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cfaulkner70
n00b
Joined: 12 Feb 2015
Posts: 6
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 Posted: Thu Feb 12, 2015 7:59 pm Post subject: [SOLVED] RTL8723BE Wifi problems |
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Gentoo x64 running on a Lenovo G50-45 Laptop
uname -a
| Code: | | Linux HAL-9001 3.17.8-gentoo-r1 #7 SMP Wed Feb 11 21:37:34 CST 2015 x86_64 AMD A6-6310 APU with AMD Radeon R4 Graphics AuthenticAMD GNU/Linux |
Enabled the RTL8723BE driver in the kernel (not as a module)
sys-kernel/linux-firmware v20141009 and v20140902 tried, no luck
lspci -k
| Code: | 01:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
Subsystem: Lenovo Device b736
Kernel driver in use: rtl8723be |
dmesg | grep 8723
| Code: | [ 0.773807] rtl8723be: Using firmware rtlwifi/rtl8723befw.bin
[ 0.773912] rtl8723be 0000:01:00.0: Direct firmware load for rtlwifi/rtl8723befw.bin failed with error -2
[ 0.774039] rtlwifi: Firmware rtlwifi/rtl8723befw.bin not available |
locate rtl8723befw.bin
| Code: | | /lib64/firmware/rtlwifi/rtl8723befw.bin |
Anything i'm missing?
Last edited by cfaulkner70 on Thu Feb 12, 2015 10:10 pm; edited 1 time in total |
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Roman_Gruber
Advocate
Joined: 03 Oct 2006
Posts: 3846
Location: Austro Bavaria
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| Posted: Thu Feb 12, 2015 8:09 pm Post subject: |
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maybe worth to dig in the kernel source and check out what*s happening
| Code: |
[ 0.773912] rtl8723be 0000:01:00.0: Direct firmware load for rtlwifi/rtl8723befw.bin failed with error -2 |
or use another branch of the kernel itself. I highly recommend to stick to a stable long term release like 3.10 from kernel.org => 3.10.XX gentoo-sources....
You narrowed it down, But i would suggest you dig in the source and check waht that error code really does and therefore you will see than if teh module is on the right spot.
and sometimes just using a newly build fresh kernel with another version string magically solves problems. |
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cfaulkner70
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Joined: 12 Feb 2015
Posts: 6
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| Posted: Thu Feb 12, 2015 8:11 pm Post subject: |
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| tw04l124 wrote: | maybe worth to dig in the kernel source and check out what*s happening
| Code: |
[ 0.773912] rtl8723be 0000:01:00.0: Direct firmware load for rtlwifi/rtl8723befw.bin failed with error -2 |
or use another branch of the kernel itself. I highly recommend to stick to a stable long term release like 3.10 from kernel.org => 3.10.XX gentoo-sources....
You narrowed it down, But i would suggest you dig in the source and check waht that error code really does and therefore you will see than if teh module is on the right spot.
and sometimes just using a newly build fresh kernel with another version string magically solves problems. |
Thanks tw! |
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cfaulkner70
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Joined: 12 Feb 2015
Posts: 6
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| Posted: Thu Feb 12, 2015 8:14 pm Post subject: |
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| I do have a hunch that it is because the driver is not built as a module and instead built-in. |
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cfaulkner70
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Joined: 12 Feb 2015
Posts: 6
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| Posted: Thu Feb 12, 2015 9:14 pm Post subject: |
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| recompiling the kernel now making the rtl8723be driver a module instead of built in. |
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cfaulkner70
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Joined: 12 Feb 2015
Posts: 6
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| Posted: Thu Feb 12, 2015 9:54 pm Post subject: |
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I do believe that's what it was.. I compiled the 8723be as a module and here's what I got now
dmesg | grep 8723
| Code: | [ 0.458723] pci 0000:00:01.1: supports D1 D2
[ 5.654792] rtl8723be: Using firmware rtlwifi/rtl8723befw.bin
[ 5.977875] rtl8723be 0000:01:00.0 wlp1s0: renamed from wlan0 |
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chithanh
Developer
Joined: 05 Aug 2006
Posts: 2158
Location: Berlin, Germany
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| Posted: Fri Feb 13, 2015 8:15 am Post subject: |
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If you build the driver into the kernel, you often need to build the firmware into the kernel too:
| Code: | CONFIG_EXTRA_FIRMWARE_DIR="/lib/firmware/"
CONFIG_EXTRA_FIRMWARE="rtlwifi/rtl8723befw.bin" |
would allow you to make rtl8723be built-in again. |
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cfaulkner70
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Joined: 12 Feb 2015
Posts: 6
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| Posted: Fri Feb 13, 2015 3:43 pm Post subject: |
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| chithanh wrote: | If you build the driver into the kernel, you often need to build the firmware into the kernel too:
| Code: | CONFIG_EXTRA_FIRMWARE_DIR="/lib/firmware/"
CONFIG_EXTRA_FIRMWARE="rtlwifi/rtl8723befw.bin" |
would allow you to make rtl8723be built-in again. |
Nice! Thank you! Learn something new all the time..  |
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mroutput
n00b
Joined: 21 Oct 2016
Posts: 11
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| Posted: Fri Oct 21, 2016 2:11 am Post subject: thank you! |
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| chithanh wrote: | If you build the driver into the kernel, you often need to build the firmware into the kernel too:
| Code: | CONFIG_EXTRA_FIRMWARE_DIR="/lib/firmware/"
CONFIG_EXTRA_FIRMWARE="rtlwifi/rtl8723befw.bin" |
would allow you to make rtl8723be built-in again. |
thank you very much! I wonder can I load microcode through there as well? |
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