Linux wireless drivers development
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From: William Hansen-Baird <william.hansen.baird@gmail.com>
To: pkshih@realtek.com
Cc: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org,
	William Hansen-Baird <william.hansen.baird@gmail.com>
Subject: [PATCH rtw-next 3/3] wifi: rtlwifi: disable ASPM for RTL8723BE with subsystem ID 17aa:b736
Date: Sun, 14 Jun 2026 15:55:08 +0200	[thread overview]
Message-ID: <20260614135508.70307-4-william.hansen.baird@gmail.com> (raw)
In-Reply-To: <20260614135508.70307-1-william.hansen.baird@gmail.com>

RTL8723BE outputs a large amount of PCIe AER errors during and
after boot, even before probe and when driver is never loaded.
This causes significant system slowdown.

The errors are the same as reported by 
commit 77a6407c6ab2 ("wifi: rtlwifi: disable ASPM for RTL8723BE with subsystem ID 11ad:1723")

Add the subsystem ID 17aa:b736 to the rtl8723be quirk table to stop
the AER errors. AER errors can still be present prior to pci probe, 
as the device by default may have ASPM enabled.

Testing on a Razer Blade 14 2017 which shipped from the
OEM equipped with an RTL8723BE card with this subsystem ID 
confirms that this patch resolves the AER flood and allows the
wireless card to function normally once the driver takes over.

Signed-off-by: William Hansen-Baird <william.hansen.baird@gmail.com>

---
 drivers/net/wireless/realtek/rtlwifi/pci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/realtek/rtlwifi/pci.c b/drivers/net/wireless/realtek/rtlwifi/pci.c
index 03b743809258..bbcd1922acb2 100644
--- a/drivers/net/wireless/realtek/rtlwifi/pci.c
+++ b/drivers/net/wireless/realtek/rtlwifi/pci.c
@@ -33,6 +33,7 @@ static const u8 ac_to_hwq[] = {
 
 static const struct pci_device_id rtl8723be_aspm_quirks[] = {
 	{ PCI_DEVICE_SUB(PCI_ANY_ID, PCI_ANY_ID, 0x11ad, 0x1723) },
+	{ PCI_DEVICE_SUB(PCI_ANY_ID, PCI_ANY_ID, 0x17aa, 0xb736) },
 	{ 0 }
 };
 
-- 
2.54.0


      parent reply	other threads:[~2026-06-14 13:55 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-14 13:55 [PATCH rtw-next 0/3] wifi: rtlwifi: fix ASPM AER flooding on RTL8723BE devices William Hansen-Baird
2026-06-14 13:55 ` [PATCH rtw-next 1/3] wifi: rtlwifi: fix disabling of ASPM for RTL8723BE with AER flooding William Hansen-Baird
2026-06-14 13:55 ` [PATCH rtw-next 2/3] wifi: rtlwifi: convert pci ID if-statement to table William Hansen-Baird
2026-06-14 13:55 ` William Hansen-Baird [this message]

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