Recent update breaks OSD during refresh rate selection

[wedebe]

! Before you log an issue, have you updated to the most recent version? It's possible the issue may have already been fixed. Yes

Describe the bug / Actual behaviour: OSD disappears for remainder of setup process at selection of a different refresh rate

Expected behaviour: Full OSD should not disappear, next step of wizard should be shown on screen.

Has this issue started to happen just recently? Yes, a couple of days ago

To reproduce: Steps to reproduce the behaviour: Following image flash, the video setup wizard prompts for:

• HDMI/Jack (select HDMI)
• Use auto mode? (select Yes)
• Select a refresh rate (1080p)*
• Select a resolution (video mode), then see the refresh rate screen (multi/50Hz/60Hz).
• OSD disappears, intermittently blanking as the LCD shows multi/50Hz/60Hz being cycled through - TV shows either "No signal or just the openATV backdrop remains

Screenshots Screenshots are incredibly helpful; if possible, please attach to help explain your problem.

Image/Box Model (please complete the following information):

• Version: 7.4
• BoxModel: mut@nt HD51

Additional context I haven't changed TV or cabling.

This TV normally shows "Unsupported mode", but in this case shows "No Signal", and on previous versions of openATV has shown that it has detected 1080p @60Hz

*1080p is the only resolution affected, as far as I can see

Changing to 1080i 50Hz (guided by LCD) after boot results in a display showing alternate black horizontal bars with display blanking every 2 seconds - fixed by a full reboot (OSD restart is not enough)

Possibly related to debug commands (specifically screen geometry) being shown during restore process recently?

[atvcaptain]

i test here 7.7 image hd51 all ok, no osd issue connect to full hd, and second test connect to 4k tv

[wedebe]

Further testing shows the issue occurs when booting into PiP mode