<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>When the monitor is connected via DVI, the xrandr output is as follows:</div>
<div> </div>
<div>
<div>harders@lose:~> xrandr<br/>
Screen 0: minimum 320 x 200, current 3840 x 1200, maximum 8192 x 8192<br/>
XWAYLAND0 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 310mm x 170mm<br/>
1920x1080 59.96*+<br/>
XWAYLAND1 connected 1920x1200+0+0 (normal left inverted right x axis y axis) 520mm x 320mm<br/>
1920x1200 59.88*+</div>
<div> </div>
<div>or verbose:</div>
<div> </div>
<div>
<div>harders@lose:~> xrandr --verbose<br/>
Screen 0: minimum 320 x 200, current 3840 x 1200, maximum 8192 x 8192<br/>
XWAYLAND0 connected 1920x1080+1920+0 (0x24) normal (normal left inverted right x axis y axis) 310mm x 170mm<br/>
Identifier: 0x21<br/>
Timestamp: 41572<br/>
Subpixel: unknown<br/>
Gamma: 1.0:1.0:1.0<br/>
Brightness: 0.0<br/>
Clones: <br/>
CRTC: 0<br/>
CRTCs: 0<br/>
Transform: 1.000000 0.000000 0.000000<br/>
0.000000 1.000000 0.000000<br/>
0.000000 0.000000 1.000000<br/>
filter:<br/>
non-desktop: 0<br/>
supported: 0, 1<br/>
1920x1080 (0x24) 173.000MHz -HSync +VSync *current +preferred<br/>
h: width 1920 start 2048 end 2248 total 2576 skew 0 clock 67.16KHz<br/>
v: height 1080 start 1083 end 1088 total 1120 clock 59.96Hz<br/>
XWAYLAND1 connected 1920x1200+0+0 (0x25) normal (normal left inverted right x axis y axis) 520mm x 320mm<br/>
Identifier: 0x23<br/>
Timestamp: 41572<br/>
Subpixel: unknown<br/>
Gamma: 1.0:1.0:1.0<br/>
Brightness: 0.0<br/>
Clones: <br/>
CRTC: 1<br/>
CRTCs: 1<br/>
Transform: 1.000000 0.000000 0.000000<br/>
0.000000 1.000000 0.000000<br/>
0.000000 0.000000 1.000000<br/>
filter:<br/>
non-desktop: 0<br/>
supported: 0, 1<br/>
1920x1200 (0x25) 193.250MHz -HSync +VSync *current +preferred<br/>
h: width 1920 start 2056 end 2256 total 2592 skew 0 clock 74.56KHz<br/>
v: height 1200 start 1203 end 1209 total 1245 clock 59.88Hz</div>
<div> </div>
<div>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?</div>
</div>
</div>
<div class="signature">--<br/>
Harald Harders<br/>
harald.harders@gmx.de</div>
<div>
<div>
<div name="quote" style="margin:10px 5px 5px 10px; padding: 10px 0 10px 10px; border-left:2px solid #C3D9E5; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">
<div style="margin:0 0 10px 0;"><b>Gesendet:</b> Dienstag, 18. Juni 2019 um 22:30 Uhr<br/>
<b>Von:</b> "Ilia Mirkin" <imirkin@alum.mit.edu><br/>
<b>An:</b> "Harald Harders" <harald.harders@gmx.de><br/>
<b>Cc:</b> nouveau <nouveau@lists.freedesktop.org><br/>
<b>Betreff:</b> Re: [Nouveau] Instable graphics with GeForce GT 730M, especially on external monitor</div>
<div name="quoted-content">What's the connector name when you plug in via, say, DVI? Is it "DP-1"<br/>
or is it "DVI-D-1" or whatever? You should be able to see the name in<br/>
'xrandr'. Unfortunately I don't know how the T440p is wired, there are<br/>
a few ways it could go. In some cases, even the "VGA" port is secretly<br/>
a DP -> VGA active adapter inside the laptop.<br/>
<br/>
Basically I'm trying to rule DisplayPort as a source of potential issues.<br/>
<br/>
-ilia<br/>
<br/>
On Tue, Jun 18, 2019 at 4:12 PM Harald Harders <harald.harders@gmx.de> wrote:<br/>
><br/>
> Hi Ilia,<br/>
><br/>
> 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?<br/>
><br/>
> 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?<br/>
> Do you know which distrubtion already uses a 5.0 kernel? I will try a live system, then.<br/>
><br/>
> 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.<br/>
> 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.<br/>
><br/>
> Best regards<br/>
> Harald<br/>
><br/>
> PS: I guess sending to the mailing list and omitting your personal mail address is correct, right?<br/>
><br/>
><br/>
> Gesendet: Dienstag, 18. Juni 2019 um 21:36 Uhr<br/>
> Von: "Ilia Mirkin" <imirkin@alum.mit.edu><br/>
> An: "Harald Harders" <harald.harders@gmx.de><br/>
> Cc: nouveau <nouveau@lists.freedesktop.org><br/>
> Betreff: Re: [Nouveau] Instable graphics with GeForce GT 730M, especially on external monitor<br/>
> Which kernel did you update from and to? Also, 4.12 is fairly old -<br/>
> can you try like a live usb image of some distro with e.g. a 5.0<br/>
> kernel or something?<br/>
><br/>
> How do you connect the external screen? Is it like a DP port with an<br/>
> optional dock with a variety of active DP adapters? Or is there a DP++<br/>
> port that you're plugging a DP <-> HDMI passive adapter into?<br/>
><br/>
> On Tue, Jun 18, 2019 at 3:28 PM Harald Harders <harald.harders@gmx.de> wrote:<br/>
> ><br/>
> > Dear all,<br/>
> ><br/>
> > 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.<br/>
> ><br/>
> > Installed driver version is (only 2D installed):<br/>
> > xf86-video-nouveau: 1.0.15-lp151.4.1<br/>
> > libvdpau_nouveau: 18.3.2-lp151.22.4<br/>
> > libdrm_nouveau2: 2.4.97-lp151.1.1<br/>
> ><br/>
> > 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?<br/>
> ><br/>
> > 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.<br/>
> > Can you confirm that it should be this issue? Or are there any other things I should try first?<br/>
> ><br/>
> > Best regards<br/>
> > Harald<br/>
> ><br/>
> ><br/>
> ><br/>
> ><br/>
> ><br/>
> ><br/>
> ><br/>
> ><br/>
> ><br/>
> > lose:/home/harders/download/nouveau/drm # lspci | grep -i vga<br/>
> > 00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)<br/>
> > 02:00.0 VGA compatible controller: NVIDIA Corporation GK208M [GeForce GT 730M] (rev a1)<br/>
> ><br/>
> > _______________________________________________<br/>
> > Nouveau mailing list<br/>
> > Nouveau@lists.freedesktop.org<br/>
> > <a href="https://lists.freedesktop.org/mailman/listinfo/nouveau" target="_blank">https://lists.freedesktop.org/mailman/listinfo/nouveau</a><br/>
> _______________________________________________<br/>
> Nouveau mailing list<br/>
> Nouveau@lists.freedesktop.org<br/>
> <a href="https://lists.freedesktop.org/mailman/listinfo/nouveau" target="_blank">https://lists.freedesktop.org/mailman/listinfo/nouveau</a></div>
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