This really applies.  I use Caffeine.  https://launchpad.net/caffeine 
When I set it "active" my screen never turns off.

Al

On 1/3/21 10:04 AM, Don wrote:
> I just saw this on linuxtoday.com
> How to Disable Suspend and Hibernation Modes In Linux
> https://www.tecmint.com/disable-suspend-and-hibernation-in-linux/
>
> Tell us if this works,
> Don
>
> On 1/3/21 9:07 AM, David Wright wrote:
>>
>>
>> On Sun, 3 Jan 2021 at 10:20, David Wright <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>>
>>     On Sun, 3 Jan 2021 at 09:57, Michele Mor <[email protected]
>>     <mailto:[email protected]>> wrote:
>>
>>         Hi,
>>         Maybe it's something related to power settings and not lock
>>         screen?
>>
>>         Michele
>>
>>
>>
>>
>>     Thanks Michelle
>>
>>     All settings under Power Manager > Display are set as 'Never' -
>>
>>     Blank After - Never
>>
>>     Put to sleep after - Never
>>
>>     Switch off after - Never
>>
>>     Dave
>>
>>
>>
>> *Update* - on an earlier attempt to keep the screen on, I'd set the
>> screensaver/system idle time to 180 minutes.  Even though the
>> screensaver was subsequently disabled, it seems this 3 hour time was
>> still having some affect, as the screen was indeed going black after
>> three hours.  I've now set that timer to 999 minutes (over 16 hours)
>> which should suffice for most days.  Screensaver then disabled again. 
>> I've never had this problem before.  Just set everything related to
>> display to off or never and it's been fine.  If anyone has any more
>> thoughts, I'll be happy to hear them as I feel the 999 minutes is an
>> inelegant fudge/workaround.
>>
>> Kind regards
>> Dave
>>
>>  
>>
>
>
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