Messages in this thread | | | From | Vojtěch Maršál <> | Date | Thu, 29 Jun 2023 19:59:12 +0200 | Subject | [BUGREPORT] Issue with FM350_GL modem and suspend/resume on Linux kernel 6.1 |
| |
Hello Linux Kernel Mailing List,
I am writing to seek assistance regarding a persistent issue I have been facing with modem functionality and the suspend/resume feature on my Linux system running kernel version 6.1. I have already searched through bug reports but have not found a resolution or response to a similar issue. I would appreciate any guidance or insights you can provide to help me resolve this problem.
Description of the issue: Whenever I set my notebook to deep sleep mode, the system suspends successfully for the first time. However, subsequent attempts to suspend the system result in an error related to the modem. The error message in the kernel logs is as follows:
[ 375.151668] mtk_t7xx 0000:2c:00.0: [PM] Exiting suspend, modem in invalid state [ 375.151680] mtk_t7xx 0000:2c:00.0: PM: pci_pm_suspend(): t7xx_pci_pm_suspend+0x0/0x20 [mtk_t7xx] returns -14 [ 375.151719] mtk_t7xx 0000:2c:00.0: PM: dpm_run_callback(): pci_pm_suspend+0x0/0x1b0 returns -14 [ 375.151736] mtk_t7xx 0000:2c:00.0: PM: failed to suspend async: error -14 [ 375.152120] PM: Some devices failed to suspend, or early wake event detected
Steps taken so far:
- Updated kernel and modem drivers to the latest available versions. - Checked for BIOS updates for my notebook model, but none were available. - Disabled power management for the modem by adding "options mtk_t7xx power_save=0" to a configuration file, but the issue persisted.
I have also confirmed that there is an existing bug report related to this issue in Bugzilla, but it has been unanswered for an extended period.
https://bugzilla.kernel.org/show_bug.cgi?id=216523
https://bugzilla.kernel.org/show_bug.cgi?id=217590
Additional details:
Notebook model: ASUS Expertbook B2 Modem model: FM350_GL Linux distribution: Ubuntu 20.04LTS Kernel version: Linux 6.1
I kindly request your assistance in resolving this issue or providing any further troubleshooting steps that may help. I am open to any suggestions or insights you can offer. Please let me know if any additional information is required.
Thank you for your attention and support.
Best regards, Vojtěch Maršál
| |