Windrill

## loginloop.md

      
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                Windrill
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              Last active
              June 17, 2020 12:56
            
              
                Linux packages, dependencies and graphics drivers
              
          
    Login Loop:

Analysis: something must have failed to start, figure out what
journalctl -b on a shell (ctrl-alt-f3 or f2 or f1 from user login screen)
To temporarily refrain from touching display drivers nomodeset can be tried (boot screen click e, after quiet splash on the line starting with linux) (another option: nouveau.modeset=0)
Display managers(?): gdm3 (configured underneath: X11, lightdm, sddm), nouveau

switching may help but probably won't if it is not trivial (don't even try twice)
xauthority files only matter when you use a specific display manager...


Kernels that give trouble: nvidia kernels & drivers
If you didn't find the solution to your problem, make your google search phrase more specific


## setupJest.txt
1. npm install Jest
- This command is the Jest package
2. npm install ts-jest
- This enables jest with TypeScript annotations
3. npm i --save-dev @types/jest
- Use with step 4
4. Addd "@types/jest" to your tsconfig.json:
{ "compilerOptions": { "types": [""@types/jest"] } }
- This fixes your 'test' and 'expect' not found errors
5. Create some files named xxx.test.ts anywhere in your project. Usually these files will be auto-detected by jest for testing without needing to configure a jest config file.
	1. npm install Jest
	- This command is the Jest package
	2. npm install ts-jest
	- This enables jest with TypeScript annotations
	3. npm i --save-dev @types/jest
	- Use with step 4
	4. Addd "@types/jest" to your tsconfig.json:
	{ "compilerOptions": { "types": [""@types/jest"] } }
	- This fixes your 'test' and 'expect' not found errors
	5. Create some files named xxx.test.ts anywhere in your project. Usually these files will be auto-detected by jest for testing without needing to configure a jest config file.