Steam Deck OLED Receives Major Firmware Update with New Features

Valve has released SteamOS 3.6, a substantial firmware update for the Steam Deck that delivers meaningful improvements to the OLED model’s display capabilities, battery efficiency, and peripheral support. The update also brings welcome quality-of-life changes to both LCD and OLED variants.

HDR Gets Smarter

The headline feature for OLED owners is a completely reworked HDR tone mapping pipeline. The Steam Deck OLED’s 1000-nit display has always been capable of stunning visuals, but the previous HDR implementation left some games looking washed out or overly bright. SteamOS 3.6 addresses this with:

• Per-game HDR profiles: The system now automatically adjusts tone mapping based on the game’s native HDR implementation quality
• Manual HDR slider: A new quick-access slider lets users fine-tune peak brightness and shadow detail on the fly
• SDR-to-HDR conversion improvements: Games without native HDR support now receive better automatic conversion with more natural color grading
• Gamut mapping fixes: Colors in wide-gamut content no longer clip at the edges of the display’s P3 coverage

In testing across 20 popular titles, the improvements are immediately noticeable. Games like Cyberpunk 2077 and God of War show richer shadow detail without sacrificing highlight brightness. The automatic profiles eliminate the need to manually tweak settings for each game, which was a common pain point.

Battery Life Gains

Valve’s engineers have squeezed additional efficiency from the Deck’s APU power management. The improvements come from three areas:

Real-world testing shows the cumulative effect varies by workload:

The gains are most significant in lighter workloads where the GPU spends more time in lower power states. For demanding AAA titles running at maximum performance, the improvement is modest but still welcome.

Expanded Controller Support

SteamOS 3.6 adds native support for several popular Bluetooth controllers that previously required workarounds:

• 8BitDo Ultimate 2C: Full button mapping including gyro
• GameSir G7 SE: Wired and Bluetooth with haptic feedback
• Razer Wolverine V3: Complete feature support including trigger stops
• DualSense Edge: Adaptive trigger profiles now sync correctly
• Switch Pro Controller: Fixed intermittent disconnection issues

The update also introduces a controller calibration wizard accessible from Settings > Controller > Calibration. This tool helps resolve stick drift issues and dead zone inconsistencies without third-party software.

Redesigned Quick Access Menu

The Quick Access Menu (QAM), opened by pressing the three-dot button, has been reorganized for faster navigation:

• Performance tab: Now shows real-time power draw in watts alongside FPS, GPU/CPU usage, and temperature
• Display tab: HDR slider, brightness, and refresh rate controls consolidated in one place
• Audio tab: Per-app volume control and quick Bluetooth audio device switching
• Network tab: WiFi network switching without leaving the game
• Notifications tab: Grouped by app with quick dismiss options

The new layout reduces the number of taps needed to reach common settings. Changing the frame rate limit, for example, now takes two taps instead of four.

Desktop Mode Improvements

Desktop Mode, which provides a full Linux desktop environment, receives several usability improvements:

• Scaling fixes: UI elements now scale correctly on the 800p display without manual DPI adjustments
• File manager update: Dolphin file manager updated with better touch support
• Browser performance: Firefox performance improved with GPU acceleration enabled by default
• External display: Hot-plugging external monitors now correctly switches resolution and refresh rate

These changes make Desktop Mode more viable for productivity tasks, though it remains primarily a power-user feature.

Developer-Facing Changes

For game developers targeting Steam Deck, SteamOS 3.6 includes updated Proton 9.0-1 with:

• Improved anti-cheat compatibility (Easy Anti-Cheat and BattlEye)
• Better DirectX 12 translation performance through DXVK updates
• Reduced shader compilation stutter through expanded pre-caching
• New Steamworks API calls for detecting OLED vs LCD hardware

Valve reports that 85% of the top 1000 Steam games are now Playable or Verified on Steam Deck, up from 78% six months ago. The compatibility improvements in Proton 9.0-1 are expected to push that number higher.

How to Update

SteamOS 3.6 is rolling out in waves over the next week. To check manually:

1. Press the Steam button
2. Navigate to Settings > System
3. Select “Check for Updates”
4. Download and restart (approximately 1.2 GB)

The update takes 3-5 minutes to install. Existing game installations and settings are preserved.

Looking Ahead

Valve has hinted at further SteamOS improvements coming in Q2 2024, including a revamped game library interface, improved download management, and potential support for non-Steam storefronts. The company continues to invest heavily in the Steam Deck ecosystem, with hardware revisions and software updates maintaining its position as the leading PC handheld gaming device.

SteamOS 3.6 is a free update for all Steam Deck models.