Bug 208597
| Summary: | runtime pm broken on Lenovo P1G2 with Nouveau since "PCI/PM: Assume ports without DLL Link Active train links in 100 ms" | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Karol Herbst (karolherbst) |
| Component: | PCI | Assignee: | drivers_pci (drivers_pci) |
| Status: | RESOLVED CODE_FIX | ||
| Severity: | normal | CC: | bjorn, kai.heng.feng, mika.westerberg, mszpak |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 5.7.8 | Subsystem: | |
| Regression: | Yes | Bisected commit-id: | |
| Attachments: |
lspci -vv
dmesg Wait for maximum 1100ms if child device has PCI PM disabled |
||
Created attachment 290331 [details]
dmesg
I wonder if removing "Linux-Lenovo-NV-HDMI-Audio" helps? And maybe add the 100ms delay to a larger number can help... Created attachment 290437 [details]
Wait for maximum 1100ms if child device has PCI PM disabled
Can you try this patch on (on top of v5.8-rc6 or the one that does not have the DLL link active commit reverted) and see if it works around the issue?
FYI. 5.7.11 fixed the problem with suspend on Hyperbook NH5/Clevo NH55RCQ with GeForce GTX 1660 Mobile (TU116M). That revert (https://github.com/torvalds/linux/commit/e0b8a866eba09fceea7bab7732eee7ad1077732e), which refers this issue seems to be the most probable reason of the situation improvement, thanks. If you agree that it might be related and you have some further patches which can impact my hardware I can test it. More details in the nouveau issue tracker - https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/-/issues/540 Since the nouveau issue tracker (#540) was closed as fixed in v5.8.0, I'm closing this as well. Please reopen with any details if necessary. |
Created attachment 290329 [details] lspci -vv With commit "afaff825e3a436f9d1e3986530133b1c91b54cd1" runtime pm seems to be broken. Reverting it on top of the 5.7 branch fixes the issue. Problem seems to occur when the GPU is getting accessed after it was runtime suspended. git bisect log: git bisect start # bad: [a92b984a110863b42a3abf32e3f049b02b19e350] clk: samsung: exynos5433: Add IGNORE_UNUSED flag to sclk_i2s1 git bisect bad a92b984a110863b42a3abf32e3f049b02b19e350 # good: [4da858c086433cd012c0bb16b5921f6fafe3f803] Merge branch 'linux-5.7' of git://github.com/skeggsb/linux into drm-fixes git bisect good 4da858c086433cd012c0bb16b5921f6fafe3f803 # good: [d5dfe4f1b44ed532653c2335267ad9599c8a698e] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma git bisect good d5dfe4f1b44ed532653c2335267ad9599c8a698e # good: [b24e451cfb8c33ef5b8b4a80e232706b089914fb] ipv6: fix IPV6_ADDRFORM operation logic git bisect good b24e451cfb8c33ef5b8b4a80e232706b089914fb # good: [d843ffbce812742986293f974d55ba404e91872f] nvmet: fix memory leak when removing namespaces and controllers concurrently git bisect good d843ffbce812742986293f974d55ba404e91872f # good: [be66f10a60e3ec0b589898f78a428bcb34095730] staging: wfx: fix output of rx_stats on big endian hosts git bisect good be66f10a60e3ec0b589898f78a428bcb34095730 # good: [a4482984c41f5cc1d217aa189fe51bbbc0500f98] s390/qdio: consistently restore the IRQ handler git bisect good a4482984c41f5cc1d217aa189fe51bbbc0500f98 # good: [bec32a54a4de62b46466f4da1beb9ddd42db81b8] f2fs: fix potential use-after-free issue git bisect good bec32a54a4de62b46466f4da1beb9ddd42db81b8 # bad: [044aaaa8b1b15adb397ce423a6d97920a46b3893] habanalabs: increase timeout during reset git bisect bad 044aaaa8b1b15adb397ce423a6d97920a46b3893 # good: [6fe8ed270763a6a2e350bf37eee0f3857482ed48] arm64: dts: qcom: db820c: Fix invalid pm8994 supplies git bisect good 6fe8ed270763a6a2e350bf37eee0f3857482ed48 # good: [363e8bfc96b4e9d9e0a885408cecaf23df468523] tty: n_gsm: Fix waking up upper tty layer when room available git bisect good 363e8bfc96b4e9d9e0a885408cecaf23df468523 # bad: [afaff825e3a436f9d1e3986530133b1c91b54cd1] PCI/PM: Assume ports without DLL Link Active train links in 100 ms git bisect bad afaff825e3a436f9d1e3986530133b1c91b54cd1 # good: [be0ed15d88c65de0e28ff37a3b242e65a782fd98] HID: Add quirks for Trust Panora Graphic Tablet git bisect good be0ed15d88c65de0e28ff37a3b242e65a782fd98 # first bad commit: [afaff825e3a436f9d1e3986530133b1c91b54cd1] PCI/PM: Assume ports without DLL Link Active train links in 100 ms