2017-11-21 22:30 keltezéssel, James Cameron írta: > On Tue, Nov 21, 2017 at 09:52:12PM +0100, Rákosi Gergely wrote: >> 2017-11-21 21:37 keltezéssel, James Cameron írta: >>> On Tue, Nov 21, 2017 at 03:08:16PM +0100, Rákosi Gergely wrote: >>>> 2017-11-18 16:52 keltezéssel, Larry Finger írta: >>>>> On 11/17/2017 06:22 PM, Rákosi Gergely wrote: >>>>>> Hello Larry, >>>>>> >>>>>> First of all, thanks your help. >>>>>> Lets see...here is the kernel version: 4.13.12-300 >>>>>> The machine is an Asus ROG 553VE >>>>>> >>>>>> The firmware which loading in the dmesg is : rtlwifi/rtl8723befw_36.bin >>>>>> The output of md5sum is : 1850c1308fbcd95e9f6a7f58ede1e35f >>>>> [...] >>>>> sudo iw dev wlan0 scan | egrep "SSID|signal" >>>>> >>>>> Post that output. In addition, copy the dmesg output to some pastebin >>>>> and post the link as well. >>>>> >>>>> Larry >>>>> >>>> Hello Larry, >>>> >>>> I hope this email post format is good, and fit to the rules. >>>> Here is the output: >>>> >>>> root@skynet-x2 ~]# iw dev wlp2s0 scan | egrep "SSID|signal" >>>> signal: -46.00 dBm >>>> SSID: SKYNET-X2 >>>> [...] >>>> [root@skynet-x2 ~]# >>> Scan results seem normal. Was this scan before disconnect? >> Yes, this command output taken while the connection was OK > Thanks. > >>>> And the dmesg output: >>>> >>>> https://pastebin.com/iqQSu2hD >>> Is now v4.13.13. >> Yes, thats the upgraded kernel >> >>> This is interesting, an H2C command was dropped, but no idea which. >>> >>> [ 9.848052] rtl8723be: error H2C cmd because of Fw download fail!!! >>> >>> Disconnection happened at boot+440 seconds, associate+429 seconds; >>> >>> [ 439.871033] rtlwifi: AP off, try to reconnect now >>> [ 439.871093] wlp2s0: Connection to AP 4c:5e:0c:c7:fa:e3 lost >>> >>> I cannot tell what causes disconnect. I wonder if the same >>> timing of the problem happens always, or if the timing varies. >> The timing always changing, never is the same. And I dont realize >> the cause at now... > Thanks. I had similar problem with different wireless device. > >>> Init MAC failed was another 30 seconds later; >>> >>> [ 468.600670] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready >>> [ 469.618926] rtl8723be: Init MAC failed >>> >>> Looking at _rtl8723be_init_mac, there are two false returns; >>> hardware power on fail, and llt write fail. >>> >>> Sorry, I don't have rtl8723be hardware. >>> >>> Rákosi, did any older kernel keep connection? >> The oldest kernel is 4.13.9-300.fc27.x86_64 in Fedora 27 >> installation, but did the same. If you can give advise how, and >> what I do, then I'll try it. > You might try running "Live CD" of Fedora 26 or Fedora 25, without > installing, to test if unexpected disconnection happens in two older > kernels. Not for permanent solution, just for easy testing. > > I don't have specific advice for Fedora 27, you might ask Fedora > community about that, or use RHBZ. A quick search finds this old 2013 > page; > > https://fedoraproject.org/wiki/User:Ignatenkobrain/Kernel/Bisection > And now the wireless is working almost 20 hours long, from yesterday afternoon. I dont know why. Lets check some happening: - Yesterday I disconnect the charger from laptop, and lay down at the other room - I left the laptop more than a hour without interaction, so the system is going to sleep - When I push the keyboard the system load up, and everything is working fine - The battery almost depleted when I going back to the original room, and connect the charger Then nothing changed, and I have a working rtl8723be wifi module. Why ? Thanks, Gergely
