Here are some known issues with Chrome OS Flex. If available, we list a workaround to help troubleshoot the issue. Read each issue carefully to make sure you understand their impact before switching to Chrome OS Flex.
Things to bear in mind
Chrome OS Flex differs from Chrome OS
- Chrome OS Flex has important differences from Chrome OS that impact security, applications, and hardware support. See Differences between Chrome OS Flex and Chrome OS.
From time to time, Sandisk or other USB drives might not work as installers. Potential USB drive issues include:
- USB cannot be written to. For example, it halts writing at 0%.
- Even though the USB installer is successfully created, the device doesn't boot.
- The device doesn’t install Chrome OS Flex and fails with error code 1.
- The device starts the installation but then stalls.
- The Extensible Firmware Interface (EFI) file is not visible on the USB drive.
- Format your USB drive and recreate your USB installer.
- Try a USB drive from a different manufacturer.
Internal speakers automatically mute while 1/8 inch headphones are plugged into devices, even if you use audio settings to select internal speakers for output.
Unplug the 1/8 inch headphones from the device.
When using multiple monitors, high resolution displays that are 2560 by 1440p or greater might not be able to use mirror mode, even if extended mode works on the same monitor. You might see a blank screen, frozen image, or other issues, depending on the device.
Desktops with integrated Intel GPUs and an added discrete GPU in an expansion slot might not be able to output video from the expansion slot’s video output ports.
On devices with multiple GPUs, use integrated video output ports.
Even on devices whose BIOS or UEFI settings support SD cards as bootable devices, you might not be able to use SD or microSD cards to boot Chrome OS Flex.
Use a USB drive.
Chrome OS Flex cannot install if internal storage—such as HDD, SSD, and so on—is set to RAID mode.
Before you install Chrome OS Flex on devices, switch BIOS or UEFI settings from RAID to AHCI.
- Open the BIOS settings menu.
- Find the menu for RAID and AHCI settings, typically under Storage.
- Make sure that RAID is set to Disabled or switch from RAID to AHCI.
- Save the settings and exit the BIOS settings menu.
- Re-install Chrome OS Flex on the device. For instructions, see Boot device using the USB installer and Start using Chrome OS Flex.
These Wi-Fi chipsets are currently not supported on Chrome OS Flex:
- Intel AX210
- Killer ax500 (also known as Qualcomm QCA3690)
In general, NVIDIA graphics are currently unstable on Chrome OS Flex and might show visual or functional issues.
NVIDIA GPUs with known issues include:
- C79 / GeForce 9400
- GK208M / GeForce
- GT 730M GT218M / NVS 3100M
Multiple generations of Intel GPUs are unsupported on Chrome OS Flex and will not boot it.
- Intel Generation 3 and older, including GMA 900, 950, 3100, 3150
- Intel PowerVR graphics, including GMA 500, 600, 3600, 3650
Chrome OS Flex provides the option to live boot, running the OS directly from your USB drive without actually installing it. Live boot keeps your device's current data and OS, so you can test Chrome OS Flex before you install it. Live booting is only recommended for temporary exploration or testing.
When you run Chrome OS Flex from USB, you might experience the following limitations:
- Lowered performance
- Storage space limitations and warnings
- No OS updates
- Hardware issues, such as sleep and resume malfunction
- Connectivity issues
- Devices cannot be enrolled
We strongly recommend full installation for the best Chrome OS Flex experience.
We only test and maintain Chrome OS Flex on certified models. For important notes or issues specific to individual certified models, go to the Certified models list.
- Only x86_64 architecture devices can run Chrome OS Flex. 32-bit x86 and ARM devices are not supported.
- Mac devices with Touch Bar, T2 security chip, or M1 processor are unsupported and likely to have major bugs even if they work.
- Unless listed as a certified model, Microsoft Surface products are unsupported and likely to have issues with keyboards, touchpads, touchscreens, and webcams.
- Linux development environment
- Chrome OS Flex only supports Linux development environment on devices that meet security and hardware capability requirements. For specific models, check the Certified models list.
- You might need to turn on BIOS or UEFI settings for VT-x, VT-d, or other virtualization settings.
- You might need to turn off hyper-threading using BIOS or UEFI settings
Chrome OS Flex cannot be enrolled for use in Chromebox for Meetings mode.
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