Tsec keys function always disabled host1x clock after running.
This interferes with display interface and disables further window frame syncing.
Display_end code already handles disable and reset of said clock.
It also fixes an ancient bug that was mitigated by removing the 5 frame sync on HOST1X_SYNC_SYNCPT_9 at channel 0:
5fd9daa364 (diff-6b0c56eab8515465d559ff0ea73a22c3L152)
This is important, otherwise it can break tools like memloader.
Until a semi-usb init solution is found, hekate will show bootlogo and allow you to go to menu.
If >= 7.0.0 after that, it will run sept and then show logo again without a wait. For as long as rebuilding the boot process takes.
