# Limitations **Qualcomm Linux 2.0rc1:** Below not enabled features are planned to be supported in next release. - meta-qcom-extras not enabled for RC1 release - QCS5430 FP2, FP2.5 and FP3 not enabled - RB3 Industrial kit not supported with RC1 release - Interface plus mezzanine not enabled on IQ8 and IQ9 - GMSL mezzanine not enabled on IQ8 and IQ9 - Some of Fastrpc use cases failure observed - Libvirt : virsh reboot/shutdown is not working - virtio-9p is not listed in qemu-system-aarch64 devices causing failure in 9p transfer - virtqemud is not enabled by default on bootup and need to be enabled manually with systemctl - [Issue #1634](https://github.com/qualcomm-linux/meta-qcom/issues/1634) - Audio recording using GStreamer pipeline fails - Video playback and recording failed with GStreamer pipeline - KVM secure PIL not enabled for QCS6490, IQ6, and IQ8 - Device ADB ID and fastboot id mismatching on both Config#1 and Config#2 builds - Failure observed with kmscube GPU test execution - CDSP Source code building is not enabled - Sample applications are not enabled in this release - AI workflow is not enabled in this release | User must follow below steps in sequence to boot into KVM

  1. Boot with default images


  2. Update EFI var to switch to KVM boot following below instructions,



    echo -n “el2kvm” > /var/data


    efivar -n 882f8c2b-9646-435f-8de5-f208ff80c1bd-VendorDtbOverlays -w -f /var/data


    efivar -n 882f8c2b-9646-435f-8de5-f208ff80c1bd-VendorDtbOverlays -p


    sync




  3. reboot to fastboot mode


  4. Flash xbl_config_kvm.elf into xbl_config partition


  5. reboot




**Open Issue:** EFI variable presently cannot be updated when step 4. is done before step 2. adhere to the mentioned sequence. | | --- | **QCS6490/QCS5430:** - Failure observed with device in QACT tool - Device crash observed with PCIe low power mode support - Sensors not enabled on Config#1 build - Observing ~120sec increase in boot time due to systemd-networkd-wait-online service time outs - Weston UI distortion observed with Config#2 build on 4K monitors - USB Camera not detected on RB3gen2 - Observed video encode and decode use case failure using GStreamer pipeline. - Audio Playback Fails in Deep Buffer Mode - Observed Video use cases failure with config #2 builds, **workaround\*** provided at end of this section. **IQ6:** - Observing “Internal data stream error.” during 1080p encode use case - No data captured in the recorded clip with pipewire and Alsa - eMMC Sequential KPI degradation observed - Post Suspend Device goes to Offline state - Random GPU Hang in VKMark ,Glmark2 & ERROR\_INCOMPATIBLE\_DRIVER in Vulkan OSS Apps - Device boot-up crash observed with config#2 build - Boot-up failure observed with pre-built flashable binary - Connect HDMI pre bootup as workaround for successful bootup. OR, - To fix this issue include this [https://github.com/qualcomm-linux/meta-qcom/pull/1623](https://github.com/qualcomm-linux/meta-qcom/pull/1623) **IQ8**: - Observing no element “v4l2av1dec” on both config#1 and config#2 builds - USB isn’t waking up from suspend on IQ8 EVK - Suspend resume failure observed on IQ8 EVK - Bluetooth failure observed. - Nic Card ports are not showing network interface list - USB2 Micro-B Host mode not working - Secure device bootup got stuck on doing force crash - Observed KVM based bootup failure on IQ8 **IQ9:** - Observed no element “v4l2av1dec” error message - USB Camera not detected on IQ9 EVK - USB isn’t waking up from suspend on IQ9 EVK - Failure observed with ‘reboot’ and `reboot edl’ commands - Bluetooth failure observed. - Nic Card ports are not showing network interface list - USB0 POPI leading to adb to offline in both Config#1 and Config#2 - Host Mode on USB 1 (USB 3.0) port is not working - KVM support enabled only for config #1 **NOTE:** More information about SOTA and RT will be provided in a future revision of this document. **Workaround for Video failure on QCS6490 :** |


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> | | --- | Last Published: Mar 10, 2026 [Previous Topic Release contents](https://docs.qualcomm.com/bundle/publicresource/80-80020-300/topics/release_contents.md) [Next Topic Memory configurations](https://docs.qualcomm.com/bundle/publicresource/80-80020-300/topics/memory_configurations.md)