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Bug 932719 - nouveau 0000:01:00.0: fifo: DMA_PUSHER - ch 4 [sddm-greeter
Summary: nouveau 0000:01:00.0: fifo: DMA_PUSHER - ch 4 [sddm-greeter
Status: RESOLVED UPSTREAM
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Kernel Bug Wranglers and Kernel Maintainers
URL: https://github.com/sddm/sddm/issues/1936
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2024-05-25 08:09 UTC by Erik
Modified: 2024-06-14 16:18 UTC (History)
0 users

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Package list:
Runtime testing required: ---

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Description Erik 2024-05-25 08:09:59 UTC 
After upgrading from 6.1.91-gentoo to 6.6.31-gentoo, sddm shows garbage instead of text and dmesg shows this:
[   54.031343] nouveau 0000:01:00.0: fifo: DMA_PUSHER - ch 4 [sddm-greeter[429]] get 0000216000 put 0000216088 ib_get 00000007 ib_put 00000008 state 80000024 (err: INVALID_CMD) push 00406040
[   54.199976] nouveau 0000:01:00.0: fifo: DMA_PUSHER - ch 4 [sddm-greeter[429]] get 0000216088 put 0000217a18 ib_get 00000009 ib_put 0000000a state 80000024 (err: INVALID_CMD) push 00406040
[   54.201171] nouveau 0000:01:00.0: fifo: DMA_PUSHER - ch 4 [sddm-greeter[429]] get 0000217a18 put 0000218f28 ib_get 0000000b ib_put 0000000c state 80000024 (err: INVALID_CMD) push 00406040

Reproducible: Always
Comment 1 Erik 2024-05-25 08:12:28 UTC 
earlier info from dmesg:
[    4.770249] nouveau 0000:01:00.0: vgaarb: deactivate vga console
[    4.777176] Console: switching to colour dummy device 240x75
[    4.777253] nouveau 0000:01:00.0: NVIDIA G96 (096400c1)
[    4.807352] nouveau 0000:01:00.0: bios: version 62.94.8d.00.0b
[    4.828363] nouveau 0000:01:00.0: fb: 512 MiB GDDR3
[    4.911287] nouveau 0000:01:00.0: DRM: VRAM: 512 MiB
[    4.911293] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB
[    4.911300] nouveau 0000:01:00.0: DRM: TMDS table version 2.0
[    4.911304] nouveau 0000:01:00.0: DRM: DCB version 4.0
[    4.911309] nouveau 0000:01:00.0: DRM: DCB outp 00: 01000323 00010034
[    4.911314] nouveau 0000:01:00.0: DRM: DCB outp 01: 02011300 00000028
[    4.911319] nouveau 0000:01:00.0: DRM: DCB conn 00: 00000041
[    4.911324] nouveau 0000:01:00.0: DRM: DCB conn 01: 00000100
[    4.913934] nouveau 0000:01:00.0: DRM: MM: using CRYPT for buffer copies
Comment 2 Mike Pagano gentoo-dev 2024-05-29 17:28:15 UTC 
Can you attach the full dmesg and test with 6.9.X (latest, which is 6.9.2 as of this writing).

You could do a bisect between 6.1.91 and 6.6.31, but that's quite a jump
Comment 3 Mike Pagano gentoo-dev 2024-06-14 16:18:42 UTC 
We'll watch the upstream bug and backport any fixes identified.