bugzilla-daemon
@ 2026-08-09 23:33 ` bugzilla-daemon
  2026-08-09 23:34 ` bugzilla-daemon
                   ` (4 subsequent siblings)
  5 siblings, 0 replies; 7+ messages in thread
From: bugzilla-daemon @ 2026-08-09 23:33 UTC (permalink / raw)
  To: linux-usb

https://bugzilla.kernel.org/show_bug.cgi?id=221861

--- Comment #1 from jayden.blain@gmail.com ---
Created attachment 310608
  --> https://bugzilla.kernel.org/attachment.cgi?id=310608&action=edit
dmesg log

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* [Bug 221861] ucsi_acpi fails to probe on HP EliteBook X G1a (PNP0CA0/USBC000:00), USB-PD stuck at 100W SPR, cannot reach 140W EPR
  2026-08-09 23:33 [Bug 221861] New: ucsi_acpi fails to probe on HP EliteBook X G1a (PNP0CA0/USBC000:00), USB-PD stuck at 100W SPR, cannot reach 140W EPR bugzilla-daemon
  2026-08-09 23:33 ` [Bug 221861] " bugzilla-daemon
@ 2026-08-09 23:34 ` bugzilla-daemon
  2026-08-09 23:34 ` bugzilla-daemon
                   ` (3 subsequent siblings)
  5 siblings, 0 replies; 7+ messages in thread
From: bugzilla-daemon @ 2026-08-09 23:34 UTC (permalink / raw)
  To: linux-usb

https://bugzilla.kernel.org/show_bug.cgi?id=221861

--- Comment #2 from jayden.blain@gmail.com ---
Created attachment 310609
  --> https://bugzilla.kernel.org/attachment.cgi?id=310609&action=edit
lspci log

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* [Bug 221861] ucsi_acpi fails to probe on HP EliteBook X G1a (PNP0CA0/USBC000:00), USB-PD stuck at 100W SPR, cannot reach 140W EPR
  2026-08-09 23:33 [Bug 221861] New: ucsi_acpi fails to probe on HP EliteBook X G1a (PNP0CA0/USBC000:00), USB-PD stuck at 100W SPR, cannot reach 140W EPR bugzilla-daemon
  2026-08-09 23:33 ` [Bug 221861] " bugzilla-daemon
  2026-08-09 23:34 ` bugzilla-daemon
@ 2026-08-09 23:34 ` bugzilla-daemon
  2026-08-09 23:35 ` bugzilla-daemon
                   ` (2 subsequent siblings)
  5 siblings, 0 replies; 7+ messages in thread
From: bugzilla-daemon @ 2026-08-09 23:34 UTC (permalink / raw)
  To: linux-usb

https://bugzilla.kernel.org/show_bug.cgi?id=221861

--- Comment #3 from jayden.blain@gmail.com ---
Created attachment 310610
  --> https://bugzilla.kernel.org/attachment.cgi?id=310610&action=edit
lsusb log

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* [Bug 221861] ucsi_acpi fails to probe on HP EliteBook X G1a (PNP0CA0/USBC000:00), USB-PD stuck at 100W SPR, cannot reach 140W EPR
  2026-08-09 23:33 [Bug 221861] New: ucsi_acpi fails to probe on HP EliteBook X G1a (PNP0CA0/USBC000:00), USB-PD stuck at 100W SPR, cannot reach 140W EPR bugzilla-daemon
                   ` (2 preceding siblings ...)
  2026-08-09 23:34 ` bugzilla-daemon
@ 2026-08-09 23:35 ` bugzilla-daemon
  2026-08-09 23:36 ` bugzilla-daemon
  2026-08-09 23:47 ` bugzilla-daemon
  5 siblings, 0 replies; 7+ messages in thread
From: bugzilla-daemon @ 2026-08-09 23:35 UTC (permalink / raw)
  To: linux-usb

https://bugzilla.kernel.org/show_bug.cgi?id=221861

--- Comment #4 from jayden.blain@gmail.com ---
Created attachment 310611
  --> https://bugzilla.kernel.org/attachment.cgi?id=310611&action=edit
acpidump

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* [Bug 221861] ucsi_acpi fails to probe on HP EliteBook X G1a (PNP0CA0/USBC000:00), USB-PD stuck at 100W SPR, cannot reach 140W EPR
  2026-08-09 23:33 [Bug 221861] New: ucsi_acpi fails to probe on HP EliteBook X G1a (PNP0CA0/USBC000:00), USB-PD stuck at 100W SPR, cannot reach 140W EPR bugzilla-daemon
                   ` (3 preceding siblings ...)
  2026-08-09 23:35 ` bugzilla-daemon
@ 2026-08-09 23:36 ` bugzilla-daemon
  2026-08-09 23:47 ` bugzilla-daemon
  5 siblings, 0 replies; 7+ messages in thread
From: bugzilla-daemon @ 2026-08-09 23:36 UTC (permalink / raw)
  To: linux-usb

https://bugzilla.kernel.org/show_bug.cgi?id=221861

--- Comment #5 from jayden.blain@gmail.com ---
Created attachment 310612
  --> https://bugzilla.kernel.org/attachment.cgi?id=310612&action=edit
ssdt17 dsl

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* [Bug 221861] ucsi_acpi fails to probe on HP EliteBook X G1a (PNP0CA0/USBC000:00), USB-PD stuck at 100W SPR, cannot reach 140W EPR
  2026-08-09 23:33 [Bug 221861] New: ucsi_acpi fails to probe on HP EliteBook X G1a (PNP0CA0/USBC000:00), USB-PD stuck at 100W SPR, cannot reach 140W EPR bugzilla-daemon
                   ` (4 preceding siblings ...)
  2026-08-09 23:36 ` bugzilla-daemon
@ 2026-08-09 23:47 ` bugzilla-daemon
  5 siblings, 0 replies; 7+ messages in thread
From: bugzilla-daemon @ 2026-08-09 23:47 UTC (permalink / raw)
  To: linux-usb

https://bugzilla.kernel.org/show_bug.cgi?id=221861

--- Comment #6 from jayden.blain@gmail.com ---
Reproduces on stock Arch kernel 7.1.6-arch1-1 (not just CachyOS's patched
linux-cachyos build) — same symptom: ucsi_acpi loaded, device present, driver
never binds, zero dmesg output on both boot and manual bind attempt:
❯ uname -r
  lsmod | grep ucsi
  readlink /sys/bus/platform/devices/USBC000:00/driver
  sudo dmesg | grep -i ucsi
7.1.6-arch1-1
ucsi_acpi              12288  0
typec_ucsi             81920  1 ucsi_acpi
roles                  16384  1 typec_ucsi
typec                 135168  1 typec_ucsi
Place your right index finger on the fingerprint reader
Failed to match fingerprint
Place your right index finger on the fingerprint reader
[    0.008172] ACPI: SSDT 0x00000000491E0000 001A39 (v02 HP     UcsiAcpi
00000001 INTL 20200717)
[    0.008174] ACPI: SSDT 0x00000000491DF000 0000FB (v02 HP     UcsiCntr
00000001 INTL 20200717)

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end of thread, other threads:[~2026-08-09 23:47 UTC | newest]

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