P: Hanging, requires force quit

Hi Sumeet, no specific steps and also not really reproducable. LR simply hangs from time to time, when it's in idle mode, meaning the program is minimized. Sometimes after a few mintues, sometimes maybee after half an our. When I maximize the LR windows from the taskbar again, it's 99% black and on the top left corner, I see all the contet of the full windows, so like it could not "maximize" the content of LR again. Hope you understand. I will to a screenshot when it occurs next time. Also the program is then in "Not responding" mode in task manager and has to be killed. This problem i only have since 7.3 and 7.3.1. The versions before had not this issue.

This sounds like it may be connected to the crash that's happening with systems where there are USB drives connected that goes to sleep on system idle(or cloud folders that becomes unavailable) that's reported here - https://feedback.photoshop.com/photoshop_family/topics/lightroom-classic-7-3-crash-on-eject-sd-card

Hi All,

This issue isn't reproducible at our end. We would like to try the steps you followed which has made you reach to this state of Lr.

Any specific steps followed ? A video of the same issue happening being sent to us would be much appreciated to investigate further. Also do share your system info with it. 
"System Info" [LR -> Help -> System Info]

Regards,
Sumeet

Same problem here, with Lr 7.3.x.
It crashes especially after opening. Some times the window just become 'white' immediately - by itself -, others it seems normal, until I click something on the screen (and yes, the windows become white).
I've never had problems like this, before. I guess it depends on the update.
A fix would be really appreciated (paying for a software that waste your time isn't so cool).

Also having the same issue and have tried all suggestions (external hard drives disconnect, GPU disable, system power settings), all to no avail.  After idle, sometimes no more than an hour, I have to force close it.

I am still on Lightroom 6, Window 7. I have had this problem with various major versions of Lightroom for years. It happens to me when I start the program. Sometimes startup works just fine. Other times Lightroom will freeze and I need to kill it with Task Manager. Reboot sometimes helps solve the problem.

the attached hard drive being plugged in or not did not matter, also they do not hold any lightroom imported images or files

it never was a problem before 7.3 or 7.3.1

so i doubt it is something inherent to the computer...this seems like an obvious Lightroom problem

i made no changes between 7.2 working well and upgrading to 7.3 and 7.3.1

i have tried the graphics processor thing being on and off and that does nothing

also...i have had my computer set to not sleep without prompting it...also Lightroom hangs in 7.3+ even if the computer is still on (like i said no sleep) and when i am working in another window

it seems highly unlikely it is a sleep setting as it happens when the computer is being used for other tasks and i have it set to never sleep

I’m having the same issue and I know two other individuals that also have this problem. Win 10, latest LR 7.3.1.

This might help do a better job explaining than I https://technicallyeasy.net/fix-prevent-hard-drives-from-going-sleep-windows-10/

The more memory i had the more often the drives would go to sleep.   The more often LR and PS would have a issue.  In addition to the above go to Settings / Power and sleep / Additional Power Settings (on the far right) Click High Performance.  Once selected you can go deeper fine turn your settings.