Re: [gentoo-user] Nouveau blank screen

[Håkon Alstadheim]

Just for the record: Tried switcing off gfx_passthru, and over to 
device-model qemu-xen. This gave me another (virtual) graphics-card on 
this vm. After adding BusID  "00:05:0" to the device section, I'm right 
back where I started :-(



On 01/13/2016 10:19 AM, Håkon Alstadheim wrote:
>
> 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.
>