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如何进一步诊断升级到 23.10 后发生的冻结问题，错误：[CRTC:131:pipe B]？

tag-icon • tag-icon 23.10
如何进一步诊断升级到 23.10 后发生的冻结问题，错误：[CRTC:131:pipe B]？ 
Nov 15 11:23:08 laptop-txtechnician rtkit-daemon[1663]: Supervising 9 threads of 6 processes of 1 users.
Nov 15 11:23:08 laptop-txtechnician rtkit-daemon[1663]: Supervising 9 threads of 6 processes of 1 users.
Nov 15 11:23:25 laptop-txtechnician kernel: i915 0000:00:02.0: [drm] *ERROR* flip_done timed out
Nov 15 11:23:25 laptop-txtechnician kernel: i915 0000:00:02.0: [drm] *ERROR* [CRTC:131:pipe B] commit wait timed out
Nov 15 11:23:30 laptop-txtechnician dbus-daemon[878]: [system] Activating service name='org.kde.powerdevil.backlighthelper' requested by ':1.253' (uid=1000 pid=3517 comm="/usr/lib/x86_64-linux-gnu/libexec/org_kde_powerdev" label="unconfined") (using servicehelper)
Nov 15 11:23:30 laptop-txtechnician dbus-daemon[878]: [system] Successfully activated service 'org.kde.powerdevil.backlighthelper'
Nov 15 11:23:39 laptop-txtechnician kernel: i915 0000:00:02.0: [drm] *ERROR* [CRTC:131:pipe B] flip_done timed out
Nov 15 11:23:50 laptop-txtechnician kernel: i915 0000:00:02.0: [drm] *ERROR* flip_done timed out
Nov 15 11:23:50 laptop-txtechnician kernel: i915 0000:00:02.0: [drm] *ERROR* [CRTC:131:pipe B] commit wait timed out
-- Boot 04ac6fe86a3d4dbf80048869961c6282 --

到目前为止，这种情况只发生在我插入第二台显示器时。

由于这种情况发生的频率非常低，所以我很难重现该问题。

系统信息：

Operating System: Kubuntu 23.10
KDE Plasma Version: 5.27.8
KDE Frameworks Version: 5.110.0
Qt Version: 5.15.10
Kernel Version: 6.5.0-10-generic (64-bit)
Graphics Platform: X11
Processors: 20 × 13th Gen Intel® Core™ i9-13900H
Memory: 15.2 GiB of RAM
Graphics Processor: Mesa Intel® Graphics
Manufacturer: ASUSTeK COMPUTER INC.
Product Name: Vivobook_ASUSLaptop TP3604VA_TP3604VA
System Version: 1.0

答案1

我发现这个讨论很有启发：https://gitlab.freedesktop.org/drm/intel/-/issues/8685

我尝试使用内核参数进行启动i915.dmc_firmware_path=，现在，插入第二台显示器后，我的计算机没有冻结。

我不知道这个参数有什么作用，但它现在拯救了我的工人的生命:-)

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