Xfce Forum

ShadowAce1

Member

Registered: 2020-12-01

Posts: 2

Multi-monitor with 5.9 kernel

My configuration:
Graphics:  Device-1: NVIDIA GF106M [GeForce GTX 460M] driver: nouveau v: kernel
           Display: server: Fedora Project X.org 1.20.9 driver: modesetting unloaded: fbdev,vesa resolution: 1: 1920x1080~60Hz
           2: 3840x1600~30Hz
           OpenGL: renderer: NVC3 v: 4.3 Mesa 20.2.3

I am running Fedora 33 on my rather old laptop.  It runs well.  I have a Dell 38" 3818DW monitor plugged into my HDMI port.

I am running xfce 4.14.  This setup has been great for me--up until kernel 5.9.

For some reason, when I boot into a 5.9 kernel, xfce will get me through the login screen, and show an empty desktop.  There it stops--nothing on the panel, my terminal does not load, and the mouse can move around, but clicking does nothing. I have to Ctrl-Alt-F2, log in, and reboot.

If I boot into a 5.8 kernel, everything works just perfectly.

If I unplug the Dell monitor, I can use the 5.9 kernel without any issue.  It boots up and puts me into my desktop without problems.  However, subsequently plugging in the Dell and trying to get it to configure hangs the system.

Any thoughts?  Is there a setting somewhere that can help?  When it comes to xfce, I'm strictly a user, though I do know my way arund the command line (I'm a sysadmin).

Thanks!

ToZ

Administrator

From: Canada

Registered: 2011-06-02

Posts: 11,488

Re: Multi-monitor with 5.9 kernel

Hello and welcome.

This sounds like a video driver issue. Check your logs for nouveau messages. If you are getting something like "nouveau 0000:04:00.0: DRM: base-0: timeout", then have a look at https://gitlab.freedesktop.org/drm/nouveau/-/issues/14 and https://bugzilla.redhat.com/show_bug.cgi?id=1891084.

Check "dmesg", your journal, and ~/.xsession-errors if fedora uses it.

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ShadowAce1

Member

Registered: 2020-12-01

Posts: 2

Re: Multi-monitor with 5.9 kernel

I have the following in dmesg:

[  185.988234] nouveau 0000:01:00.0: vgaarb: deactivate vga console
[  185.990054] Console: switching to colour dummy device 80x25
[  185.990240] nouveau 0000:01:00.0: NVIDIA GF106 (0c3880a1)
[  186.137830] nouveau 0000:01:00.0: bios: version 70.06.0b.00.01
[  186.138596] nouveau 0000:01:00.0: mxm: BIOS version 3.0
[  186.161341] nouveau 0000:01:00.0: fb: 1536 MiB GDDR5
[  186.226915] [TTM] Zone  kernel: Available graphics memory: 8183240 KiB
[  186.226918] [TTM] Zone   dma32: Available graphics memory: 2097152 KiB
[  186.226920] [TTM] Initializing pool allocator
[  186.226933] [TTM] Initializing DMA pool allocator
[  186.226984] nouveau 0000:01:00.0: DRM: VRAM: 1536 MiB
[  186.226988] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB
[  186.226995] nouveau 0000:01:00.0: DRM: TMDS table version 2.0
[  186.226999] nouveau 0000:01:00.0: DRM: DCB version 4.0
[  186.227004] nouveau 0000:01:00.0: DRM: DCB outp 00: 01000313 00010034
[  186.227009] nouveau 0000:01:00.0: DRM: DCB outp 06: 08014382 00020010
[  186.227013] nouveau 0000:01:00.0: DRM: DCB outp 13: 02049300 00000000
[  186.227018] nouveau 0000:01:00.0: DRM: DCB conn 00: 00000040
[  186.227021] nouveau 0000:01:00.0: DRM: DCB conn 01: 00001161
[  186.227024] nouveau 0000:01:00.0: DRM: DCB conn 02: 00001231
[  186.227026] nouveau 0000:01:00.0: DRM: DCB conn 03: 01000361
[  186.227029] nouveau 0000:01:00.0: DRM: DCB conn 04: 01000461
[  186.227032] nouveau 0000:01:00.0: DRM: DCB conn 05: 02000546
[  186.227035] nouveau 0000:01:00.0: DRM: DCB conn 06: 00010631
[  186.227038] nouveau 0000:01:00.0: DRM: DCB conn 07: 00010746
[  186.227041] nouveau 0000:01:00.0: DRM: DCB conn 08: 00020846
[  186.227044] nouveau 0000:01:00.0: DRM: DCB conn 09: 00000900
[  186.228549] nouveau 0000:01:00.0: DRM: MM: using COPY0 for buffer copies
[  186.428488] nouveau 0000:01:00.0: DRM: allocated 3840x1600 fb: 0x60000, bo 00000000b7585638
[  186.429206] fbcon: nouveaudrmfb (fb0) is primary device
[  187.783021] Console: switching to colour frame buffer device 240x67
[  187.786991] nouveau 0000:01:00.0: [drm] fb0: nouveaudrmfb frame buffer device
[  187.802215] [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on minor 0

which looks good to me.

I am not seeing the "nouveau 0000:04:00.0: DRM: base-0: timeout" message anywhere.

.xsession-errors only seems to be showing errors from my terminal emulator, terminator.

I also saw this:
###!!! [Parent][RunMessage] Error: Channel closing: too late to send/recv, messages will be lost

ToZ

Administrator

From: Canada

Registered: 2011-06-02

Posts: 11,488

Re: Multi-monitor with 5.9 kernel

I'm assuming thats the output with the 5.9 kernel running.
Is there anything of relevance in your Xorg log file?

Also, are you able to test with a non-hdmi connection between the monitor and laptop (in case its an HDMI issue)?

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