Brightness control non-functional in Hybrid mode — HP OMEN 16-am0015ns (Arrow Lake-P + RTX 5060 Max-Q, WMI GUID absent)

<h2 class="text-text-100 mt-3 -mb-1 text-[1.375rem] font-bold">Brightness control non-functional in Hybrid/Optimus mode — HP OMEN Gaming Laptop 16-am0015ns (Intel Arrow Lake-P + RTX 5060 Max-Q)</h2>
<h3 class="text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold">Summary</h3>
<p class="font-claude-response-body break-words whitespace-normal">On an HP OMEN Gaming Laptop 16-am0015ns with Intel Arrow Lake-P iGPU and NVIDIA RTX 5060 Max-Q dGPU, panel backlight cannot be adjusted from Linux in Hybrid/Optimus mode. Brightness keys, GUI sliders, and direct sysfs writes all have no visible effect on the panel.</p>
<p class="font-claude-response-body break-words whitespace-normal">This appears to be related to <strong>bug #221530 on kernel bugzilla</strong> (HP OMEN MAX 16-ah0xxx, Arrow Lake + RTX 5080) and <strong>github.com/NVIDIA/open-gpu-kernel-modules/issues/1087</strong>.</p>
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<h3 class="text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold">System Information</h3>
<div class="overflow-x-auto w-full px-2 mb-6">
Field | Value
-- | --
Laptop Model | HP OMEN Gaming Laptop 16-am0015ns
SKU | BP4Q7EA#ABE
Board | HP 8D2F, version 75.54
BIOS | AMI F.14, released 04/14/2026 — latest available
iGPU | Intel Arrow Lake-P [Arc Pro 130T/140T] 8086:7d51 rev 03 — 0000:00:02.0
dGPU | NVIDIA GeForce RTX 5060 Max-Q / Mobile (GB206M) 10de:2d19 rev a1 — 0000:01:00.0
NVIDIA driver | 595.80
Kernel | 7.0.12-201.fc44.x86_64
Distribution | Fedora 44 KDE Plasma
Session type | Wayland
Display panel | BOE, Product code 0x0CF1, manufactured 2024 week 13

</div>
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<h3 class="text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold">Questions for NVIDIA</h3>
<ol class="[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-decimal flex flex-col gap-1 pl-8 mb-3">
<li class="font-claude-response-body whitespace-normal break-words pl-2">Is there an alternative WMI GUID or EC path for brightness control on HP OMEN 16-am0015ns (board HP 8D2F) that <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-[0.4rem] px-1 py-px text-[0.9rem]">nvidia_wmi_ec_backlight</code> should support?</li>
<li class="font-claude-response-body whitespace-normal break-words pl-2">Should the NVIDIA proprietary driver handle brightness via the <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-[0.4rem] px-1 py-px text-[0.9rem]">_BCM</code> method under <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-[0.4rem] px-1 py-px text-[0.9rem]">PEGB/PEGE/DEDP</code> in the DSDT, given that this method writes to the Intel IGD OpRegion?</li>
<li class="font-claude-response-body whitespace-normal break-words pl-2">Can a DMI quirk be added for this hardware to route brightness control correctly?</li>
</ol>
<p class="font-claude-response-body break-words whitespace-normal">I am happy to test patches and provide additional logs (full dmesg, acpidump output, disassembled DSDT) on request.</p>
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<h3 class="text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold">Related Issues</h3>
<ul class="[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3">
<li class="font-claude-response-body whitespace-normal break-words pl-2">Kernel bugzilla <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-[0.4rem] px-1 py-px text-[0.9rem] inline-flex items-center h-5"><span class="inline-block w-3 h-3 border-[0.5px] border-border-200 rounded-[4px] flex-shrink-0 shadow-sm mr-1 align-middle" style="background-color: rgb(34, 21, 48);"></span>#221530</code>: <a class="underline underline underline-offset-2 decoration-1 decoration-current/40 hover:decoration-current focus:decoration-current" href="https://bugzilla.kernel.org/show_bug.cgi?id=221530">https://bugzilla.kernel.org/show_bug.cgi?id=221530</a> (HP OMEN MAX 16-ah0xxx, same symptom, Arrow Lake + RTX 5080)</li>
<li class="font-claude-response-body whitespace-normal break-words pl-2">NVIDIA open-gpu-kernel-modules #1087: <a class="underline underline underline-offset-2 decoration-1 decoration-current/40 hover:decoration-current focus:decoration-current" href="https://github.com/NVIDIA/open-gpu-kernel-modules/issues/1087">https://github.com/NVIDIA/open-gpu-kernel-modules/issues/1087</a></li>
</ul>


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Brightness control non-functional in Hybrid mode — HP OMEN 16-am0015ns (Arrow Lake-P + RTX 5060 Max-Q, WMI GUID absent) #1202

Brightness control non-functional in Hybrid/Optimus mode — HP OMEN Gaming Laptop 16-am0015ns (Intel Arrow Lake-P + RTX 5060 Max-Q)

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Brightness control non-functional in Hybrid mode — HP OMEN 16-am0015ns (Arrow Lake-P + RTX 5060 Max-Q, WMI GUID absent) #1202

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Brightness control non-functional in Hybrid/Optimus mode — HP OMEN Gaming Laptop 16-am0015ns (Intel Arrow Lake-P + RTX 5060 Max-Q)

Summary

System Information

Questions for NVIDIA

Related Issues

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Metadata

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Fields

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