imx6qc串口链接，键盘输入没有反应
1 昨天刚刚拿到imx6QC板子，打开板子，使用usb转串口，连接好之后，在串口消息界面，键盘无法输入；2 今天按照文档，重新烧写了imx6QC 1G 的内容， 按照教程，在ubuntu下烧写了SD卡，使用SD重新烧写的方法，烧写顺利完成后，重新上电启动也很顺利，但是到最后需要输入login用户名时，依然如上面所述，键盘输入没有反应，如下图所示：
Starting Xserver
Starting system message bus: dbus.
Starting Connection Manager
Starting Dropbear SSH server: Generating key, this may take a while...
[ 9.089513] tsc2007 2-0048: i2c io error: -5
[ 9.995497] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready!
[ 10.001783] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22
[ 10.010732] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready!
[ 10.017042] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22
[ 10.026503] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready!
[ 10.032787] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22
[ 10.042124] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready!
[ 10.048616] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22
[ 10.057817] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready!
[ 10.064152] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22
[ 10.073404] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready!
[ 10.079753] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22
[ 10.088938] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready!
[ 10.095252] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22
[ 10.108043] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready!
[ 10.114367] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22
[ 10.662713] random: nonblocking pool is initialized
Public key portion is:
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCyjzfPkkaOVwZmGmKc8FBb4hoQt7ucYqiCLJbeA6//ZuJ9bBQ8r0meLZeD6tt3rxIkvblHGI6OpQJR4gN7g80kkHzME6tlWEyPQWbrY3CtuxQwuEKRZPaJ0IHletLvjOieFIlt/hRxVcuwtMNhxgk8u6z8GhRn1Wx+JzHk9lFQdh6RqP8Hmyf7xzClE9xPRwmB8gS90YK2Pn4OjTu7jOLml0rocrlsTr62Sga92FXjDfmhyYN5D3WPl2avX3Ryevqs6F1amtCQxHBl8367JB01MyVs5wR854kML1s7rJEv4O/3HfOi9rj0w9bLzyHGYTWODw2V8eE4ngLh+44cjKXF root@imx6qsabresd
Fingerprint: md5 a9:d1:0f:14:83:48:42:4f:28:a5:bb:ea:08:11:5f:87
dropbear.
Starting rpcbind daemon...done.
starting statd: done
Starting advanced power management daemon: No APM support in kernel
(failed.)
Starting atd: OK
NFS daemon support not enabled in kernel
Starting system log daemon...0
Starting kernel log daemon...0
* Starting Avahi mDNS/DNS-SD Daemon: avahi-daemon [ ok ]
Starting Telephony daemon
Starting Linux NFC daemon
Starting crond: OK
Starting autohdmi:
ALSA: Restoring mixer settings...
Running local boot scripts (/etc/rc.local).
Freescale i.MX Release Distro 4.1.15-2.1.0 imx6qsabresd /dev/ttymxc0
imx6qsabresd login:
再次重新上电，出现以下的现象，依然是无法键盘输入，回车也不行
68655] udevd: starting version 3.1.5
[ 4.884100] random: udevd urandom read with 30 bits of entropy available
[ 5.207617] tsc2007 2-0048: i2c io error: -5
[ 5.267379] ERROR: v4l2 capture: slave not found!
[ 5.267831] ERROR: v4l2 capture: slave not found!
[ 5.877875] FAT-fs (mmcblk2p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[ 5.881940] FAT-fs (mmcblk3p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[ 5.958352] usbcore: registered new inte**ce driver rtl8723bu
bootlogd: cannot allocate pseudo tty: No such file or directory
urandom start: failed.
Usage: /etc/init.d/alsa-state {start|stop|status}
INIT: Entering runlevel: 5
Configuring network inte**ces... [ 7.894454] fec 2188000.ethernet eth0: Freescale FEC PHY driver (mii_bus:phy_addr=2188000.ethernet:01, irq=-1)
[ 7.933967] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
done.
Starting Xserver
Starting system message bus: dbus.
Starting Connection Manager
Starting Dropbear SSH server: dropbear.
Starting rpcbind daemon...done.
starting statd: done
Starting advanced power management daemon: No APM support in kernel
(failed.)
Starting atd: OK
NFS daemon support not enabled in kernel
Starting system log daemon...0
Starting kernel log daemon...[ 9.091697] tsc2007 2-0048: i2c io error: -5
0
* Starting Avahi mDNS/DNS-SD Daemon: avahi-daemon [ ok ]
Starting Telephony daemon
Starting Linux NFC daemon
Starting crond: OK
Starting autohdmi:
ALSA: Restoring mixer settings...
Running local boot scripts (/etc/rc.local).
Freescale i.MX Release Distro 4.1.15-2.1.0 imx6qsabresd /dev/ttymxc0
imx6qsabresd login: [ 10.139005] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready!
[ 10.145553] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22
[ 10.154715] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready!
[ 10.161003] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22
[ 10.170680] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready!
[ 10.176996] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22
[ 10.187022] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready!
[ 10.193327] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22
[ 10.203019] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready!
[ 10.209551] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22
[ 10.219144] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready!
[ 10.225500] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22
[ 10.235049] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready!
[ 10.241361] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22
[ 10.256013] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready!
[ 10.262316] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22
[ 11.835621] random: nonblocking pool is initialized
早上 使用iMX6Q-C_1GDDR(console_linux3.0.35)-sd重新制作了SD卡，还是同样的情况，：
starting pid 1525, tty '': '/etc/rc.d/rcS'
Mounting /proc and /sys
Starting the hotplug events dispatcher udevd
udevd (1534): /proc/1534/oom_adj is deprecated, please use /proc/1534/oom_score_adj instead.
Synthesizing initial hotplug events
RTL871X: module init start
RTL871X: rtl8723bu v4.3.16_14189.20150519_BTCOEX20150119-5844
RTL871X: build time: Aug 27 2019 14:55:31
RTL871X: rtl8723bu BT-Coex version = BTCOEX20150119-5844
RTL871X: rtw_ndev_init(wlan0)
RTL871X: rtw_ndev_init(wlan1)
usbcore: registered new inte**ce driver rtl8723bu
RTL871X: module init ret=0
Setting the hostname to freescale
Mounting filesystems
EXT4-fs (mmcblk0p1): re-mounted. Opts: (null)
mount: mounting usbfs on /proc/bus/usb failed: No such file or directory
Starting inetd:
imx-ipuv3 imx-ipuv3.0: IPU DMFC DP HIGH RESOLUTION: 1(0,1), 5B(2~5), 5F(6,7)
jzw;pwm_backlight_update_status:s_bl_en=1
Reconfiguring network inte**ces... eth0: Freescale FEC PHY driver (mii_bus:phy_addr=1:01, irq=-1)
done.
/usr/local/etc/sshd_config line 82: Unsupported option UsePAM
starting pid 3381, tty '': '/etc/rc.d/rc_gpu.S'
starting pid 3389, tty '': '/etc/rc.d/rc_mxc.S'
arm-none-linux-gnueabi-gcc (Freescale MAD -- Linaro 2011.07 -- Built at 2011/08/10 09:20) 4.6.2 20110630 (prerelease)
root filesystem built on Thu, 23 Apr 2015 13:54:31 +0800
Freescale Semiconductor, Inc.
freescale login:
请问您用的什么终端，可以换条线或者尝试使用telnet。 参考以下链接：
用putty的串口访问ARM板，能够显示，但是不能输入指令
已经解决我目前的问题
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