Open
Conversation
Explain how default TV picture modes like “Eco” can introduce controller‑to‑screen delay. Emphasize that switching to “Game “ mode minimizes lag.
sub-section
Added 'TV': 'guides/tv.md'
Added "Older TVs: Enable RetroArch `Run-Ahead`" sub-section
Note that this latency issue is TV related; Computer monitors (LCD/LED, CRT, etc.) avoid this issue entirely
Shaders and overlays
Auto Low Latency Mode (ALLM), Variable Refresh Rate (VRR)
RetroArch's `Settings → Video → Synchronization` section provides `Vertical Sync (VSync)` (default: On), `Hard GPU Sync` (default: Off), and `Adaptive VSync` (default: Off) options
Common Name(s) for ALLM
sort
RetroArch typically does not send the required HDMI ALLM gaming flag. Manual activation of Game Mode remains essential for emulation setups.
minor
minor
RetroArch does not support native HDMI signaling to automatically enable VRR on compatible displays.
minor
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Explained how default TV picture modes like “Eco” can introduce controller‑to‑screen delay. Included effective workarounds.
Personal experience: On a 55-inch TV released in 2019, the default picture mode introduced severe controller-to-screen latency that rendered RetroArch gaming unplayable. Switching to "Game" mode completely eliminated the latency, restoring normal gameplay. This experience motivated me to write this PR to help other RetroArch users avoid the same issue.