Public bug reported:

Subject: Xreal Glasses 1S experience intermittent blackouts and green
line artifacting at 120Hz over Type-C (works fine in Windows 11) Razer
Blade 16 2023/2024 RTX 4090

Bug Report / Description:
When connecting Xreal Glasses 1S to an Ubuntu 26.04.1 system equipped with an 
Intel/NVIDIA hybrid graphics setup (tested on both left and right USB-C ports), 
the display successfully initializes at its native 1200p resolution and 120Hz 
refresh rate. However, every 15 to 30 seconds, the display drops to black 
momentarily and recovers with digital glitching/horizontal green lines.

Steps to Reproduce:

Connect Xreal Glasses 1S via USB-C to either the left or right port.

Set display output to native 1200p at 120Hz.

Observe output during normal usage.

Expected Behavior:
Stable continuous video stream at 1200p 120Hz without drops or artifacting, 
matching the stable performance observed on the exact same hardware 
configuration running Windows 11.

Additional Context:
This points to a Linux-specific DisplayPort Alt Mode link-training stability, 
power management, or hybrid graphics handoff issue under high bandwidth 
(120Hz), as the physical ports and hardware function perfectly under Windows.

ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-34-generic 7.0.0-34.34
ProcVersionSignature: Ubuntu 7.0.0-34.34-generic 7.0.14
Uname: Linux 7.0.0-34-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Wed Sep 30 21:38:43 2026
HotplugNewDevices:
 
HotplugNewMounts:
 
InstallationDate: Installed on 2026-09-05 (25 days ago)
InstallationMedia: Ubuntu 26.04.1 LTS "Resolute Raccoon" - Release amd64 
(20260826)
MachineType: Razer Blade 16 - RZ09-0483
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
ProcFB:
 0 i915drmfb
 1 nvidia-drmdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-34-generic 
root=UUID=4610448f-8d81-4e7d-967e-6b96cfd133b8 ro quiet splash 
usbcore.autosuspend=-1 
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
SourcePackage: linux
Symptom: storage
UdisksMonitorLog:
 Monitoring the udisks daemon. Press Ctrl+C to exit.
 21:39:12.076: The udisks-daemon is running (name-owner :1.5).
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/07/2026
dmi.bios.release: 2.5
dmi.bios.vendor: Razer
dmi.bios.version: 2.05
dmi.board.name: SO690
dmi.board.vendor: Razer
dmi.board.version: 4
dmi.chassis.type: 10
dmi.chassis.vendor: Razer
dmi.ec.firmware.release: 2.1
dmi.modalias: 
dmi:bvnRazer:bvr2.05:bd01/07/2026:br2.5:efr2.1:svnRazer:pnBlade16-RZ09-0483:pvr9.04:rvnRazer:rnSO690:rvr4:cvnRazer:ct10:cvr:skuRZ09-0483UGJ4:pfa1A583006RazerBlade:
dmi.product.family: 1A583006 Razer Blade
dmi.product.name: Blade 16 - RZ09-0483
dmi.product.sku: RZ09-0483UGJ4
dmi.product.version: 9.04
dmi.sys.vendor: Razer

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug resolute wayland-session

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https://bugs.launchpad.net/bugs/2169065

Title:
  Xreal Glasses 1S fail to initialize display output over USB-C/DP on
  Ubuntu

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