A 240 Hz OLED does nothing for you on Linux if the cable, the GPU driver or the desktop won’t pass HDR and VRR through. The best gaming monitor for Linux is the one whose ports, VRR range and HDR metadata match what KWin, mutter and your driver can drive today.
You get five picks from about $230 to $1,200, plus the EDID check, the KDE Plasma and GNOME switches for HDR and VRR on Wayland, and the Proton launch options for HDR games. The desktop settings and EDID checks were run on a Fedora 45 lab VM in October 2026, so every command below is current for Black Friday shopping.
Start with the quick picks
Each monitor below wins one job, and all five have a DisplayPort input, which matters more on Linux than on Windows (the HDMI section explains why). Find your desk in the second column:
| Pick | Best for | Panel | Resolution and refresh | Price band |
|---|---|---|---|---|
| ASUS ROG Swift OLED PG32UCDP | Best overall, 4K | WOLED | 3840×2160 at 240 Hz, 1080p at 480 Hz | $1,050 to $1,200 |
| Samsung Odyssey OLED G6 (G60SF) | Fast shooters | QD-OLED | 2560×1440 at 500 Hz | $700 to $1,000 |
| Alienware AW3426DW | Ultrawide | QD-OLED, curved | 3440×1440 at 280 Hz | about $800 |
| LG UltraGear OLED 27GX704A-B | Cheapest OLED | WOLED, glossy | 2560×1440 at 240 Hz | $400 to $450 |
| AOC Q27G3XMN | HDR on a budget | VA mini-LED, 336 zones | 2560×1440 at 180 Hz | $220 to $260 |
Prices come from Amazon US on October 29, 2026, with every pick sold by Amazon.com itself that day. OLED prices swing hard in November, so check the live price before you order: the Samsung was already $300 under its list price and the LG half its list price.
Check how these were picked
None of these monitors sat on a lab desk, and this guide does not pretend otherwise. What was tested is the Linux side of the chain, on a Fedora 45 VM with KWin and mutter from the Fedora repos, and what was verified is every spec against the maker’s own page plus one independent review. The process ran in this order:
- Pull each pick’s specs from the ASUS, Samsung, Dell, LG and AOC product pages, then cross-check them against RTINGS or TechRadar.
- Confirm the exact Amazon listing, the seller and the stock state through Amazon’s API, and drop any listing sold used or only by third parties.
- Decode real EDID dumps from the linuxhw EDID database with
edid-decodeto see the VRR range and HDR metadata Linux reads from the panel. - Run
kscreen-doctoragainst a headless KWin session and query mutter’s settings schemas to see which HDR and VRR switches exist today.
Two candidates fell out at step 2. The LG 27GX790A-B (480 Hz, DisplayPort 2.1) was only on Amazon through third-party sellers at $710 and up, while LG sold it for $700 direct. The QD-OLED version of the ASUS, the PG32UCDM, showed up only as a used listing. If you want the 27GX790A-B, buy it from LG so you get the maker’s warranty without a reseller in the middle.
Compare the specs that matter on Linux
The table keeps the columns that change what works under Wayland: the VRR floor, the HDR tier, which ports carry full refresh and what the burn-in warranty covers. Everything comes from the makers’ spec pages:
| Model | HDR tier | VRR | Inputs | USB-C | Warranty |
|---|---|---|---|---|---|
| ASUS PG32UCDP | DisplayHDR True Black 400, 1300 nits peak | FreeSync Premium Pro, G-SYNC Compatible | 1x DP 1.4 (DSC), 2x HDMI 2.1 | Yes, DP Alt Mode, 90 W | 3 years, burn-in covered |
| Samsung G60SF | DisplayHDR True Black 500 | FreeSync Premium Pro, G-SYNC Compatible | 1x DP 1.4, 2x HDMI 2.1 | No | Burn-in at normal use covered |
| Alienware AW3426DW | DisplayHDR True Black 500, 1300 nits peak | FreeSync Premium Pro, G-SYNC Compatible, AdaptiveSync | 1x DP 1.4, 2x HDMI 2.1 | Data only, 15 W | 3 years, burn-in covered |
| LG 27GX704A-B | DisplayHDR True Black 400, 1300 nits peak | FreeSync Premium Pro, G-SYNC Compatible | 1x DP 1.4, 2x HDMI 2.1 | No | 2 years, burn-in not stated |
| AOC Q27G3XMN | DisplayHDR 1000, 336 dimming zones | Adaptive-Sync, 48 to 180 Hz | 1x DP 1.4, 1x HDMI 2.0 | No | Standard AOC warranty |
Read the inputs column first. Every pick tops out at DisplayPort 1.4, so 4K at 240 Hz on the ASUS depends on Display Stream Compression. The HDMI 2.1 ports are only a full-speed option on AMD once the kernel’s HDMI 2.1 support is switched on, which it isn’t by default yet. If you run an AMD card, plan to use DisplayPort on all five.
Buy the ASUS ROG Swift OLED PG32UCDP for 4K
The PG32UCDP is the one to buy if your GPU can push 4K and you also want a 32-inch screen for code and docs between games. You don’t give up competitive frame rates to get there, because the 1080p mode doubles the refresh rate when you need it. It is also the only pick with USB-C video and a built-in KVM.
It’s a 31.5-inch WOLED panel (RTINGS identifies it as LG’s MLA+ type) running 3840×2160 at 240 Hz, with a dual mode that drops to 1920×1080 at 480 Hz for competitive shooters. ASUS rates it at 1300 nits peak with DisplayHDR True Black 400, and the warranty runs three years with panel burn-in covered.
The Linux-relevant extras are the USB-C port with DisplayPort Alt Mode and 90 W charging, plus a built-in KVM, so a work laptop and a gaming tower can share it without a separate switch. The catch is the DisplayPort input: it is 1.4 with DSC, and 4K at 240 Hz does not fit through DP 1.4 without compression.
- Buy it if: you play at 4K, want one screen for work and games, and value the three-year burn-in cover.
- Skip it if: your GPU can’t hold 4K frame rates, or you want DisplayPort 2.1, which this model doesn’t have.
- Price: $1,075 on Amazon on October 29 against a $1,199 list price, so check the live price.
Pick the Samsung Odyssey OLED G6 for 500 Hz
The G60SF is the fastest panel here and the one to get if you play esports shooters where every extra frame counts.
It is a 27-inch QD-OLED at 2560×1440 and 500 Hz, certified DisplayHDR True Black 500, with one DisplayPort 1.4 and two HDMI 2.1 inputs. Samsung’s page says burn-in at normal usage is covered under the warranty, which is the clause you want on any OLED that will show a static taskbar for hours.
TechRadar’s review flags two trade-offs. The panel uses QD-OLED’s triangular subpixels rather than the newer RGB stripe, so small text looks a little soft, and the screen still takes on a purple tint in a bright room. There’s no USB-C either.
- Buy it if: frame rate beats resolution for you and your GPU can feed 1440p well past 240 fps.
- Skip it if: you read a lot of code on the same screen, or the room has a window behind you.
- Price: about $700 on Amazon on October 29 against a $999.99 list price; check the live price, since this one swings with every sale.
Go ultrawide with the Alienware AW3426DW
The AW3426DW is the ultrawide to buy for racing, flight sims and anything else where peripheral vision pays, and it eases the text fringing the older Alienware had.
Dell lists a 34-inch, 1800R QD-OLED at 3440×1440 and 280 Hz with DisplayHDR True Black 500 and 1300 nits peak. RTINGS measured it brighter than the AW3425DW and found less text fringing, because this panel arranges its subpixels in a stripe instead of the old triangle. Dell’s three-year warranty covers burn-in.
A 34-inch 3440×1440 panel has about the same pixel density as a 27-inch 1440p screen (roughly 109 pixels per inch), so you can run it at 100% scale on KDE or GNOME and skip fractional scaling. The weak spot is connectivity. There is no DisplayPort 2.1, and the USB-C port only carries data at 15 W, so a laptop can’t drive the screen over one cable.
- Buy it if: you play sims or racing games and want the newest QD-OLED with burn-in cover.
- Skip it if: you want a single-cable laptop setup; the AW3425DW, about $100 less, is the cheaper choice if 240 Hz is enough.
- Price: about $800 on Amazon on October 29, the same as Dell’s own store; check the live price before you order.
Save with the LG UltraGear OLED 27GX704A-B
At about $400, the 27GX704A-B is the cheapest way into OLED on this list, and it does the job as long as you can control the light in your room. The glossy finish is the reason, because it shows the deepest blacks when the room is dark and the worst reflections when it is not. So check where your window is before you order.
LG specs a 26.5-inch glossy WOLED at 2560×1440 and 240 Hz, DisplayHDR True Black 400 and 1300 nits peak, with two HDMI 2.1 ports and one DisplayPort 1.4. RTINGS calls it an entry-level OLED: the glossy coating gives deep blacks in a dim room and strong reflections in a bright one, and it lacks the brighter tandem panel of LG’s pricier models.
Read the warranty before you treat it like a work monitor. LG’s page gives two years with parts and labor but does not say whether OLED burn-in is included, while ASUS, Samsung and Dell state it outright. If the screen will show a static IDE most of the day, that gap matters more than the price.
- Buy it if: you want OLED contrast and motion for games at the lowest price and play in a dim room.
- Skip it if: you need written burn-in cover or sit with a window behind you.
- Price: about $400 on Amazon on October 29 with only a few units left, against LG’s $799.99 list price; check the live price and stock.
Try HDR on a budget with the AOC Q27G3XMN
The Q27G3XMN is the only monitor under $300 here that’s bright enough for HDR to look like HDR, and it carries no burn-in risk because it is not an OLED. That makes it the safer buy if the same screen shows a static desktop all day, which is when OLED burn-in clauses start to matter.
AOC’s spec page lists a 27-inch VA panel with a 336-zone mini-LED backlight, VESA DisplayHDR 1000, 2560×1440 at 180 Hz, one DisplayPort 1.4 and one HDMI 2.0. Don’t trust the Amazon title on this one: it claims HDMI 2.1 and 3440×1440, and both are wrong according to AOC.
RTINGS confirms the zone count and HDR 1000 rating and reports distracting VRR flicker, which is a VA trait that shows up in dark scenes when the frame rate swings. On Linux you can trade VRR for a fixed refresh rate per game, so set the VRR policy to manual (the KDE section shows how) if flicker bothers you more than tearing.
- Buy it if: you want to try HDR gaming on Linux for about $230 with no burn-in worries.
- Skip it if: you’re sensitive to VRR flicker or blooming around bright objects on black.
- Price: about $230 on Amazon on October 29, in stock and sold by Amazon; check the live price.
Read your monitor’s EDID before you trust it
KWin and mutter don’t read the box. They read the EDID, the block of data the monitor sends over the cable, and decide from it whether HDR and VRR are on offer. Checking it takes two commands, and it tells you more than any listing. On Fedora, edid-decode ships in the v4l-utils package:
sudo dnf install -y v4l-utilsUbuntu and Debian package it on its own as edid-decode, though Ubuntu 26.04’s build is a 2022 snapshot; di-edid-decode from libdisplay-info-bin is a newer decoder if that one misreads a recent panel. Next, find the connector your monitor sits on, because the sysfs path carries the card number and the port name:
for o in /sys/class/drm/card*-*; do echo "$(basename $o): $(cat $o/status)"; doneThe lab VM has one virtual GPU output, so it lists a single connected port. On a desktop you’ll see entries like card1-DP-1 and card1-HDMI-A-1:
card1-Virtual-1: connectedFeed that connector’s EDID to the decoder and keep the lines that decide gaming support. Swap card1-Virtual-1 for your own connector name:
cat /sys/class/drm/card1-Virtual-1/edid | edid-decode | grep -E "Product Name|Monitor ranges|ST2084|max luminance|Refresh Rate|Manufacturer"QEMU’s virtual display makes a useful bad example. It reports a 50 to 125 Hz range but no SMPTE ST2084 line, so no compositor will ever offer HDR on it:
Manufacturer: RHT
Monitor ranges (Range Limits Only): 50-125 Hz V, 30-160 kHz H, max dotclock 2550 MHz
Display Product Name: 'QEMU Monitor'Real gaming panels look different. The capture below decodes EDID dumps that Linux users uploaded to the linuxhw EDID database: the AOC Q27G3XMN pick, the AW3425DW that the Alienware pick replaces, and the PG32UCDM, the QD-OLED sibling of the ASUS pick. Neither newer model had a dump in the database yet:
Three fields carry the decision, and you can check the same ones on any monitor you’re considering:
- Monitor ranges: the refresh window. On a VRR panel it’s the VRR range, and all three report 48 Hz at the bottom. The line alone doesn’t prove VRR, though: QEMU’s display has one too.
- SMPTE ST2084: the PQ transfer function that HDR10 uses. If it’s missing, KDE’s and GNOME’s HDR switches stay greyed out.
- Desired content max luminance: the peak the panel advertises to the compositor, which KDE uses for tone mapping. The AOC claims 1156 nits, the OLEDs about 1000.
The full PG32UCDM decode also lists a 3840×2160 timing at 240.016 Hz with a 2,332 MHz pixel clock. That’s well past what DisplayPort 1.4 carries uncompressed, which is why the 4K 240 Hz ASUS models need DSC on that port.
Turn on HDR and VRR in KDE Plasma
Plasma has the most complete HDR stack on Linux. HDR arrived with Plasma 6.0 on Wayland and a calibration wizard landed in 6.4. The 6.8 line adds HLG and starts retiring the X11 session, and HDR only works on Wayland anyway (the Plasma Wayland switch guide covers that move). In the GUI, the switch lives under System Settings, Display & Monitor, High Dynamic Range.
From a terminal, kscreen-doctor does the same. Its help text on Fedora 45 lists the HDR, wide color gamut and SDR brightness switches:
kscreen-doctor --help | grep -iE "hdr|wcg|brightness"Note the separate hdr and wcg keys. The GUI checkbox sets both, the CLI does not, and KDE users report washed-out color when only hdr is on:
Set HDR mode (possible values: enable, disable)
$ kscreen-doctor output.HDMI-2.hdr.enable
Set SDR brightness (possible values: 100-1000)
$ kscreen-doctor output.HDMI-2.sdr-brightness.300
Toggle HDR and wide color gamut for the current active display
$ kscreen-doctor output.activeOutput.hdrAndWcg.toggle
Set brightness on non HDR screens (possible values: 0-100)
$ kscreen-doctor output.HDMI-2.brightness.10
Set wide color gamut mode (possible values: enable, disable)
$ kscreen-doctor output.HDMI-2.wcg.enableGet your output name from kscreen-doctor -o, then turn on HDR, wide gamut and VRR in one call. Replace DP-1 with your port:
kscreen-doctor output.DP-1.hdr.enable output.DP-1.wcg.enable output.DP-1.vrrpolicy.automaticThe vrrpolicy key is not in the help text, but kscreen-doctor accepts it with three values: never, always and automatic. Automatic turns VRR on only for fullscreen windows, which is what you want for games, because your desktop then stays at a fixed refresh rate and only the game window swings. Use never on the AOC if VRR flicker bothers you.
The lab exposed one trap you should know about: kscreen-doctor exits with status 0 and prints nothing even when the output can’t do what you asked. On the headless KWin session, hdr.enable “succeeded” silently, and only kscreen-doctor -o showed the truth:
Vrr: incapable
RgbRange: unknown
HDR: incapable
Wide Color Gamut: incapableSo always confirm with kscreen-doctor -o after a change. On a real HDR monitor, HDR: incapable almost always means the EDID check above failed: a cheap cable, an HDMI 2.0 port, or a dock that strips the HDR block.
Turn on HDR and VRR in GNOME
GNOME added a per-monitor HDR switch in GNOME 48, and GNOME 50 made VRR a regular option in Settings, Displays, so both now live in the GUI with no terminal step. Open Settings, pick the monitor under Displays, then:
- Switch on High Dynamic Range for that monitor.
- Set the refresh rate to the panel’s maximum and turn on the variable refresh rate option.
- Apply and keep the changes when GNOME asks you to confirm.
Old guides still tell you to enable VRR with a mutter experimental feature. On GNOME 51 that key is gone, and the command now fails:
gsettings set org.gnome.mutter experimental-features "['variable-refresh-rate']"Fedora 45 ships mutter 51.0, and gsettings rejects the key outright:
No such key “experimental-features”The experimental flags moved to their own org.gnome.mutter.experimental schema, and VRR is not one of them anymore. On Fedora 45 that schema only holds two unrelated switches:
gsettings list-recursively org.gnome.mutter.experimentalNeither one touches the display, so there’s nothing to set here for gaming:
org.gnome.mutter.experimental autoclose-xwayland false
org.gnome.mutter.experimental kms-modifiers falseIf the VRR toggle doesn’t show up in Settings, the problem sits upstream of GNOME. Check three things in order:
- Run the EDID check and confirm the panel reports a VRR range, such as the 48 Hz floor the gaming panels above show.
- Move the cable to DisplayPort if you’re on HDMI with an AMD card.
- Update the NVIDIA driver if it predates Wayland VRR support.
Once the toggle appears, a fullscreen game is the only thing that changes refresh rate, so you can leave it on permanently.
Get HDR into Proton games
The desktop switch only puts the compositor in HDR mode. Each game still has to output HDR, and under Proton there are two working paths. Before either, get Steam and Proton running with the Fedora gaming setup guide, and on NVIDIA follow the NVIDIA driver guide for Fedora.
The first path wraps the game in gamescope, Valve’s micro-compositor, and it’s the one to use on KDE. Skip it on GNOME: the ArchWiki notes that gamescope HDR looks washed out under mutter, so GNOME users should take the GE-Proton path further down. Fedora 45’s gamescope lists its HDR and adaptive sync flags in the help text:
gamescope --help 2>&1 | grep -iE "hdr-enabled|hdr-sdr-content|adaptive"The HDR flag notes that games need the gamescope WSI layer to send HDR, and the help says SDR content defaults to 400 nits:
--hdr-enabled enable HDR output (needs Gamescope WSI layer enabled for support from clients)
--hdr-sdr-content-nits set the luminance of SDR content in nits. Default: 400 nits.
--adaptive-sync Enable adaptive sync if available (variable rate refresh)Put this in the game’s Steam launch options. DXVK_HDR=1 tells DXVK to expose HDR to DirectX games, and -W and -H set gamescope’s output to the panel’s native mode, because gamescope otherwise defaults to 1280×720 and upscales. Swap 3840×2160 for 2560×1440 or 3440×1440 on the other picks:
DXVK_HDR=1 gamescope -f -W 3840 -H 2160 --hdr-enabled -- %command%Leave VRR to the desktop setting from the KDE section rather than gamescope’s own flag. The second path skips gamescope and uses Proton’s native Wayland driver. GE-Proton documents it from GE-Proton10-1 onward, and the GE-Proton install guide shows how to add it to Steam. Valve’s own Proton does not document these variables, so pick GE-Proton for this route:
PROTON_ENABLE_WAYLAND=1 PROTON_ENABLE_HDR=1 %command%Then switch HDR on inside the game’s own video menu. On NVIDIA, the ArchWiki HDR page lists native Vulkan HDR support from the 595.58.03 open driver onward. Older drivers need a Vulkan HDR layer with ENABLE_HDR_WSI=1, which Fedora doesn’t package (Arch has it in the AUR), and that layer is for the GE-Proton path only: leave ENABLE_HDR_WSI unset with gamescope or it breaks.
Use DisplayPort on an AMD card
Plug an AMD card into DisplayPort. For years the HDMI Forum kept HDMI 2.1’s FRL signalling out of the open-source amdgpu driver, which capped HDMI at 2.0 speeds and 4K at 60 Hz in full color. FRL support finally merged in Linux 7.2 but is disabled by default, and a patch to turn it on by default is aimed at Linux 7.4, according to Phoronix. HDMI VRR and ALLM patches are still pending.
The practical rule follows from that. On AMD, use the DisplayPort input on every pick here and leave the HDMI 2.1 ports for a console. That block applied to AMD’s open-source driver, so on NVIDIA the HDMI 2.1 ports are a fair choice too, but DisplayPort works on every card. If you share one monitor between two PCs, the KVM switch guide covers DisplayPort switches that hold 4K at high refresh.
Match the panel type to your room
Panel type decides more of your daily experience than the refresh rate does, especially if the same screen does work and games. Pick by the room and the hours of static content:
- Dim room, mostly games: QD-OLED (Samsung, Alienware). Best color, but blacks lift and tint purple under room light.
- Mixed light, mixed use: WOLED (ASUS, LG). Holds black better in a lit room, with a less saturated top end.
- Bright room or all-day static desktop: mini-LED (AOC). No burn-in, brighter full-screen HDR, but blooming and VA smearing.
Text fringing is the OLED issue Linux users notice first, because Linux subpixel font rendering only knows stripe layouts (RGB, BGR and their vertical forms), and triangle QD-OLED and RWBG WOLED panels match none of them. Set font subpixel rendering to none (grayscale antialiasing) in KDE’s Fonts settings or GNOME Tweaks, and colored edges on small text mostly disappear. If you code on the same screen all day, the programming monitor guide has IPS options that avoid the problem entirely.
Keep this HDR and VRR reference card
Every switch from this guide in one place, with where it lives and how to confirm it took:
| Task | Command or setting | Confirm with |
|---|---|---|
| Check the panel offers HDR and VRR | cat /sys/class/drm/<connector>/edid | edid-decode | SMPTE ST2084 for HDR; VRR shows as capable in kscreen-doctor -o or as a GNOME toggle |
| KDE HDR and wide gamut | kscreen-doctor output.DP-1.hdr.enable output.DP-1.wcg.enable | kscreen-doctor -o shows HDR enabled |
| KDE VRR for fullscreen games | kscreen-doctor output.DP-1.vrrpolicy.automatic | kscreen-doctor -o shows the Vrr policy |
| GNOME HDR and VRR | Settings, Displays, High Dynamic Range and Variable Refresh Rate | Both toggles stay on after Apply |
| HDR in a Proton game on KDE (any Proton) | DXVK_HDR=1 gamescope -f -W 3840 -H 2160 --hdr-enabled -- %command% | The game’s own HDR option unlocks |
| HDR in a Proton game on GNOME or KDE (GE-Proton) | PROTON_ENABLE_WAYLAND=1 PROTON_ENABLE_HDR=1 %command% | The game’s own HDR option unlocks |
| Full refresh on AMD | DisplayPort input, not HDMI | Max refresh rate listed in Display settings |
Run the EDID check first on any monitor you’re about to keep, since every other row depends on it. If the decode shows no ST2084 line through your cable and port, swap the cable or the port before you blame KDE, GNOME or Proton.
