Since the 3.18 merge window my wireless card cannot find any access point (tested with both NetworkManager and sudo /usr/sbin/iw dev wlp2s0 scan). More precisely, in 3.18-rc1 I got the oops described at http://marc.info/?l=linux-wireless&m=141324391807122&w=2. Sometime after rc1 Larry fixed this but when I tested again I found that scan doesn't work (tested 3.18-rc3 and just now 3.18-rc5). According to lspci -nn my hardware is: 02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter [10ec:8176] (rev 01) If I grep dmesg for rtl, for 3.17 which works I get: [ 31.208206] rtl8192ce:_rtl92ce_read_chip_version():<0-0> Chip Version ID: B_CHIP_88C [ 31.219973] rtl8192ce: Using firmware rtlwifi/rtl8192cfw.bin [ 31.861478] ieee80211 phy0: Selected rate control algorithm 'rtl_rc' [ 31.865655] rtlwifi: wireless switch is on [ 31.872019] rtl8192ce 0000:02:00.0 wlp2s0: renamed from wlan0 [ 41.428487] rtl8192ce 0000:02:00.0 wlp2s0: disabling HT as WMM/QoS is not supported by the AP [ 41.428499] rtl8192ce 0000:02:00.0 wlp2s0: disabling VHT as WMM/QoS is not supported by the AP 3.18 says: [ 29.213829] rtl8192ce:_rtl92ce_read_chip_version():<0-0> Chip Version ID: B_CHIP_88C [ 29.230599] rtl8192ce: Using firmware rtlwifi/rtl8192cfw.bin [ 29.330232] ieee80211 phy0: Selected rate control algorithm 'rtl_rc' [ 29.332250] rtlwifi: rtlwifi: wireless switch is on [ 29.339416] rtl8192ce 0000:02:00.0 wlp2s0: renamed from wlan0 [ 344.942070] rtl8192ce:rtl92ce_get_hw_reg():<0-0> switch case not processed I added some debug prints and the last line comes from core.c, rtl_op_stop which calls get_hw_reg with HAL_DEF_WOWLAN. This happens indeed when I untick Enable wireless in NetworkManager. I assume it's not related to the more serious scan issue. How can I help with debugging this? -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
