Unknown Display

[Praveen Kumar]

 try modifying the ideal display time in the display settings if this couldn't fix send me the screenshots of settings i shall guide you through.
    ஞாயிறு, 8 மே, 2022, முற்பகல் 11:07:47 IST -இல், Bob <ubuntu-qygzanxc at listemail.net> இவ்வாறு எழுதினார்:  
 
 I have searched the internet and the Ubuntu bugs for this problem without
success.

I updated a system from 21.10 to 22.04 and noticed that when the screen is
blanked by no keyboard or mouse activity that the backlight in the monitor is
still on.  The settings -> Displays has "Unknown Display" which I assume means
the system does not know what commands to send to the monitor to shut it off. 
I booted a live DVD of 21.10 and the settings has the display as 'AOC 22" '
which is correct and the screen blanking works correctly.  So it seems that the
definition for the AOC displays have been removed from 22.04.  I think I can
fix this by coping the AOC definitions from 21.10 to 22.04.

What is the file name of the file that contain the display definitions?

-- 
Robert Blair


Journalists and politicans are mouthpieces in a cottage industry who monitor and attack anything that may run contrary to their mission  -- Joe Bastardi 2020

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