Add video mode changer

[Sierraffinity]

I have a Wii U that has a possible video mode issue that I'd like to test out some more before resorting to changing out the HDMI chip. However, to do this requires me to be able to boot the system, which I currently can't do. I can get into the recovery menu (as seen by the purple light on the front) and dump logs by blindly poking at the buttons (so some part of the system is clearly working), but I don't have a way to force a switch to composite or component output. Would this be possible as an addition to the menu?

[filipe-maia]

Hi.
I have a Wii U that doesn't show any image and I don't have any gamepad connected.
I can brute force the code on the gamepad, but it would take a long time.
I know the Wii U works, because I was able to blindly use udpih and recovery_menu to dump OTP+SEEPROM.
I would prefer a new option to log into a file on the SD card the code to connect a gamepad to that console, but the sugestion from @Sierraffinity is also great.
Please implement one or the other or both.
Thanks.

EDIT: Using recovery_menu_dc_init did not solve my problem, because I believe the problem of this Wii U is in the HDMI port.

[Sierraffinity]

The problem for me was a busted HDMI chip, I know it's not the desired solution here but just letting you know what I ended up needing to do.

[filipe-maia]

Hi @Sierraffinity .

I managed to sync a gamepad using the recovery_menu inside the ZIP file in here:
#19

With a synced gamepad, I rebooted the Wii U normally and then entered it's settings to change to the non-HDMI port.

I would prefer to have an option on the recovery_menu to change the video modes, like you said, it would have been much easier.