[Bug 2163180] [NEW] ThinkPad P1 Gen 7 (Intel Meteor Lake) black screen after suspend (s2idle) on XUbuntu 26.04 Edit

Public bug reported: Exactly same as bug #2161937 but then on Xubuntu 26.04 fully updated. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2161937 Suspend/resume consistently fails to restore the display on a Lenovo ThinkPad P1 Gen 7 with Intel 135H CPU (no dedicated GPU). The system appears to resume successfully (keyboard remains responsive, Caps Lock light toggles), but the internal display remains black. ThinkPad P1 Gen 7 / 21KVCTO1WW BIOS N48ET34W 1.21, EC N48HT28W Intel Meteor Lake-P Arc / i915 Ubuntu kernel 7.0.0-29-generic Only s2idle available Intermittent black display after suspend/resume Caps Lock LED reacts; TTY and external display do not recover i915: Timeout waiting for DDI BUF A; Timed out waiting for DP idle patterns; flip_done timed out; vblank and CRTC commit timeouts i915.enable_psr=0 does not help ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: linux-image-7.0.0-29-generic 7.0.0-29.29 ProcVersionSignature: Ubuntu 7.0.0-29.29-generic 7.0.12 Uname: Linux 7.0.0-29-generic x86_64 ApportVersion: 2.34.1-0ubuntu0.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: dcr 2403 F.... pipewire dcr 2418 F.... wireplumber /dev/snd/seq: dcr 2403 F.... pipewire CasperMD5CheckResult: pass CurrentDesktop: XFCE Date: Mon Aug 10 18:19:54 2026 InstallationDate: Installed on 2026-08-06 (4 days ago) InstallationMedia: Xubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1) MachineType: LENOVO 21KVCTO1WW ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-29-generic root=UUID=74d2b5cc-421d-465a-91f7-631a38aec25f ro i915.enable_dc=0 quiet splash SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/02/2026 dmi.bios.release: 1.20 dmi.bios.vendor: LENOVO dmi.bios.version: N48ET33W (1.20 ) dmi.board.asset.tag: Not Available dmi.board.name: 21KVCTO1WW dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.15 dmi.modalias: dmi:bvnLENOVO:bvrN48ET33W(1.20):bd03/02/2026:br1.20:efr1.15:svnLENOVO:pn21KVCTO1WW:pvrThinkPadP1Gen7:rvnLENOVO:rn21KVCTO1WW:rvrNotDefined:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21KV_BU_Think_FM_ThinkPadP1Gen7:pfaThinkPadP1Gen7: dmi.product.family: ThinkPad P1 Gen 7 dmi.product.name: 21KVCTO1WW dmi.product.sku: LENOVO_MT_21KV_BU_Think_FM_ThinkPad P1 Gen 7 dmi.product.version: ThinkPad P1 Gen 7 dmi.sys.vendor: LENOVO ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug resolute -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2163180 Title: ThinkPad P1 Gen 7 (Intel Meteor Lake) black screen after suspend (s2idle) on XUbuntu 26.04 Edit Status in linux package in Ubuntu: New Bug description: Exactly same as bug #2161937 but then on Xubuntu 26.04 fully updated. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2161937 Suspend/resume consistently fails to restore the display on a Lenovo ThinkPad P1 Gen 7 with Intel 135H CPU (no dedicated GPU). The system appears to resume successfully (keyboard remains responsive, Caps Lock light toggles), but the internal display remains black. ThinkPad P1 Gen 7 / 21KVCTO1WW BIOS N48ET34W 1.21, EC N48HT28W Intel Meteor Lake-P Arc / i915 Ubuntu kernel 7.0.0-29-generic Only s2idle available Intermittent black display after suspend/resume Caps Lock LED reacts; TTY and external display do not recover i915: Timeout waiting for DDI BUF A; Timed out waiting for DP idle patterns; flip_done timed out; vblank and CRTC commit timeouts i915.enable_psr=0 does not help ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: linux-image-7.0.0-29-generic 7.0.0-29.29 ProcVersionSignature: Ubuntu 7.0.0-29.29-generic 7.0.12 Uname: Linux 7.0.0-29-generic x86_64 ApportVersion: 2.34.1-0ubuntu0.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: dcr 2403 F.... pipewire dcr 2418 F.... wireplumber /dev/snd/seq: dcr 2403 F.... pipewire CasperMD5CheckResult: pass CurrentDesktop: XFCE Date: Mon Aug 10 18:19:54 2026 InstallationDate: Installed on 2026-08-06 (4 days ago) InstallationMedia: Xubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1) MachineType: LENOVO 21KVCTO1WW ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-29-generic root=UUID=74d2b5cc-421d-465a-91f7-631a38aec25f ro i915.enable_dc=0 quiet splash SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/02/2026 dmi.bios.release: 1.20 dmi.bios.vendor: LENOVO dmi.bios.version: N48ET33W (1.20 ) dmi.board.asset.tag: Not Available dmi.board.name: 21KVCTO1WW dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.15 dmi.modalias: dmi:bvnLENOVO:bvrN48ET33W(1.20):bd03/02/2026:br1.20:efr1.15:svnLENOVO:pn21KVCTO1WW:pvrThinkPadP1Gen7:rvnLENOVO:rn21KVCTO1WW:rvrNotDefined:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21KV_BU_Think_FM_ThinkPadP1Gen7:pfaThinkPadP1Gen7: dmi.product.family: ThinkPad P1 Gen 7 dmi.product.name: 21KVCTO1WW dmi.product.sku: LENOVO_MT_21KV_BU_Think_FM_ThinkPad P1 Gen 7 dmi.product.version: ThinkPad P1 Gen 7 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2163180/+subscriptions