[Bug 2084191] Re: [X1E] Request: Add support for Lenovo Yoga Slim 7x

Jerome Schneider 2084191 at bugs.launchpad.net
Wed Mar 18 08:33:53 UTC 2026 

linux-image-7.0.0-12-qcom-x1e didn't boot on Lenovo Yoga Slim 7x (full
kernel log attached):

Mar 18 09:09:24 probabl-laptop kernel: qcom-pcie 1c08000.pci: host bridge /soc at 0/pci at 1c08000 ranges:
Mar 18 09:09:24 probabl-laptop kernel: qcom-pcie 1c08000.pci:       IO 0x007c200000..0x007c2fffff -> 0x0000000000
Mar 18 09:09:24 probabl-laptop kernel: qcom-pcie 1c08000.pci:      MEM 0x007c300000..0x007dffffff -> 0x007c300000
Mar 18 09:09:24 probabl-laptop kernel: BUG: Bad page state in process kworker/9:1  pfn:f3004
Mar 18 09:09:24 probabl-laptop kernel: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xf3004
Mar 18 09:09:24 probabl-laptop kernel: flags: 0x7fffc000000000(node=0|zone=0|lastcpupid=0x1ffff) CMA
Mar 18 09:09:24 probabl-laptop kernel: raw: 007fffc000000000 fffffdffc1cc0148 ffff80008156b668 0000000000000000
Mar 18 09:09:24 probabl-laptop kernel: raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
Mar 18 09:09:24 probabl-laptop kernel: page dumped because: nonzero _refcount
Mar 18 09:09:24 probabl-laptop kernel: Modules linked in: qcom_pon i2c_hid_of panel_samsung_atna33xc20(+) nvme_keyring rtc_pm8xxx reboot_mode nvmem_qcom_spmi_sdam i2c_hid nvme_auth>
Mar 18 09:09:24 probabl-laptop kernel: CPU: 9 UID: 0 PID: 152 Comm: kworker/9:1 Tainted: G    B               7.0.0-12-qcom-x1e #12-Ubuntu PREEMPT(full) 
Mar 18 09:09:24 probabl-laptop kernel: Tainted: [B]=BAD_PAGE
Mar 18 09:09:24 probabl-laptop kernel: Hardware name: LENOVO 83ED/LNVNB161216, BIOS NHCN60WW 09/11/2025
Mar 18 09:09:24 probabl-laptop kernel: Workqueue: events request_firmware_work_func
Mar 18 09:09:24 probabl-laptop kernel: Call trace:
Mar 18 09:09:24 probabl-laptop kernel:  show_stack+0x20/0x48 (C)
Mar 18 09:09:24 probabl-laptop kernel:  dump_stack_lvl+0x7c/0xb8
Mar 18 09:09:24 probabl-laptop kernel:  dump_stack+0x18/0x38
Mar 18 09:09:24 probabl-laptop kernel:  bad_page+0x134/0x158
Mar 18 09:09:24 probabl-laptop kernel:  __free_frozen_pages+0x6f8/0x858
Mar 18 09:09:24 probabl-laptop kernel:  free_contig_frozen_range+0xf8/0x190
Mar 18 09:09:24 probabl-laptop kernel:  cma_release+0xf0/0x380
Mar 18 09:09:24 probabl-laptop kernel:  dma_free_contiguous+0x108/0x120
Mar 18 09:09:24 probabl-laptop kernel:  dma_direct_free+0x120/0x1f0
Mar 18 09:09:24 probabl-laptop kernel:  dma_free_attrs+0xe0/0x2c0
Mar 18 09:09:24 probabl-laptop kernel:  qcom_scm_pas_metadata_release+0x50/0x128
Mar 18 09:09:24 probabl-laptop kernel:  qcom_pas_start+0x320/0x4c0 [qcom_q6v5_pas]
Mar 18 09:09:24 probabl-laptop kernel:  rproc_start+0xc8/0x188
Mar 18 09:09:24 probabl-laptop kernel:  rproc_fw_boot+0x170/0x1d8
Mar 18 09:09:24 probabl-laptop kernel:  rproc_boot+0x19c/0x220
Mar 18 09:09:24 probabl-laptop kernel:  rproc_auto_boot_callback+0x24/0x58
Mar 18 09:09:24 probabl-laptop kernel:  request_firmware_work_func+0x5c/0xe0
Mar 18 09:09:24 probabl-laptop kernel:  process_one_work+0x170/0x568
Mar 18 09:09:24 probabl-laptop kernel:  worker_thread+0x19c/0x338
Mar 18 09:09:24 probabl-laptop kernel:  kthread+0x10c/0x128
Mar 18 09:09:24 probabl-laptop kernel:  ret_from_fork+0x10/0x20
Mar 18 09:09:24 probabl-laptop kernel: BUG: Bad page state in process kworker/9:1  pfn:f3005
Mar 18 09:09:24 probabl-laptop kernel: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xf3005
Mar 18 09:09:24 probabl-laptop kernel: flags: 0x7fffc000000000(node=0|zone=0|lastcpupid=0x1ffff) CMA
Mar 18 09:09:24 probabl-laptop kernel: raw: 007fffc000000000 fffffdffc1cc0188 fffffdffc1cc0108 0000000000000000
Mar 18 09:09:24 probabl-laptop kernel: raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
Mar 18 09:09:24 probabl-laptop kernel: page dumped because: nonzero _refcount
Mar 18 09:09:24 probabl-laptop kernel: Modules linked in: qcom_pon i2c_hid_of panel_samsung_atna33xc20(+) nvme_keyring rtc_pm8xxx reboot_mode nvmem_qcom_spmi_sdam i2c_hid nvme_auth>
Mar 18 09:09:24 probabl-laptop kernel: CPU: 9 UID: 0 PID: 152 Comm: kworker/9:1 Tainted: G    B               7.0.0-12-qcom-x1e #12-Ubuntu PREEMPT(full) 
Mar 18 09:09:24 probabl-laptop kernel: Tainted: [B]=BAD_PAGE
Mar 18 09:09:24 probabl-laptop kernel: Hardware name: LENOVO 83ED/LNVNB161216, BIOS NHCN60WW 09/11/2025
Mar 18 09:09:24 probabl-laptop kernel: Workqueue: events request_firmware_work_func
Mar 18 09:09:24 probabl-laptop kernel: Call trace:
Mar 18 09:09:24 probabl-laptop kernel:  show_stack+0x20/0x48 (C)
Mar 18 09:09:24 probabl-laptop kernel:  dump_stack_lvl+0x7c/0xb8
Mar 18 09:09:24 probabl-laptop kernel:  dump_stack+0x18/0x38
Mar 18 09:09:24 probabl-laptop kernel:  bad_page+0x134/0x158
Mar 18 09:09:24 probabl-laptop kernel:  __free_frozen_pages+0x6f8/0x858
Mar 18 09:09:24 probabl-laptop kernel:  free_contig_frozen_range+0xf8/0x190
Mar 18 09:09:24 probabl-laptop kernel:  cma_release+0xf0/0x380
Mar 18 09:09:24 probabl-laptop kernel:  dma_free_contiguous+0x108/0x120
Mar 18 09:09:24 probabl-laptop kernel:  dma_direct_free+0x120/0x1f0
Mar 18 09:09:24 probabl-laptop kernel:  dma_free_attrs+0xe0/0x2c0
Mar 18 09:09:24 probabl-laptop kernel:  qcom_scm_pas_metadata_release+0x50/0x128
Mar 18 09:09:24 probabl-laptop kernel:  qcom_pas_start+0x320/0x4c0 [qcom_q6v5_pas]
Mar 18 09:09:24 probabl-laptop kernel:  rproc_start+0xc8/0x188
Mar 18 09:09:24 probabl-laptop kernel:  rproc_fw_boot+0x170/0x1d8
Mar 18 09:09:24 probabl-laptop kernel:  rproc_boot+0x19c/0x220
Mar 18 09:09:24 probabl-laptop kernel:  rproc_auto_boot_callback+0x24/0x58
Mar 18 09:09:24 probabl-laptop kernel:  request_firmware_work_func+0x5c/0xe0
Mar 18 09:09:24 probabl-laptop kernel:  process_one_work+0x170/0x568
Mar 18 09:09:24 probabl-laptop kernel:  worker_thread+0x19c/0x338
Mar 18 09:09:24 probabl-laptop kernel:  kthread+0x10c/0x128
Mar 18 09:09:24 probabl-laptop kernel:  ret_from_fork+0x10/0x20
Mar 18 09:09:24 probabl-laptop kernel: BUG: Bad page state in process kworker/9:1  pfn:f3006
Mar 18 09:09:24 probabl-laptop kernel: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xf3006
Mar 18 09:09:24 probabl-laptop kernel: flags: 0x7fffc000000000(node=0|zone=0|lastcpupid=0x1ffff) CMA
Mar 18 09:09:24 probabl-laptop kernel: raw: 007fffc000000000 fffffdffc1cc01c8 fffffdffc1cc0148 0000000000000000
Mar 18 09:09:24 probabl-laptop kernel: raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
Mar 18 09:09:24 probabl-laptop kernel: page dumped because: nonzero _refcount
Mar 18 09:09:24 probabl-laptop kernel: Modules linked in: qcom_pon i2c_hid_of panel_samsung_atna33xc20(+) nvme_keyring rtc_pm8xxx reboot_mode nvmem_qcom_spmi_sdam i2c_hid nvme_auth>
Mar 18 09:09:24 probabl-laptop kernel: CPU: 9 UID: 0 PID: 152 Comm: kworker/9:1 Tainted: G    B               7.0.0-12-qcom-x1e #12-Ubuntu PREEMPT(full) 
Mar 18 09:09:24 probabl-laptop kernel: Tainted: [B]=BAD_PAGE
Mar 18 09:09:24 probabl-laptop kernel: Hardware name: LENOVO 83ED/LNVNB161216, BIOS NHCN60WW 09/11/2025
Mar 18 09:09:24 probabl-laptop kernel: Workqueue: events request_firmware_work_func
Mar 18 09:09:24 probabl-laptop kernel: Call trace:
Mar 18 09:09:24 probabl-laptop kernel:  show_stack+0x20/0x48 (C)
Mar 18 09:09:24 probabl-laptop kernel:  dump_stack_lvl+0x7c/0xb8
Mar 18 09:09:24 probabl-laptop kernel:  dump_stack+0x18/0x38
Mar 18 09:09:24 probabl-laptop kernel:  bad_page+0x134/0x158
Mar 18 09:09:24 probabl-laptop kernel:  __free_frozen_pages+0x6f8/0x858
Mar 18 09:09:24 probabl-laptop kernel:  free_contig_frozen_range+0xf8/0x190
Mar 18 09:09:24 probabl-laptop kernel:  cma_release+0xf0/0x380
Mar 18 09:09:24 probabl-laptop kernel:  dma_free_contiguous+0x108/0x120
Mar 18 09:09:24 probabl-laptop kernel:  dma_direct_free+0x120/0x1f0
Mar 18 09:09:24 probabl-laptop kernel:  dma_free_attrs+0xe0/0x2c0
Mar 18 09:09:24 probabl-laptop kernel:  qcom_scm_pas_metadata_release+0x50/0x128
Mar 18 09:09:24 probabl-laptop kernel:  qcom_pas_start+0x320/0x4c0 [qcom_q6v5_pas]
Mar 18 09:09:24 probabl-laptop kernel:  rproc_start+0xc8/0x188
Mar 18 09:09:24 probabl-laptop kernel:  qcom_pas_start+0x320/0x4c0 [qcom_q6v5_pas]
Mar 18 09:09:24 probabl-laptop kernel:  rproc_start+0xc8/0x188
Mar 18 09:09:24 probabl-laptop kernel:  rproc_fw_boot+0x170/0x1d8
Mar 18 09:09:24 probabl-laptop kernel:  rproc_boot+0x19c/0x220
Mar 18 09:09:24 probabl-laptop kernel:  rproc_auto_boot_callback+0x24/0x58
Mar 18 09:09:24 probabl-laptop kernel:  request_firmware_work_func+0x5c/0xe0
Mar 18 09:09:24 probabl-laptop kernel:  process_one_work+0x170/0x568
Mar 18 09:09:24 probabl-laptop kernel:  worker_thread+0x19c/0x338
Mar 18 09:09:24 probabl-laptop kernel:  kthread+0x10c/0x128
Mar 18 09:09:24 probabl-laptop kernel:  ret_from_fork+0x10/0x20
Mar 18 09:09:24 probabl-laptop kernel: BUG: Bad page state in process kworker/9:1  pfn:f3005
Mar 18 09:09:24 probabl-laptop kernel: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xf3005
Mar 18 09:09:24 probabl-laptop kernel: flags: 0x7fffc000000000(node=0|zone=0|lastcpupid=0x1ffff) CMA
Mar 18 09:09:24 probabl-laptop kernel: raw: 007fffc000000000 fffffdffc1cc0188 fffffdffc1cc0108 0000000000000000
Mar 18 09:09:24 probabl-laptop kernel: raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
Mar 18 09:09:24 probabl-laptop kernel: page dumped because: nonzero _refcount
Mar 18 09:09:24 probabl-laptop kernel: Modules linked in: qcom_pon i2c_hid_of panel_samsung_atna33xc20(+) nvme_keyring rtc_pm8xxx reboot_mode nvmem_qcom_spmi_sdam i2c_hid nvme_auth>
Mar 18 09:09:24 probabl-laptop kernel: CPU: 9 UID: 0 PID: 152 Comm: kworker/9:1 Tainted: G    B               7.0.0-12-qcom-x1e #12-Ubuntu PREEMPT(full) 
Mar 18 09:09:24 probabl-laptop kernel: Tainted: [B]=BAD_PAGE
Mar 18 09:09:24 probabl-laptop kernel: Hardware name: LENOVO 83ED/LNVNB161216, BIOS NHCN60WW 09/11/2025
Mar 18 09:09:24 probabl-laptop kernel: Workqueue: events request_firmware_work_func
Mar 18 09:09:24 probabl-laptop kernel: Call trace:
Mar 18 09:09:24 probabl-laptop kernel:  show_stack+0x20/0x48 (C)
Mar 18 09:09:24 probabl-laptop kernel:  dump_stack_lvl+0x7c/0xb8
Mar 18 09:09:24 probabl-laptop kernel:  dump_stack+0x18/0x38
Mar 18 09:09:24 probabl-laptop kernel:  bad_page+0x134/0x158
Mar 18 09:09:24 probabl-laptop kernel:  __free_frozen_pages+0x6f8/0x858
Mar 18 09:09:24 probabl-laptop kernel:  free_contig_frozen_range+0xf8/0x190
Mar 18 09:09:24 probabl-laptop kernel:  cma_release+0xf0/0x380
Mar 18 09:09:24 probabl-laptop kernel:  dma_free_contiguous+0x108/0x120
Mar 18 09:09:24 probabl-laptop kernel:  dma_direct_free+0x120/0x1f0
Mar 18 09:09:24 probabl-laptop kernel:  dma_free_attrs+0xe0/0x2c0
Mar 18 09:09:24 probabl-laptop kernel:  qcom_scm_pas_metadata_release+0x50/0x128
Mar 18 09:09:24 probabl-laptop kernel:  qcom_pas_start+0x320/0x4c0 [qcom_q6v5_pas]
Mar 18 09:09:24 probabl-laptop kernel:  rproc_start+0xc8/0x188
Mar 18 09:09:24 probabl-laptop kernel:  rproc_fw_boot+0x170/0x1d8
Mar 18 09:09:24 probabl-laptop kernel:  rproc_boot+0x19c/0x220
Mar 18 09:09:24 probabl-laptop kernel:  rproc_auto_boot_callback+0x24/0x58
Mar 18 09:09:24 probabl-laptop kernel:  request_firmware_work_func+0x5c/0xe0
Mar 18 09:09:24 probabl-laptop kernel:  process_one_work+0x170/0x568
Mar 18 09:09:24 probabl-laptop kernel:  worker_thread+0x19c/0x338
Mar 18 09:09:24 probabl-laptop kernel:  kthread+0x10c/0x128
Mar 18 09:09:24 probabl-laptop kernel:  ret_from_fork+0x10/0x20
Mar 18 09:09:24 probabl-laptop kernel: BUG: Bad page state in process kworker/9:1  pfn:f3006
Mar 18 09:09:24 probabl-laptop kernel: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xf3006
Mar 18 09:09:24 probabl-laptop kernel: flags: 0x7fffc000000000(node=0|zone=0|lastcpupid=0x1ffff) CMA
Mar 18 09:09:24 probabl-laptop kernel: raw: 007fffc000000000 fffffdffc1cc01c8 fffffdffc1cc0148 0000000000000000
Mar 18 09:09:24 probabl-laptop kernel: raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
Mar 18 09:09:24 probabl-laptop kernel: page dumped because: nonzero _refcount
Mar 18 09:09:24 probabl-laptop kernel: Modules linked in: qcom_pon i2c_hid_of panel_samsung_atna33xc20(+) nvme_keyring rtc_pm8xxx reboot_mode nvmem_qcom_spmi_sdam i2c_hid nvme_auth>
Mar 18 09:09:24 probabl-laptop kernel: CPU: 9 UID: 0 PID: 152 Comm: kworker/9:1 Tainted: G    B               7.0.0-12-qcom-x1e #12-Ubuntu PREEMPT(full) 
Mar 18 09:09:24 probabl-laptop kernel: Tainted: [B]=BAD_PAGE
Mar 18 09:09:24 probabl-laptop kernel: Hardware name: LENOVO 83ED/LNVNB161216, BIOS NHCN60WW 09/11/2025
Mar 18 09:09:24 probabl-laptop kernel: Workqueue: events request_firmware_work_func
Mar 18 09:09:24 probabl-laptop kernel: Call trace:
Mar 18 09:09:24 probabl-laptop kernel:  show_stack+0x20/0x48 (C)
Mar 18 09:09:24 probabl-laptop kernel:  dump_stack_lvl+0x7c/0xb8
Mar 18 09:09:24 probabl-laptop kernel:  dump_stack+0x18/0x38
Mar 18 09:09:24 probabl-laptop kernel:  bad_page+0x134/0x158
Mar 18 09:09:24 probabl-laptop kernel:  __free_frozen_pages+0x6f8/0x858
Mar 18 09:09:24 probabl-laptop kernel:  free_contig_frozen_range+0xf8/0x190
Mar 18 09:09:24 probabl-laptop kernel:  cma_release+0xf0/0x380
Mar 18 09:09:24 probabl-laptop kernel:  dma_free_contiguous+0x108/0x120
Mar 18 09:09:24 probabl-laptop kernel:  dma_direct_free+0x120/0x1f0
Mar 18 09:09:24 probabl-laptop kernel:  dma_free_attrs+0xe0/0x2c0
Mar 18 09:09:24 probabl-laptop kernel:  qcom_scm_pas_metadata_release+0x50/0x128
Mar 18 09:09:24 probabl-laptop kernel:  qcom_pas_start+0x320/0x4c0 [qcom_q6v5_pas]
Mar 18 09:09:24 probabl-laptop kernel:  rproc_start+0xc8/0x188
Mar 18 09:09:24 probabl-laptop kernel:  rproc_fw_boot+0x170/0x1d8
Mar 18 09:09:24 probabl-laptop kernel:  rproc_boot+0x19c/0x220
Mar 18 09:09:24 probabl-laptop kernel:  rproc_auto_boot_callback+0x24/0x58
Mar 18 09:09:24 probabl-laptop kernel:  request_firmware_work_func+0x5c/0xe0
Mar 18 09:09:24 probabl-laptop kernel:  process_one_work+0x170/0x568
Mar 18 09:09:24 probabl-laptop kernel:  worker_thread+0x19c/0x338
Mar 18 09:09:24 probabl-laptop kernel:  kthread+0x10c/0x128
Mar 18 09:09:24 probabl-laptop kernel:  ret_from_fork+0x10/0x20


** Attachment added: "kern.log"
   https://bugs.launchpad.net/ubuntu-concept/+bug/2084191/+attachment/5953570/+files/kern.log

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https://bugs.launchpad.net/bugs/2084191

Title:
   [X1E] Request: Add support for Lenovo Yoga Slim 7x

Status in ubuntu-concept:
  Confirmed

Bug description:
  Add support for the Snapdragon X Elite powered Lenovo Yoga Slim 7x

  === Device Information ===

  Manufacturer: LENOVO
  Product Name: 83ED
  Version: Yoga Slim 714Q8X9

  === Kernel + DTB ===

  Live environment and installation work.

  === Known Issues ===

  1) Unable to boot with secure boot enabled
  Workaround: Disable secure boot using FN+F2 during device boot

  2) Blank screen on installer boot up
  Workaround: Restart manually with power button. May take up to 2 reboots to resolve.

  3) Initial GNOME installer window broken/flickering
  Workaround: set display scale to 100% (settings->displays)

  4) Install along side Windows fails on Bitlocker enabled error
  Workaround: Reboot and install with manual partitioning

  5) Keyboard not functioning in Grub boot menu post installation
  Fix: See possible and unverified fix in comment from Carlo Lazzerini dated 2024-10-21
  Workaround: Wait for the time to run out and the default (Ubuntu) item will execute. Use FN+F12 to pick between Windows/Ubuntu using BIOS boot menu

  6) Video card functioning slowly and battery indicator not working
  Fix: install firmware with qcom-firmware-extract manually

  7) Firmware install failing with Bitlocker encrypted Windows volumn
  Workaround: Manually mount Windows volume with GNOME Files app

  7) Bluetooth not functioning
  Fix: None

  8) Sound not functioning
  Fix: None for laptop
  Workaround) Attach an external audio device (eg. usb headphones)

  9) External display not detected
  Fix: None

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