Hi all,
I am working on our own designed board based i.MX6Q.Now I connected a 24-bit LVDS panels(4 pairs of LVDS data signals )
to LVDS0 port.And my bootargs for video is: video=mxcfb0:dev=ldb,LDB-XGA,if=RGB24.
When I boot up linux,my panel can only display some black and white vertical lines like this:
And some messages about IPU appeard:
Freeing init memory: 212K
INFO: task ipu1_task:378 blocked for more than 10 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
ipu1_task D 80544b9c 0 378 2 0x00000000
[<80544b9c>] (__schedule0x258/0x6d4) from [<803d2494>] (ipu_task_thread0x260/0xaf0)
[<803d2494>] (ipu_task_thread0x260/0xaf0) from [<800943ec>] (kthread0x80/0x88)
[<800943ec>] (kthread0x80/0x88) from [<80043a5c>] (kernel_thread_exit0x0/0x8)
INFO: task ipu1_task:379 blocked for more than 10 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
ipu1_task D 80544b9c 0 379 2 0x00000000
[<80544b9c>] (__schedule0x258/0x6d4) from [<803d2494>] (ipu_task_thread0x260/0xaf0)
[<803d2494>] (ipu_task_thread0x260/0xaf0) from [<800943ec>] (kthread0x80/0x88)
[<800943ec>] (kthread0x80/0x88) from [<80043a5c>] (kernel_thread_exit0x0/0x8)
Last login: Thu Jan 1 00:01:37 UTC 1970 on ttymxc0
speech-dispatcher disabled; edit /etc/default/speech-dispatcher
Checking for running unattended-upgrades:
vgaarb: this pci device is not a vga device
vgaarb: this pci device is not a vga device
[33m* [39;49m PulseAudio configured for per-user sessions
saned disabled; edit /etc/default/saned
INFO: task ipu1_task:378 blocked for more than 10 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
INFO: task ipu1_task:379 blocked for more than 10 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
1 Jan 00:00:47 ntpdate[5657]: no server suitable for synchronization found
INFO: task ipu1_task:378 blocked for more than 10 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
INFO: task ipu1_task:379 blocked for more than 10 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
INFO: task ipu1_task:378 blocked for more than 10 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
INFO: task ipu1_task:379 blocked for more than 10 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
I think maybe there is some relationship about my LVDS failure.But my HDMI is working OK.
Any advice will be appreciated.
Best Regards
Xiaoqiang
