Today I received my new R7800. Flashed 18.06.2 on it. Works as expected. Only downside is that the two wifi leds (2.4 and 5 GHz) aren't working. There is no configuration for them in Luci.
The LED for ath10k was introduced after the 18.06 branching and has not been backported from master to 18.06. You need to patch the source code and compile OpenWrt.
(or you could flash my R7800 community build, which includes the necessary patch)
The needed patch for 18.06 that patches several source code files is:
diff --git a/package/kernel/mac80211/Makefile b/package/kernel/mac80211/Makefile
index f091199864..3fe9e569be 100644
--- a/package/kernel/mac80211/Makefile
+++ b/package/kernel/mac80211/Makefile
@@ -75,6 +75,7 @@ PKG_CONFIG_DEPENDS:= \
CONFIG_PACKAGE_RTLWIFI_DEBUG \
CONFIG_ATH9K_SUPPORT_PCOEM \
CONFIG_ATH9K_TX99 \
+ CONFIG_ATH10K_LEDS \
CONFIG_ATH_USER_REGD \
include $(INCLUDE_DIR)/package.mk
@@ -350,6 +351,14 @@ Atheros IEEE 802.11ac family of chipsets. For now only
PCI is supported.
endef
+define KernelPackage/ath10k/config
+
+ config ATH10K_LEDS
+ bool "Enable LED support"
+ default y
+ depends on PACKAGE_kmod-ath10k
+endef
+
#Broadcom firmware
ifneq ($(CONFIG_B43_FW_6_30),)
PKG_B43_FWV4_NAME:=broadcom-wl
@@ -1636,6 +1645,7 @@ config-$(CONFIG_ATH_USER_REGD) += ATH_USER_REGD
config-$(CONFIG_ATH9K_SUPPORT_PCOEM) += ATH9K_PCOEM
config-$(CONFIG_ATH9K_TX99) += ATH9K_TX99
config-$(CONFIG_ATH9K_UBNTHSR) += ATH9K_UBNTHSR
+config-$(CONFIG_ATH10K_LEDS) += ATH10K_LEDS
config-$(call config_package,ath9k-htc) += ATH9K_HTC
config-$(call config_package,ath10k) += ATH10K ATH10K_PCI
diff --git a/package/kernel/mac80211/patches/975-ath10k-use-tpt-trigger-by-default.patch b/package/kernel/mac80211/patches/975-ath10k-use-tpt-trigger-by-default.patch
new file mode 100644
index 0000000000..2b34b70661
--- /dev/null
+++ b/package/kernel/mac80211/patches/975-ath10k-use-tpt-trigger-by-default.patch
@@ -0,0 +1,53 @@
+From 79c9d7aabae1d1da9eea97d83b61e1517a8a2221 Mon Sep 17 00:00:00 2001
+From: Mathias Kresin <dev@kresin.me>
+Date: Fri, 22 Jun 2018 18:59:44 +0200
+Subject: [PATCH] ath10k: use tpt LED trigger by default
+
+Use the tpt LED trigger for each created phy led. Ths way LEDs attached
+to the ath10k GPIO pins are indicating the phy status and blink on
+traffic.
+
+Signed-off-by: Mathias Kresin <dev@kresin.me>
+---
+ drivers/net/wireless/ath/ath10k/core.h | 4 ++++
+ drivers/net/wireless/ath/ath10k/leds.c | 4 +---
+ drivers/net/wireless/ath/ath10k/mac.c | 2 +-
+ 3 files changed, 6 insertions(+), 4 deletions(-)
+
+--- a/drivers/net/wireless/ath/ath10k/core.h
++++ b/drivers/net/wireless/ath/ath10k/core.h
+@@ -1010,6 +1010,10 @@ struct ath10k {
+
+ void *ce_priv;
+
++#ifdef CPTCFG_MAC80211_LEDS
++ const char *led_default_trigger;
++#endif
++
+ /* must be last */
+ u8 drv_priv[0] __aligned(sizeof(void *));
+ };
+--- a/drivers/net/wireless/ath/ath10k/leds.c
++++ b/drivers/net/wireless/ath/ath10k/leds.c
+@@ -81,9 +81,7 @@ int ath10k_leds_register(struct ath10k *
+
+ ar->leds.cdev.name = ar->leds.label;
+ ar->leds.cdev.brightness_set_blocking = ath10k_leds_set_brightness_blocking;
+-
+- /* FIXME: this assignment doesn't make sense as it's NULL, remove it? */
+- ar->leds.cdev.default_trigger = ar->leds.wifi_led.default_trigger;
++ ar->leds.cdev.default_trigger = ar->led_default_trigger;
+
+ ret = led_classdev_register(wiphy_dev(ar->hw->wiphy), &ar->leds.cdev);
+ if (ret)
+--- a/drivers/net/wireless/ath/ath10k/mac.c
++++ b/drivers/net/wireless/ath/ath10k/mac.c
+@@ -8366,7 +8366,7 @@ int ath10k_mac_register(struct ath10k *a
+ wiphy_ext_feature_set(ar->hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
+
+ #ifdef CPTCFG_MAC80211_LEDS
+- ieee80211_create_tpt_led_trigger(ar->hw,
++ ar->led_default_trigger = ieee80211_create_tpt_led_trigger(ar->hw,
+ IEEE80211_TPT_LEDTRIG_FL_RADIO, ath10k_tpt_blink,
+ ARRAY_SIZE(ath10k_tpt_blink));
+ #endif
Or alternatively you can follow the alternative advice from me found in the other thread that you referenced. But also that requires patching and compiling.
@tmomas and @hnyman; thanks for your suggestions but as i stated "i'm a noob" on this. Compiling my own build is at this point in time a bridge to far.
I will however try the @hnyman community build.
To upgrade from the current 18.06.2 to 19.07 I would need this file as it is an upgrade?