Re: [gentoo-user] Nouveau blank screen

[Håkon Alstadheim]

On 01/12/2016 10:17 PM, lee wrote:

Thanks for helping, I' try to answer in-line.
> Håkon Alstadheim <hakon@×××××××××××××××.no> writes:
>
>> I have an old but good graphics card, "NVIDIA Corporation GT200GL
>> [Quadro FX 3800]". The proprietary driver is EOL, not supported after
>> kernel 3.14.*, so I'd like to switch to nouveau. I'm having trouble
>> getting nouveau to work at all, it is giving me a blank screen and
>> apparently not grabbing my keyboard (ctrl:swapcaps has no effect).
>>
>> Nothing stands out as errors in Xorg.0.log, same errors are both under
>> nvidia and nouveau, but nvidia gives me a useable desktop. Both seem
>> to detect my monitor (benq) correctly.
>>
>> ---
>> $ grep '(EE)' Xorg.0.log.nvidia Xorg.0.log.nouveau | grep -v '(WW)'
>> Xorg.0.log.nvidia:[    39.193] (EE) systemd-logind: failed to get
>> session: PID 2112 does not belong to any known session
>> Xorg.0.log.nouveau:[    35.428] (EE) systemd-logind: failed to get
>> session: PID 2167 does not belong to any known session
>> Xorg.0.log.nouveau:[    37.322] (EE) NOUVEAU(0): [COPY] failed to
>> allocate class.
>> ---
>> The PID belongs to /usr/bin/X, see below.
>> ---
>> I'm running gentoo-sources-4.3.3 kernel with experimental feature to
>> select Haswell architecture. The host is a virtual machine running
>> under app-emulation/xen-4.6.0-r6. Driver is
>> x11-drivers/xf86-video-nouveau-1.0.11, use-flag glamor enabled.
> Have you passed the graphics card through to the VM?
Yes, it is passed through. No audio on the card, so there is only one 
function, and X manages to get EDID data from the monitor, so there is 
obviously some kind of connection in place.
> Is the user trying to run the X server in the video group?
(pardon the LOCALE setting, should be intelligible none the less :-/ .
-----
$ ls -l /dev/dri/*
crw-rw----+ 1 root video 226,   0 jan.  13 10:05 /dev/dri/card0
crw-rw----  1 root video 226,  64 jan.  13 10:05 /dev/dri/controlD64
crw-rw----+ 1 root video 226, 128 jan.  13 10:05 /dev/dri/renderD128
# id hakon
uid=1001(hakon) gid=1001(hakon) 
grupper=1001(hakon),0(root),4(adm),7(lp),10(uucp),27(sudo),29(audio),37(operator),44(video),50(staff),60(games),100(users),1011(realtime),131(lpadmin),123(fuse),139(quaggavty),143(wireshark),162(davfs2),992(wheel),85(usb)

---
Just for completeness, some more data:
---------
gt ~ # dmesg | grep -i nou
[    0.000000]     Build-time adjustment of leaf fanout to 64.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=15
[   14.036936] nouveau 0000:00:05.0: NVIDIA GT200 (0a0f80b1)
[   14.146653] nouveau 0000:00:05.0: bios: version 62.00.74.00.0b
[   14.312151] nouveau 0000:00:05.0: fb: 1024 MiB GDDR3
[   14.483500] nouveau 0000:00:05.0: DRM: VRAM: 1024 MiB
[   14.485210] nouveau 0000:00:05.0: DRM: GART: 1048576 MiB
[   14.487219] nouveau 0000:00:05.0: DRM: TMDS table version 2.0
[   14.489185] nouveau 0000:00:05.0: DRM: DCB version 4.0
[   14.491000] nouveau 0000:00:05.0: DRM: DCB outp 00: 04000320 00000028
[   14.493539] nouveau 0000:00:05.0: DRM: DCB outp 01: 01000322 00020030
[   14.495835] nouveau 0000:00:05.0: DRM: DCB outp 02: 01121336 0f220e00
[   14.498363] nouveau 0000:00:05.0: DRM: DCB outp 03: 01121332 00020e00
[   14.501005] nouveau 0000:00:05.0: DRM: DCB outp 04: 02132336 0f220d00
[   14.503523] nouveau 0000:00:05.0: DRM: DCB outp 05: 02132332 00020d00
[   14.505994] nouveau 0000:00:05.0: DRM: DCB conn 00: 00001030
[   14.507959] nouveau 0000:00:05.0: DRM: DCB conn 01: 0000a146
[   14.510084] nouveau 0000:00:05.0: DRM: DCB conn 02: 00050246
[   14.512625] nouveau 0000:00:05.0: DRM: DCB conn 03: 00000360
[   14.727073] nouveau 0000:00:05.0: DRM: MM: using CRYPT for buffer copies
[   15.344825] nouveau 0000:00:05.0: DRM: allocated 1920x1080 fb: 
0x50000, bo ffff8803ae4fb800
[   15.349163] fbcon: nouveaufb (fb0) is primary device
[   16.026158] nouveau 0000:00:05.0: fb0: nouveaufb frame buffer device
[   16.140035] [drm] Initialized nouveau 1.3.0 20120801 for 0000:00:05.0 
on minor 0
------------
Grepping for "nv" just gets me a sata_nv
>
> Systemd appears to complicate things greatly.  Have you tried to use
> startx?
Tried it now. Nvidia drivers gives me a useable twm , nouveau gives med 
no signal to the monitor (goes into sleep mode immediately).

With nvidia-drivers:
-------------
0:hakon@gt:~$ startx
xauth:  file /home/hakon/.serverauth.16044 does not exist


X.Org X Server 1.17.4
Release Date: 2015-10-28
X Protocol Version 11, Revision 0
Build Operating System: Linux 3.18.22-gentoo x86_64 Gentoo
Current Operating System: Linux gt 4.3.3-gentoo #1 SMP Mon Jan 11 
15:45:22 CET 2016 x86_64
Kernel command line: 
BOOT_IMAGE=/boot/kernel-genkernel-x86_64-4.3.3-gentoo 
root=UUID=a202adf2-9b91-4d10-97ff-ab12aeb6009f ro intel_iommu=on 
init=/usr/lib/systemd/systemd tmem net.ifnames=0 console=tty0 
console=ttyS0,115200n8
Build Date: 02 November 2015  01:48:49AM

Current version of pixman: 0.32.8
     Before reporting problems, check http://wiki.x.org
     to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
     (++) from command line, (!!) notice, (II) informational,
     (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Wed Jan 13 09:45:19 2016
(==) Using config directory: "/etc/X11/xorg.conf.d"
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
The XKEYBOARD keymap compiler (xkbcomp) reports:
 > Warning:          Type "ONE_LEVEL" has 1 levels, but <RALT> has 2 symbols
 >                   Ignoring extra symbols
Errors from xkbcomp are not fatal to the X server
^Cxinit: connection to X server lost

waiting for X server to shut down xterm: fatal IO error 104 
(Forbindelsen brutt i den andre enden) or KillClient on X server ":0"
xterm: fatal IO error 11 (Ressursen midlertidig utilgjengelig) or 
KillClient on X server ":0"
XIO:  fatal IO error 0 (Suksess) on X server ":0"
       after 903 requests (903 known processed) with 0 events remaining.
xterm: fatal IO error 104 (Forbindelsen brutt i den andre enden) or 
KillClient on X server ":0"
(II) Server terminated successfully (0). Closing log file.

xinit: unexpected signal 2
Couldn't get a file descriptor referring to the console
1:hakon@gt:~$

------------ with nouveau drivers: --------------
hakon@gammeltone:~$ ssh gt
0:hakon@gt:~$ startx
xauth:  file /home/hakon/.serverauth.2266 does not exist


X.Org X Server 1.17.4
Release Date: 2015-10-28
X Protocol Version 11, Revision 0
Build Operating System: Linux 3.18.22-gentoo x86_64 Gentoo
Current Operating System: Linux gt 4.3.3-gentoo #1 SMP Mon Jan 11 
15:45:22 CET 2016 x86_64
Kernel command line: 
BOOT_IMAGE=/boot/kernel-genkernel-x86_64-4.3.3-gentoo 
root=UUID=a202adf2-9b91-4d10-97ff-ab12aeb6009f ro intel_iommu=on 
init=/usr/lib/systemd/systemd tmem net.ifnames=0 console=tty0 
console=ttyS0,115200n8
Build Date: 02 November 2015  01:48:49AM

Current version of pixman: 0.32.8
     Before reporting problems, check http://wiki.x.org
     to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
     (++) from command line, (!!) notice, (II) informational,
     (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Wed Jan 13 09:49:27 2016
(==) Using config directory: "/etc/X11/xorg.conf.d"
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
resize called 1920 1080
The XKEYBOARD keymap compiler (xkbcomp) reports:
 > Warning:          Type "ONE_LEVEL" has 1 levels, but <RALT> has 2 symbols
 >                   Ignoring extra symbols
Errors from xkbcomp are not fatal to the X server
^Cxinit: connection to X server lost

waiting for X server to shut down XIO:  fatal IO error 0 (Suksess) on X 
server ":0"
       after 1219 requests (1219 known processed) with 0 events remaining.
xterm: fatal IO error 104 (Forbindelsen brutt i den andre enden) or 
KillClient on X server ":0"
xterm: fatal IO error 104 (Forbindelsen brutt i den andre enden) or 
KillClient on X server ":0"
xterm: fatal IO error 104 (Forbindelsen brutt i den andre enden) or 
KillClient on X server ":0"
(II) Server terminated successfully (0). Closing log file.

xinit: unexpected signal 2
--------------


> Can you attach x11vnc to the session (assuming that one does exist) to
> see what would be on the screen from a remote machine?
>
>
If this issue last long enough, I'll try that. For now the proprietary 
driver is working, even under recent kernels.