How do I fix: Disabling Modesetting?

Step 1: Another solution is to disable modesetting by adding the following kernel parameter: i915.modeset=0. This will prevent the kernel from using a specific display driver that may be causing conflicts with LSPCON detection.Step 2: You can add this parameter to your grub configuration file or use

Hardware⏱️ 3 min read📅 2026-06-15

How to Fix: LSPCON detection error

Q: Best Solutions to Fix It Enabling Integrated Graphics Mode?

Step 1: To enable integrated graphics mode on your Lenovo IdeaPad S340 notebook, you need to add the following boot flag: acpi_osi=! acpi_osi='Windows 2009' pcie_aspm=off. This will disable PCIe ASPM and allow the kernel to detect LSPCON properly.Step 2: You can add these flags to your grub configur

Linux lspcon detection error on Lenovo IdeaPad S340 with Intel UHD 620 graphics.

Quick Answer: Try updating the Linux firmware to the latest version and ensure that the acpi_osi and pcie_aspm boot flags are set correctly.

📋 Table of Contents

💡 Why You Are Getting This Error
✅ Best Solutions to Fix It
✨ Wrapping Up

The LSPCON detection error is an issue that affects users of integrated graphics Intel UHD 620 on Lenovo IdeaPad S340 notebooks, specifically those running kernels 5.6.11, 5.6.14, and 5.6.15. This problem prevents the kernel from detecting LSPCON properly, leading to potential display issues.

This error can be frustrating for users as it may prevent them from using certain features or experiencing display problems. In this guide, we will explore possible causes of this issue and provide solutions to help resolve the problem.

💡 Why You Are Getting This Error

The primary cause of LSPCON detection error is a conflict between the kernel's DRM driver and the Intel UHD 620 graphics hardware. This conflict prevents the kernel from detecting LSPCON, which is required for some display features.
Another possible reason for this issue could be a problem with the Linux firmware or the kernel itself. In some cases, updating the firmware or kernel may resolve the issue.

✅ Best Solutions to Fix It

Enabling Integrated Graphics Mode

Step 1: To enable integrated graphics mode on your Lenovo IdeaPad S340 notebook, you need to add the following boot flag: acpi_osi=! acpi_osi='Windows 2009' pcie_aspm=off. This will disable PCIe ASPM and allow the kernel to detect LSPCON properly.
Step 2: You can add these flags to your grub configuration file or use a boot loader like GRUB that allows you to specify boot options. Make sure to save the changes and reboot your system.

Disabling Modesetting

Step 1: Another solution is to disable modesetting by adding the following kernel parameter: i915.modeset=0. This will prevent the kernel from using a specific display driver that may be causing conflicts with LSPCON detection.
Step 2: You can add this parameter to your grub configuration file or use a boot loader like GRUB that allows you to specify kernel parameters. Make sure to save the changes and reboot your system.

✨ Wrapping Up

To resolve the LSPCON detection error on your Lenovo IdeaPad S340 notebook, try enabling integrated graphics mode by adding specific boot flags or disabling modesetting using a kernel parameter. If these solutions do not work, you may want to consider updating your Linux firmware or kernel to the latest version.

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