The monitor can display normally for the first time when using (orin nano kit+NX module) to connect the Lenovo L24Q-35DP monitor and flashing it with sdkmanager . After restarting, I need to unplug and plug the DP interface serveral times to display normally. Changing to a Dell monitor does not have this problem, so the compatibility is not good. How to fix this problem?
Is this NV devkit?
Ate you talking about oem-config or pure Linux desktop?
Yes
I 'd like to know why the monitor does not display normally?But the first time is OK after sdkmanager flashing.How to debug?
Are you talking about oem-config or pure Linux desktop?
能先跟你確認一下. 你有看懂我在問的問題嗎?
是的，第一次能显示就是跟oem配置有关系，由于有提前配置好用户名密码后面就跳过了，所以重启就不能显示了，sdkmanager烧录后的第一次都是可以的。我想知道这个oem使能了什么配置使得显示器不黑屏？
OK. 所以你現在是在說Ubuntu desktop的部份不能顯示是嗎?
能請你把dmesg, /var/log/Xorg.0.log 這些資訊給出來嗎?
是的，关键是你们的套件都有问题，不然我可以对比，起初我还以为是我们自己的板子的问题。是SI眼图信号质量不好吗？导致兼容性不好
马上用套件抓给你
var-log.tar.gz (79.8 KB)
Hi,
請問你能用xrandr指令切換mode從2560x1440到其他mode測試一下能否顯示嗎?
我ssh用xrandr改不了报错，我用界面设置改了可以，改成了1920x1080 60hz和1920x1200 59.88hz重启还是黑屏，需要拔插屏幕才能点亮，重启后分辨率也是对的。
After configuring the PyTorch and TensorFlow environment on the Jetson Orin Nano board, the DP interface shows “No Signal” on the connected display after rebooting. However, using a TTL-to-USB converter to view the boot log shows that the system successfully boots and logs into the user.
reboot.log (76.7 KB)
Xorg.0.log (24.0 KB)
nano@ubuntu:~$ sudo dmesg | grep -i drm
[sudo] nano �的�密�码�：
[ 8.898443] systemd[1]: Starting Load Kernel Module drm…
[ 9.571397] drm drm: [drm] Cannot find any crtc or sizes
[ 9.587212] [drm] Initialized tegra 1.0.99 20120330 for drm on minor 0
[ 14.497801] [drm] [nvidia-drm] [GPU ID 0x00020000] Loading driver
[ 14.820312] [drm] Initialized nvidia-drm 0.0.0 20160202 for 13800000.display on minor 1
[ 14.836786] nv_platform 13800000.display: [drm] Cannot find any crtc or sizes
nano@ubuntu:~$
nano@ubuntu:~$ cat /sys/class/drm/card1-DP-1/status
disconnected
The attachment includes the system output during boot and the Xorg.0.log file