Sorry, @tjaalton, took a while (needed to install Ubuntu again). I was able to test your custom kernel on a freshly installed Ubuntu 19.10. Results with custom kernel from https://aaltoset.kapsi.fi/lp1826125:
- Screen corruption was gone
- Suspend/resume worked and graphics output was usable after resume
- Did not test hibernate/resume
Sorry, @tjaalton, took a while (needed to install Ubuntu again). I was able to test your custom kernel on a freshly installed Ubuntu 19.10. Results with custom kernel from https:/ /aaltoset. kapsi.fi/ lp1826125:
- Screen corruption was gone
- Suspend/resume worked and graphics output was usable after resume
- Did not test hibernate/resume
This kernel image solved the reported issue.