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From:   Sid Boyce <sboyce@blueyonder.co.uk>
Organization: blueyonder.co.uk
Subject: 5.6-rc3 nouveau failure, 5.6-rc2 OK
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Date:   Thu, 27 Feb 2020 00:18:21 +0000
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[94.455712] [T411] nouveau 0000:07:00.0 disp ctor failed, -12

Welcome to openSUSE Tumbleweed 20200224 - Kernel 5.6.0-rc3 (tty1)

ens3s0: 192.168.10.214 .......

login:


I can login here but X does not start -- lspci

07:00.0 VGA compatible controller: NVIDIA Corporation TU117 [GeForce GTX 
1650] (rev a1)

from dmesg:-

[Wed Feb 26 22:42:39 2020] nouveau 0000:07:00.0: NVIDIA TU117 (167000a1)
[Wed Feb 26 22:42:39 2020] nouveau 0000:07:00.0: bios: version 
90.17.2a.00.39
[Wed Feb 26 22:44:12 2020] nouveau 0000:07:00.0: disp ctor failed, -12
[Wed Feb 26 22:44:12 2020] nouveau: probe of 0000:07:00.0 failed with 
error -12


Another box with VGA compatible controller: NVIDIA Corporation GP107 
[GeForce GTX 1050 Ti] (rev a1) boots to graphical environment with 5.6-rc3.

tindog:~ # dmesg -T|grep nouveau
[Mon Feb 24 12:50:16 2020] nouveau 0000:07:00.0: NVIDIA GF106 (0c3100a1)
[Mon Feb 24 12:50:16 2020] nouveau 0000:07:00.0: bios: version 
70.26.37.00.01
[Mon Feb 24 12:50:16 2020] nouveau 0000:07:00.0: fb: 4096 MiB GDDR5
[Mon Feb 24 12:50:17 2020] nouveau 0000:07:00.0: DRM: VRAM: 4096 MiB
[Mon Feb 24 12:50:17 2020] nouveau 0000:07:00.0: DRM: GART: 1048576 MiB
[Mon Feb 24 12:50:17 2020] nouveau 0000:07:00.0: DRM: TMDS table version 2.0
[Mon Feb 24 12:50:17 2020] nouveau 0000:07:00.0: DRM: DCB version 4.0
[Mon Feb 24 12:50:17 2020] nouveau 0000:07:00.0: DRM: DCB outp 00: 
02000300 00000000
[Mon Feb 24 12:50:17 2020] nouveau 0000:07:00.0: DRM: DCB outp 01: 
01000302 00020030
[Mon Feb 24 12:50:17 2020] nouveau 0000:07:00.0: DRM: DCB outp 02: 
04011380 00000000
[Mon Feb 24 12:50:17 2020] nouveau 0000:07:00.0: DRM: DCB outp 03: 
08011382 00020030
[Mon Feb 24 12:50:17 2020] nouveau 0000:07:00.0: DRM: DCB outp 04: 
02022362 00020010
[Mon Feb 24 12:50:17 2020] nouveau 0000:07:00.0: DRM: DCB conn 00: 00001030
[Mon Feb 24 12:50:17 2020] nouveau 0000:07:00.0: DRM: DCB conn 01: 00000100
[Mon Feb 24 12:50:17 2020] nouveau 0000:07:00.0: DRM: DCB conn 02: 00002261
[Mon Feb 24 12:50:17 2020] nouveau 0000:07:00.0: DRM: MM: using COPY0 
for buffer copies
[Mon Feb 24 12:50:17 2020] nouveau 0000:07:00.0: DRM: allocated 
1920x1080 fb: 0x60000, bo 000000008db05e25
[Mon Feb 24 12:50:17 2020] fbcon: nouveaudrmfb (fb0) is primary device
[Mon Feb 24 12:50:17 2020] nouveau 0000:07:00.0: fb0: nouveaudrmfb frame 
buffer device
[Mon Feb 24 12:50:17 2020] [drm] Initialized nouveau 1.3.1 20120801 for 
0000:07:00.0 on minor 0

Regards

Sid.

-- 
Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot
Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support
Senior Staff Specialist, Cricket Coach
Microsoft Windows Free Zone - Linux used for all Computing Tasks