Hardware platform: Chuwi Hi12 (intell baytrail tablet) On Linux kernels 4.12 and 4.13 the WiFi does work, starting from 4.14 not release builds it does not, including some dily builds of the times somewhere near rc1, the rc3 release and the letest daily build of the code state for 2017-10-04 http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/2017-10-05/ I will provide logs from 4.14 a bit later, bello are LOGS FROM 4.13.1 with working WiFi Full information on hardware and logs (including full dmesg) are here: https://linux-hardware.org/index.php?probe=01521aa6cf (kernel 4.13 and working wifi) $ dmesg | grep rtl [ 7.899105] RTL8723BS: rtl8723bs v4.3.5.5_12290.20140916_BTCOEX20140507-4E40 [ 7.899106] RTL8723BS: rtl8723bs BT-Coex version = BTCOEX20140507-4E40 [ 10.570755] rtl8723bs: acquire FW from file:rtlwifi/rtl8723bs_nic.bin
Logs from 4.14 with WiFi not working: https://linux-hardware.org/index.php?probe=5c7b00c4cb
Seeing a similar problem here with an Intel 8265 chipset. I've found that if I disable bluetooth then wifi starts working (and visa versa). More details from me here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1721271
FWIW: Some subsystem maintainers do not watch bugzilla.kernel.org closely or ignore it on purpose (some of the network developers fall into this category afaik). Hence you might have better luck reporting the problems to the netdev mailing list. You also might want to check the archives at http://www.spinics.net/lists/netdev/, maybe someone else stumbled about this and people are working on a fix. Also note there were a few fixes to the network code in linux-master on 2017-10-05, hence you might want to recheck if those maybe fixed your problem (Linux 4.14-rc4 will likely get released a few in the next 12 to 16 hours).
sorry for misinforming, it's CherryTrail but not Byatrail, I've tested the yesterday daily build , it still does not work, I've writter to the netdev ml by sending an email to netdev@vger.kernel.org, I'm not sure wether it will reach the mailing list or not
Hi *, My Dell XPS 13 9365 also stopped connecting to the network by wifi. Wifi-chipset is an Intel 8265. The last working Kernel is 4.14rc1. So also with 4.14rc5 wifi is not working. How can I help to debug this? Best regards Axel
Please try switching off apparmor: sudo systemctl stop apparmor (sudo systemctl disable apparmor) If the WiFi starts working after this, than it is probably this bug: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1724450 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=877581 https://www.phoronix.com/scan.php?page=news_item&px=AppArmor-Linux-4.14
(In reply to Mikhail Novosyolov from comment #6) > Please try switching off apparmor: > sudo systemctl stop apparmor (sudo systemctl disable apparmor) > > If the WiFi starts working after this, than it is probably this bug: > https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1724450 > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=877581 > https://www.phoronix.com/scan.php?page=news_item&px=AppArmor-Linux-4.14 Thank you, Mikhail! That's exactly the case. Disabling Apparmor brings the Wifi back in my sessions. So it has nothing to do with the wifi-hardware.