PSL Posted September 21, 2020 Posted September 21, 2020 (edited) Armbianmonitor: http://ix.io/2ykN I have two Le Potato boards (http://ix.io/2ykP http://ix.io/2ykN), I installed Armbian Focal on them. One of the board has defective HDMI (board from Kickstarter?), it has no HDMI output. Other board was ordered from Amazon, a year later. It has HDMI output but colors are not right (white is green, black is purple, etc, HDMI image is not nice but it is usable; it is interesting that when I use HDMI to VGA adapter, colors are right; when board runs in low resolution, colors are right on HDMI too. But when resolution is high, 1950x1200, then HDMI colors are wrong - I swapped HDMI cable without any effect - is this known video driver issue??). So because only one board have working HDMI, I used that board with working HDMI to install Armbian to microSDHC card and then moved microSDHC to the other board (that is working but HDMI is broken). In few minutes I noted that both boards have the same MAC address (Ethernet). I have found that the MAC address in file /boot/armbianEnv.txt is unique for each board but they have the same MAC address 96:93:89:FF:90:C3 (and that MAC address is not in file armbianEnv.txt). Is this a bug? I fixed that by editing "/etc/NetworkManager/system-connections/Wired connection 1.nmconnection", I replaced MAC address "96:93:89:FF:90:C3" with address from armbianEnv.txt. After reboot each board has unique MAC address (and gets different IP address from local DHCP server). Edited September 21, 2020 by PSL
JMCC Posted November 28, 2020 Posted November 28, 2020 I am experiencing similar problems with HDMI wrong colors. It happens on all meson boards I tested (lepotato, c2, and a custom build for Khadas Vim2). It only happens with certain monitors/HDMI adapters, others work fine. In addition, I cannot select other resolution than the default (in this case 1280x720). I think the problem must be in u-boot hdmi initialization, because it is also present during the armbian boot logo. It does not happen with @balbes150's images, they have perfect colors in every monitor/adapter. I will open a bug in Jira. These are some screenshots of the failing displays: https://imgur.com/a/fW7lskz EDIT: This is something similar to what is reported for Odroid C2 in HK's images: https://wiki.odroid.com/odroid-c2/troubleshooting/forcergb This is the reference to the Jira issue: https://armbian.atlassian.net/browse/AR-550
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