[Nouveau] Requesting help in Nvidia 940MX card issue

[archit gupta]

Hi Nouveau Devs,

I have Nvidia 940MX graphics card on an i7 laptop.
I am observing below errors when i start Fedora and view the logs, but
didnt take them seriously. (my bad)
I am facing random crashes with i play certain (not all) games in (dual
boot) windows 10, and maybe there is a connection with the error emitted by
nouveau driver.
Any help in understanding the meaning of logs and how to fix it would be
appreciated.

Pasting the logs below

$ dmesg --raw  | grep -P "(nouveau|pcieport)"
<6>[    1.020802] pcieport 0000:00:1c.0: AER enabled with IRQ 122
<6>[    1.020819] pcieport 0000:00:1c.4: AER enabled with IRQ 123
<6>[    1.020833] pcieport 0000:00:1c.5: AER enabled with IRQ 124
<6>[    1.020852] pcieport 0000:00:1d.3: AER enabled with IRQ 126
<6>[    1.020875] pcieport 0000:00:1c.0: Signaling PME with IRQ 122
<6>[    1.020883] pcieport 0000:00:1c.4: Signaling PME with IRQ 123
<6>[    1.020890] pcieport 0000:00:1c.5: Signaling PME with IRQ 124
<6>[    1.020902] pcieport 0000:00:1d.0: Signaling PME with IRQ 125
<6>[    1.020909] pcieport 0000:00:1d.3: Signaling PME with IRQ 126
<6>[    2.492922] nouveau: detected PR support, will not use DSM
<6>[    2.492947] nouveau 0000:01:00.0: enabling device (0406 -> 0407)
<6>[    2.493098] nouveau 0000:01:00.0: NVIDIA GM108 (1180d0a2)
<6>[    2.526811] nouveau 0000:01:00.0: bios: version 82.08.6d.00.8d
<6>[    2.571894] nouveau 0000:01:00.0: fb: 4096 MiB DDR3


*<3>[    2.571935] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT
at 6013d4 [ IBUS ]<3>[    2.585938] nouveau 0000:01:00.0: bus: MMIO read of
00000000 FAULT at 10ac08 [ IBUS ]*<6>[    3.227808] nouveau 0000:01:00.0:
DRM: VRAM: 4096 MiB
<6>[    3.227809] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB

*<3>[    3.227811] nouveau 0000:01:00.0: DRM: Pointer to TMDS table
invalid*<6>[
3.227812] nouveau 0000:01:00.0: DRM: DCB version 4.0
<6>[    3.228550] nouveau 0000:01:00.0: DRM: MM: using COPY for buffer
copies
<6>[    3.228555] [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0
on minor 1
<6>[    9.618550] pcieport 0000:00:1d.3: AER: Corrected error received:
0000:00:1d.3



*<3>[    9.618579] pcieport 0000:00:1d.3: PCIe Bus Error:
severity=Corrected, type=Physical Layer, (Receiver ID)<3>[    9.618580]
pcieport 0000:00:1d.3:   device [8086:9d1b] error
status/mask=00000001/00002000<3>[    9.618581] pcieport 0000:00:1d.3:    [
0] RxErr                  (First)*<6>[   18.370866] pcieport 0000:00:1d.3:
AER: Corrected error received: 0000:00:1d.3



*<3>[   18.370878] pcieport 0000:00:1d.3: PCIe Bus Error:
severity=Corrected, type=Physical Layer, (Receiver ID)<3>[   18.370884]
pcieport 0000:00:1d.3:   device [8086:9d1b] error
status/mask=00000001/00002000<3>[   18.370889] pcieport 0000:00:1d.3:    [
0] RxErr                  (First)*<6>[   18.450492] pcieport 0000:00:1d.3:
AER: Corrected error received: 0000:00:1d.3




*<3>[   18.450504] pcieport 0000:00:1d.3: PCIe Bus Error:
severity=Corrected, type=Physical Layer, (Receiver ID)<3>[   18.450510]
pcieport 0000:00:1d.3:   device [8086:9d1b] error
status/mask=00000001/00002000<3>[   18.450514] pcieport 0000:00:1d.3:    [
0] RxErr                  (First)<3>[   22.405003] nouveau 0000:01:00.0:
bus: MMIO read of 00000000 FAULT at 6013d4 [ IBUS ]<3>[   73.345270]
nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 6013d4 [ IBUS ]*


Thanks in advance

Regards
Archit Gupta
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