Hi, We have an ASUS X530UN (Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz) laptop equipped with Realtek rtl8822be wireless which cannot find any access point after WiFi is launched. Realtek rtl8822be wireless' information: dev@endless:~/linux-eos$ sudo lspci -nnvs 02:00.0 02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:b822] (rev ff) (prog-if ff) !!! Unknown header type 7f Kernel driver in use: r8822be Kernel modules: r8822be System always hits the error: "halmac_init_hal failed" in dmesg after WiFi is launched. [ 8.591333] r8822be: module is from the staging directory, the quality is unknown, you have been warned. [ 8.593122] r8822be 0000:02:00.0: enabling device (0000 -> 0003) [ 8.669163] r8822be: Using firmware rtlwifi/rtl8822befw.bin [ 9.289939] r8822be: rtlwifi: wireless switch is on [ 10.056426] r8822be 0000:02:00.0 wlp2s0: renamed from wlan0 ... [ 11.952534] r8822be: halmac_init_hal failed [ 11.955933] r8822be: halmac_init_hal failed [ 11.956227] r8822be: halmac_init_hal failed [ 22.007942] r8822be: halmac_init_hal failed We noticed the r8822be module parameter "aspm"'s default value is 1. Here is the parameter list of r8822be: dev@endless:~$ sudo grep "" /sys/module/r8822be/parameters/* /sys/module/r8822be/parameters/aspm:1 /sys/module/r8822be/parameters/debug_level:0 /sys/module/r8822be/parameters/debug_mask:0 /sys/module/r8822be/parameters/disable_watchdog:N /sys/module/r8822be/parameters/dma64:N /sys/module/r8822be/parameters/fwlps:Y /sys/module/r8822be/parameters/ips:Y /sys/module/r8822be/parameters/msi:Y /sys/module/r8822be/parameters/swenc:N /sys/module/r8822be/parameters/swlps:N If I make a module options like "options r8822be aspm=0" which disables ASPM and reboot, the WiFi works correctly. It can find the access points, then connects. Here is the parameter list of r8822be: dev@endless:~$ sudo grep "" /sys/module/r8822be/parameters/* /sys/module/r8822be/parameters/aspm:0 /sys/module/r8822be/parameters/debug_level:0 /sys/module/r8822be/parameters/debug_mask:0 /sys/module/r8822be/parameters/disable_watchdog:N /sys/module/r8822be/parameters/dma64:N /sys/module/r8822be/parameters/fwlps:Y /sys/module/r8822be/parameters/ips:Y /sys/module/r8822be/parameters/msi:Y /sys/module/r8822be/parameters/swenc:N /sys/module/r8822be/parameters/swlps:N This issue can be reproduced on Linux stable 4.16.17, 4.17.2 and 4.18.0-rc3. (I list versions that we have tried) Besides, I also notice there is a comment in drivers/staging/rtlwifi/rtl8822be/sw.c rtl8822be_init_aspm_vars function. /* * This setting works for those device with * backdoor ASPM setting such as EPHY setting. * 0 - Not support ASPM, * 1 - Support ASPM, * 2 - According to chipset. */ The value 2 for ASPM interests me. It says "Enable or disable ASPM according to chipset." I tried the setting value 2 for ASPM. Here is the parameter list of r8822be: dev@endless:~$ sudo grep "" /sys/module/r8822be/parameters/* /sys/module/r8822be/parameters/aspm:2 /sys/module/r8822be/parameters/debug_level:0 /sys/module/r8822be/parameters/debug_mask:0 /sys/module/r8822be/parameters/disable_watchdog:N /sys/module/r8822be/parameters/dma64:N /sys/module/r8822be/parameters/fwlps:Y /sys/module/r8822be/parameters/ips:Y /sys/module/r8822be/parameters/msi:Y /sys/module/r8822be/parameters/swenc:N /sys/module/r8822be/parameters/swlps:N The value 2 for ASPM also works correctly on ASUS X530UN. Jian-Hong Pan _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
