problem realtek 8723 driver

[chili555]

Awesome! Glad it's working. Have fun.

[rob62]

On Ubuntu 12.04 I've managed to make and install the RTL8723e drivers in 8723AE_8723AU_Linux_support_0419.tar.gz and rtl_92ce_92se_92de_8723ae_linux_mac80211_0006.0514 .2012.tar.gz.

However the wireless networking still fails to work.
Boot.log contains the following related entries:

[ 15.487227] usbcore: registered new interface driver btusb
[ 15.489817] rtl8723e: disagrees about version of symbol efuse_read_1byte
[ 15.489820] rtl8723e: Unknown symbol efuse_read_1byte (err -22)
[ 15.489831] rtl8723e: Unknown symbol rtl_process_phyinfo (err 0)
[ 15.489834] rtl8723e: disagrees about version of symbol rtl_cam_reset_all_entry
[ 15.489836] rtl8723e: Unknown symbol rtl_cam_reset_all_entry (err -22)
[ 15.489841] rtl8723e: disagrees about version of symbol rtl_cam_empty_entry
[ 15.489843] rtl8723e: Unknown symbol rtl_cam_empty_entry (err -22)
[ 15.489845] rtl8723e: disagrees about version of symbol rtl_cam_del_entry
[ 15.489847] rtl8723e: Unknown symbol rtl_cam_del_entry (err -22)
[ 15.489851] rtl8723e: disagrees about version of symbol rtl_cam_mark_invalid
[ 15.489853] rtl8723e: Unknown symbol rtl_cam_mark_invalid (err -22)
[ 15.489861] rtl8723e: disagrees about version of symbol ieee80211_find_sta
[ 15.489862] rtl8723e: Unknown symbol ieee80211_find_sta (err -22)
[ 15.489866] rtl8723e: disagrees about version of symbol rtl_pci_disconnect
[ 15.489868] rtl8723e: Unknown symbol rtl_pci_disconnect (err -22)
[ 15.489870] rtl8723e: disagrees about version of symbol rtl_pci_suspend
[ 15.489872] rtl8723e: Unknown symbol rtl_pci_suspend (err -22)
[ 15.489878] rtl8723e: Unknown symbol rtl_signal_scale_mapping (err 0)
[ 15.489886] rtl8723e: disagrees about version of symbol rtl_ps_enable_nic
[ 15.489888] rtl8723e: Unknown symbol rtl_ps_enable_nic (err -22)
[ 15.489890] rtl8723e: disagrees about version of symbol rtl_pci_resume
[ 15.489892] rtl8723e: Unknown symbol rtl_pci_resume (err -22)
[ 15.489897] rtl8723e: Unknown symbol rtl_evm_db_to_percentage (err 0)
[ 15.489901] rtl8723e: disagrees about version of symbol rtl_cam_add_one_entry
[ 15.489902] rtl8723e: Unknown symbol rtl_cam_add_one_entry (err -22)
[ 15.489908] rtl8723e: Unknown symbol rtl_query_rxpwrpercentage (err 0)
[ 15.489911] rtl8723e: disagrees about version of symbol rtl_efuse_shadow_map_update
[ 15.489913] rtl8723e: Unknown symbol rtl_efuse_shadow_map_update (err -22)
[ 15.489915] rtl8723e: disagrees about version of symbol rtl_get_tcb_desc
[ 15.489917] rtl8723e: Unknown symbol rtl_get_tcb_desc (err -22)
[ 15.489919] rtl8723e: disagrees about version of symbol rtl_ps_disable_nic
[ 15.489920] rtl8723e: Unknown symbol rtl_ps_disable_nic (err -22)
[ 15.489925] rtl8723e: disagrees about version of symbol rtl_cam_get_free_entry
[ 15.489927] rtl8723e: Unknown symbol rtl_cam_get_free_entry (err -22)
[ 15.489929] rtl8723e: disagrees about version of symbol rtl_pci_probe
[ 15.489930] rtl8723e: Unknown symbol rtl_pci_probe (err -22)
[ 15.489933] rtl8723e: disagrees about version of symbol rtl_cam_delete_one_entry
[ 15.489935] rtl8723e: Unknown symbol rtl_cam_delete_one_entry (err -22)

[chili555]

On Ubuntu 12.04 I've managed to make and install the RTL8723e drivers in 8723AE_8723AU_Linux_support_0419.tar.gz and rtl_92ce_92se_92de_8723ae_linux_mac80211_0006.0514 .2012.tar.gz.

Why both? You should only need the second one.

Please try again:

cd Desktop/rtl_92ce_92se_92de_8723ae_linux_mac80211_0006.0514.2012  <--or wherever you extracted the files
sudo su
make clean
make
make install
exit

Any errors?

[rob62]

Thanks for the quick response, Chili555.

I did as suggested but still get the very same error.
The error does not present in /var/log/boot.log, but in /var/log/dmesg.

[chili555]

Do you have linux-backports-modules-cw installed? On my test mule, I get the same error with cw installed but it loads without drama after I removed it. Please remove it and reboot; then reload rtl8723e and let me have your report tomorrow.

Don't ask me how I know this. I need to get a real life!

[rob62]

Thanks again for the advice chili555.

Unfortunately I don't have linux-backports-modules-cw installed.

[chili555]

Let's see:

lsb_release -d
arch
lsusb

Thanks.

[rob62]

Hi chili555

I've got a clean 12.04 install with the network driver installed and working, but wireless realtek 8723e installed but not working.

Additional Drivers shows Qualcomm Atheros Gigabit Ethernet Driver activated and currently in use, but Realtek 8723e 802.11n PCI wireless activated but not currently in use.

Here is the requested output:

robin@robin-comp:~$ lsb_release -d
Description: Ubuntu 12.04 LTS

robin@robin-comp:~$ arch
x86_64

robin@robin-comp:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 003 Device 002: ID 046d:c50d Logitech, Inc. Cordless Mouse
Bus 003 Device 003: ID 045e:0750 Microsoft Corp. Wired Keyboard 600
Bus 001 Device 003: ID 0930:021d Toshiba Corp.
Bus 001 Device 004: ID 10f1:1a43 Importek
Bus 001 Device 005: ID 1164:1ee9 YUAN High-Tech Development Co., Ltd

Thanks,
Robin

[chili555]

robin@robin-comp:~$ arch
x86_64

I don't think the driver was written for 64-bit. You could email Realtek:

description: Realtek 8723E 802.11n PCI wireless
license: GPL
author: Realtek WlanFAE <wlanfae@realtek.com>
author: lizhaoming <chaoming_li@realsil.com.cn>

Or you could try a 32-bit live CD and see if it compiles and loads without error, as I am confident it will.

If you have more than 2 Gb of RAM, as most of us do, it will be recognized with a 32-bit pae kernel. From my machine:

chili@LAPTOP60:~$ free
total used free shared buffers cached
Mem: 3914384 3558076 356308 0 280312 2503648
-/+ buffers/cache: 774116 3140268
Swap: 6914044 7112 6906932
chili@LAPTOP60:~$ uname -r
3.2.0-26-generic-pae
chili@LAPTOP60:~$ arch
i686

[rob62]

Thanks chili555,

I've taken your advice and emailed the authors of the driver package the relevant information.

I'll test 32bit Ubuntu 12.04 LTS later today when I get a chance and get back to you.

Much appreciated,
Robin