[Nouveau] Instable graphics with GeForce GT 730M, especially on external monitor

Ilia Mirkin imirkin at alum.mit.edu
Wed Jun 19 06:09:07 UTC 2019


Sigh ... you're on wayland. xrandr is just showing you what's passed
through via Xwayland, which is not the connector names. Let's try
something else...

grep . /sys/class/drm/card*-*/status

Should give you the status of each connector. Is it the DP-* ones that
are connected, or are e.g. VGA-1 or DVI-D-1/etc connected?

  -ilia

On Wed, Jun 19, 2019 at 2:03 AM Harald Harders <harald.harders at gmx.de> wrote:
>
> When the monitor is connected via DVI, the xrandr output is as follows:
>
> harders at lose:~> xrandr
> Screen 0: minimum 320 x 200, current 3840 x 1200, maximum 8192 x 8192
> XWAYLAND0 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 310mm x 170mm
>    1920x1080     59.96*+
> XWAYLAND1 connected 1920x1200+0+0 (normal left inverted right x axis y axis) 520mm x 320mm
>    1920x1200     59.88*+
>
> or verbose:
>
> harders at lose:~> xrandr --verbose
> Screen 0: minimum 320 x 200, current 3840 x 1200, maximum 8192 x 8192
> XWAYLAND0 connected 1920x1080+1920+0 (0x24) normal (normal left inverted right x axis y axis) 310mm x 170mm
>         Identifier: 0x21
>         Timestamp:  41572
>         Subpixel:   unknown
>         Gamma:      1.0:1.0:1.0
>         Brightness: 0.0
>         Clones:
>         CRTC:       0
>         CRTCs:      0
>         Transform:  1.000000 0.000000 0.000000
>                     0.000000 1.000000 0.000000
>                     0.000000 0.000000 1.000000
>                    filter:
>         non-desktop: 0
>                 supported: 0, 1
>   1920x1080 (0x24) 173.000MHz -HSync +VSync *current +preferred
>         h: width  1920 start 2048 end 2248 total 2576 skew    0 clock  67.16KHz
>         v: height 1080 start 1083 end 1088 total 1120           clock  59.96Hz
> XWAYLAND1 connected 1920x1200+0+0 (0x25) normal (normal left inverted right x axis y axis) 520mm x 320mm
>         Identifier: 0x23
>         Timestamp:  41572
>         Subpixel:   unknown
>         Gamma:      1.0:1.0:1.0
>         Brightness: 0.0
>         Clones:
>         CRTC:       1
>         CRTCs:      1
>         Transform:  1.000000 0.000000 0.000000
>                     0.000000 1.000000 0.000000
>                     0.000000 0.000000 1.000000
>                    filter:
>         non-desktop: 0
>                 supported: 0, 1
>   1920x1200 (0x25) 193.250MHz -HSync +VSync *current +preferred
>         h: width  1920 start 2056 end 2256 total 2592 skew    0 clock  74.56KHz
>         v: height 1200 start 1203 end 1209 total 1245           clock  59.88Hz
>
> When switching to VGA cable, the only changes are in the gamma, brightness, and Identifier values. I don't find anything which refers to DP or a port. What else can I do to narrow it down?
> --
> Harald Harders
> harald.harders at gmx.de
>
>
> Gesendet: Dienstag, 18. Juni 2019 um 22:30 Uhr
> Von: "Ilia Mirkin" <imirkin at alum.mit.edu>
> An: "Harald Harders" <harald.harders at gmx.de>
> Cc: nouveau <nouveau at lists.freedesktop.org>
> Betreff: Re: [Nouveau] Instable graphics with GeForce GT 730M, especially on external monitor
> What's the connector name when you plug in via, say, DVI? Is it "DP-1"
> or is it "DVI-D-1" or whatever? You should be able to see the name in
> 'xrandr'. Unfortunately I don't know how the T440p is wired, there are
> a few ways it could go. In some cases, even the "VGA" port is secretly
> a DP -> VGA active adapter inside the laptop.
>
> Basically I'm trying to rule DisplayPort as a source of potential issues.
>
> -ilia
>
> On Tue, Jun 18, 2019 at 4:12 PM Harald Harders <harald.harders at gmx.de> wrote:
> >
> > Hi Ilia,
> >
> > First I had upgraded from OpenSUSE 13.2 (where it worked) to OpenSUSE Leap 15.1. After having the same issue I have done a clean new install. The new kernel version is 4.12.14, as you suspected. In OpenSUSE, I suspect it was version 3.16.7. Unfortunately, I cannot find out anymore which nouveau version I have used before. I have a file backup of the old installation. Can I find out which nouveau version I had before?
> >
> > During all my attempts, I have also installed Ubuntu 18.04.2 with the same strange behaviour. I guess this was the 4.18 kernel version?
> > Do you know which distrubtion already uses a 5.0 kernel? I will try a live system, then.
> >
> > I have a docking station with 4 monitor ports: VGA, DVI, HDMI, Displayport. And my laptop has VGA and Mini-Displayport. My monitor (Fujitsu P24W-7 LED) has VGA, DVI, HDMI, and Displayport.
> > I have tried DVI->DVI and DisplayPort->HDMI cable on the docking station (I don't hav. In one of my attempts, I have connected the screen via analog VGA cable directly to the computer. The same effect resulted. Thus, I believe the docking station and digital connection to the monitor are not part of the problem.
> >
> > Best regards
> > Harald
> >
> > PS: I guess sending to the mailing list and omitting your personal mail address is correct, right?
> >
> >
> > Gesendet: Dienstag, 18. Juni 2019 um 21:36 Uhr
> > Von: "Ilia Mirkin" <imirkin at alum.mit.edu>
> > An: "Harald Harders" <harald.harders at gmx.de>
> > Cc: nouveau <nouveau at lists.freedesktop.org>
> > Betreff: Re: [Nouveau] Instable graphics with GeForce GT 730M, especially on external monitor
> > Which kernel did you update from and to? Also, 4.12 is fairly old -
> > can you try like a live usb image of some distro with e.g. a 5.0
> > kernel or something?
> >
> > How do you connect the external screen? Is it like a DP port with an
> > optional dock with a variety of active DP adapters? Or is there a DP++
> > port that you're plugging a DP <-> HDMI passive adapter into?
> >
> > On Tue, Jun 18, 2019 at 3:28 PM Harald Harders <harald.harders at gmx.de> wrote:
> > >
> > > Dear all,
> > >
> > > I have recently updated my Lenovo T440p with a dual graphics card (Intel Core + GeForce GT 730M) to OpenSUSE Leap 15.1. Since then, the external screen (connected either via VGA, DVI, HDMI, or DisplayPort) has a vertically stretched output which jumps horizontally in high frequency. Whenever touching any settings for the built in display (e.g. by gnome-control-center), also this screen starts incorrect display. Sometimes, however, also the external screen works as expected.
> > >
> > > Installed driver version is (only 2D installed):
> > > xf86-video-nouveau: 1.0.15-lp151.4.1
> > > libvdpau_nouveau: 18.3.2-lp151.22.4
> > > libdrm_nouveau2: 2.4.97-lp151.1.1
> > >
> > > I have followed your instructions on the TroubleShooting page, No signs for NVIDIA drivers running, everything appears to be okay. Minimal xorg.conf did not work, screenshots are okay.Unfortunately, I failed in installing the most recent nouveau version (neither /lib/modules/4.12.14-lp151.28.4-default/source nor /lib/modules/4.12.14-lp151.28.4-default/build are present on my computer even though I have installed the Kernel sources). The installed version is still quite new, isn't it?
> > >
> > > I suspect that I might have the issue you describe under "Blank monitor, flicker, snow, or other random live image corruption". I would like to make sure, however. And since you warn with regards to potential permanent damage, I would like to make sure, first.
> > > Can you confirm that it should be this issue? Or are there any other things I should try first?
> > >
> > > Best regards
> > > Harald
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > lose:/home/harders/download/nouveau/drm # lspci | grep -i vga
> > > 00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)
> > > 02:00.0 VGA compatible controller: NVIDIA Corporation GK208M [GeForce GT 730M] (rev a1)
> > >
> > > _______________________________________________
> > > Nouveau mailing list
> > > Nouveau at lists.freedesktop.org
> > > https://lists.freedesktop.org/mailman/listinfo/nouveau
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