<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>In the meanwhile I have tried OpenSUSE Tumbleweed as live version:</div> <div>Kernel version 5.1.7</div> <div>xf86-video-nouveau 1.0.15</div> <div>libdrm_nouveau2 2.4.98</div> <div>libvdpau_nouveau 19.0.5</div> <div>Mesa-dri-nouveau 19.0.5</div> <div> </div> <div>Behaviour is the same:</div> <div>- In most cases, external display does not show correct screen</div> <div>- After hot-plugging the connection cable, the external display usually works until screensaver is invoked once.</div> <div> </div> <div>Do you have any idea how to narrow down the problem?</div> <div> </div> <div>Best regards</div> <div>Harald</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> Mittwoch, 19. Juni 2019 um 08:30 Uhr<br/> <b>Von:</b> "Harald Harders" <harald.harders@gmx.de><br/> <b>An:</b> 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"> <div style="font-family: Verdana;font-size: 12.0px;"> <div>One additional remark: I have the impression that the graphics output works with higher probability after unplugging and plugging the cable.</div> <div>After system start, display is usually distorted and after screensaver, display is usually distorted...</div> <div> <div> <div style="margin: 10.0px 5.0px 5.0px 10.0px;padding: 10.0px 0 10.0px 10.0px;border-left: 2.0px solid rgb(195,217,229);"> <div style="margin: 0 0 10.0px 0;"><b>Gesendet:</b> Mittwoch, 19. Juni 2019 um 12:11 Uhr<br/> <b>Von:</b> "Harald Harders" <harald.harders@gmx.de><br/> <b>An:</b> nouveau@lists.freedesktop.org<br/> <b>Betreff:</b> Re: [Nouveau] Instable graphics with GeForce GT 730M, especially on external monitor</div> <div> <div style="font-family: Verdana;font-size: 12.0px;"> <div>Please excuse that I might be not too clever in finding the problem. I'm an experienced user, but I'm not that deep into administration and hardware.</div> <div> </div> <div>When connected via DVI on the docking station: the output is as follows:</div> <div> </div> <div> <div>harders@lose:~> grep . /sys/class/drm/card*-*/status<br/> /sys/class/drm/card0-DP-1/status:disconnected<br/> /sys/class/drm/card0-DP-2/status:disconnected<br/> /sys/class/drm/card0-DP-3/status:disconnected<br/> /sys/class/drm/card0-DP-4/status:connected<br/> /sys/class/drm/card0-DP-5/status:disconnected<br/> /sys/class/drm/card0-eDP-1/status:connected<br/> /sys/class/drm/card0-HDMI-A-1/status:disconnected<br/> /sys/class/drm/card0-HDMI-A-2/status:disconnected<br/> /sys/class/drm/card0-VGA-1/status:disconnected</div> <div> </div> <div>When connected via VGA on the docking station, it is:</div> <div> </div> <div> <div>harders@lose:~> grep . /sys/class/drm/card*-*/status<br/> /sys/class/drm/card0-DP-1/status:disconnected<br/> /sys/class/drm/card0-DP-2/status:disconnected<br/> /sys/class/drm/card0-DP-3/status:disconnected<br/> /sys/class/drm/card0-DP-5/status:disconnected<br/> /sys/class/drm/card0-DP-6/status:connected<br/> /sys/class/drm/card0-eDP-1/status:connected<br/> /sys/class/drm/card0-HDMI-A-1/status:disconnected<br/> /sys/class/drm/card0-HDMI-A-2/status:disconnected<br/> /sys/class/drm/card0-VGA-1/status:disconnected</div> <div> </div> <div>When connected via VGA on the computer directly, it is:</div> <div> </div> <div> <div>harders@lose:~> grep . /sys/class/drm/card*-*/status<br/> /sys/class/drm/card0-DP-1/status:disconnected<br/> /sys/class/drm/card0-DP-2/status:disconnected<br/> /sys/class/drm/card0-eDP-1/status:connected<br/> /sys/class/drm/card0-HDMI-A-1/status:disconnected<br/> /sys/class/drm/card0-HDMI-A-2/status:disconnected<br/> /sys/class/drm/card0-VGA-1/status:connected</div> <div> </div> <div>After hot-plugging the DVI cable again, the output is as follows:</div> <div> </div> <div> <div>harders@lose:~> grep . /sys/class/drm/card*-*/status<br/> /sys/class/drm/card0-DP-1/status:disconnected<br/> /sys/class/drm/card0-DP-2/status:disconnected<br/> /sys/class/drm/card0-DP-3/status:disconnected<br/> /sys/class/drm/card0-DP-5/status:connected<br/> /sys/class/drm/card0-DP-6/status:disconnected<br/> /sys/class/drm/card0-eDP-1/status:connected<br/> /sys/class/drm/card0-HDMI-A-1/status:disconnected<br/> /sys/class/drm/card0-HDMI-A-2/status:disconnected<br/> /sys/class/drm/card0-VGA-1/status:disconnected</div> <div> </div> <div>Thus, the number of connected DP has changed from 4 to 5, while the hardware condition is identical.</div> </div> <div> </div> <div>I guess your assumption is correct that most connectors are handled as DP internally. The only thing which makes me wonder is that I have encountered the problem also with VGA on the laptop itself (which is listed as VGA-1, here.</div> <div> </div> <div>Side note: After booting my computer (with monitor connected via DVI), I had the display error. After switching to VGA on docking station, to VGA on laptop, and back to DVI on docking station, the diplay is just fine right now. That's the strange thing that the error is not showing consistently.</div> </div> </div> <div style="margin: 10.0px 5.0px 5.0px 10.0px;padding: 10.0px 0 10.0px 10.0px;border-left: 2.0px solid rgb(195,217,229);"> <div style="margin: 0 0 10.0px 0;"><b>Gesendet:</b> Mittwoch, 19. Juni 2019 um 08:09 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>Sigh ... you're on wayland. xrandr is just showing you what's passed<br/> through via Xwayland, which is not the connector names. Let's try<br/> something else...<br/> <br/> grep . /sys/class/drm/card*-*/status<br/> <br/> Should give you the status of each connector. Is it the DP-* ones that<br/> are connected, or are e.g. VGA-1 or DVI-D-1/etc connected?<br/> <br/> -ilia<br/> <br/> On Wed, Jun 19, 2019 at 2:03 AM Harald Harders <harald.harders@gmx.de> wrote:<br/> ><br/> > When the monitor is connected via DVI, the xrandr output is as follows:<br/> ><br/> > 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*+<br/> ><br/> > or verbose:<br/> ><br/> > 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<br/> ><br/> > 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?<br/> > --<br/> > Harald Harders<br/> > harald.harders@gmx.de<br/> ><br/> ><br/> > Gesendet: Dienstag, 18. Juni 2019 um 22:30 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/> > 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><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> </div> </div> </div> _______________________________________________ Nouveau mailing list Nouveau@lists.freedesktop.org <a href="https://lists.freedesktop.org/mailman/listinfo/nouveau" target="_blank">https://lists.freedesktop.org/mailman/listinfo/nouveau</a></div> </div> </div> </div> </div> _______________________________________________ Nouveau mailing list Nouveau@lists.freedesktop.org <a href="https://lists.freedesktop.org/mailman/listinfo/nouveau" target="_blank">https://lists.freedesktop.org/mailman/listinfo/nouveau</a></div> </div> </div> </div></div></body></html>