当启动 Debian 9.5 我的笔记本电脑时，Acer Aspire E5 - 573G 在登录屏幕出现之前会休眠几分钟。它在以下几行之后停止：
[ 10.686470] ath10k_pci 0000:03:00.0: firmware: failed to load ath10k/pre-cal-pci-0000:03:00.0.bin (-2)
[ 10.686471] firmware_class: See https://wiki.debian.org/Firmware for information about missing firmware
[ 10.686483] ath10k_pci 0000:03:00.0: firmware: failed to load ath10k/cal-pci-0000:03:00.0.bin (-2)
[ 10.697700] ath10k_pci 0000:03:00.0: firmware: failed to load ath10k/QCA9377/hw1.0/firmware-6.bin (-2)
[ 10.769505] ath10k_pci 0000:03:00.0: firmware: direct-loading firmware ath10k/QCA9377/hw1.0/firmware-5.bin
[ 10.769516] ath10k_pci 0000:03:00.0: qca9377 hw1.0 target 0x05020000 chip_id 0x003820ff sub 11ad:0806
[ 10.769519] ath10k_pci 0000:03:00.0: kconfig debug 0 debugfs 0 tracing 0 dfs 0 testmode 0
[ 10.770353] ath10k_pci 0000:03:00.0: firmware ver WLAN.TF.1.0-00267-1 api 5 features ignore-otp crc32 79cea2c7
[ 10.889620] ath10k_pci 0000:03:00.0: firmware: direct-loading firmware ath10k/QCA9377/hw1.0/board-2.bin
[ 10.890373] ath10k_pci 0000:03:00.0: board_file api 2 bmi_id N/A crc32 93da0176
我可以看到输出有延迟dmesg：
[ 29.927760] r8169 0000:02:00.0: firmware: direct-loading firmware rtl_nic/rtl8168h-2.fw
[ 29.978604] r8169 0000:02:00.0 enp2s0: link down
[ 29.978711] IPv6: ADDRCONF(NETDEV_UP): enp2s0: link is not ready
[ 30.056531] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
[ 31.986034] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
[ 33.921973] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
[ 34.250085] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
[ 309.280237] random: crng init done
这里还有另一个延迟：
[ 413.201803] kauditd_printk_skb: 11 callbacks suppressed
[ 413.201804] audit: type=1400 audit(1544884039.293:23): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld-akonadi///usr/sbin/mysqld" name="/etc/mysql/mariadb.cnf" pid=1737 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[ 1430.253104] wlp3s0: deauthenticating from 6c:38:a1:3e:3d:cd by local choice (Reason: 3=DEAUTH_LEAVING)
[ 1430.268820] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
但我不确定这是否与这个问题有关。
因此，我强烈怀疑问题出自 Atheros Wifi 或 Realtek，尽管 安装了软件包firmware-realtek并且 firmware-atheros电缆和 WiFi 连接确实可以正常工作，但我发现没有任何问题。
文件内容etc/network/interfaces为：
source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback