Hi Mike, Here's what I did: sudo apt install libvncserver1=0.9.13+dfsg-2+deb11u1 sudo apt-get build-dep x11vnc apt-cache policy libvncserver-dev # check installed version is 0.9.13+dfsg-2+deb11u1 apt-get source x11vnc cd x11vnc-0.9.16/ dpkg-buildpackage # this failed to sign the package sudo dpkg -i ../x11vnc_0.9.16-7_amd64.deb pkill x11vnc x11vnc
and it all seems fine. Please let me know if I haven't done the steps you expected. I do use bullseye (with pinning for other versions at a lower priority). Thanks, Jayen On Tuesday, 7 February 2023, 03:40:58 am AEDT, Mike Gabriel <mike.gabr...@das-netzwerkteam.de> wrote: Hi Jay, On Di 27 Dez 2022 00:19:31 CET, Jay wrote: > Dear Maintainer, > > * What led up to the situation? > > I run x11vnc over a gigabit direct connection with: > > x11vnc -usepw -ncache_cr -display :0 -loop -noxdamage -shared > -nomodtweak -noshm > > Upgrading to 0.9.13+dfsg-2+deb11u1 and then reconnecting my client > caused x11vnc > to run very slowly. `*** fb_push ublen NOT ZERO: 3290940` appeared > in the log > very frequently. From my logs, I had only seen this message once before, 10 > months ago. > > * What exactly did you do (or not do) that was effective (or > ineffective)? > > Ineffective: reconnecting, restarting x11vnc, or rebooting > > Effective: downgrading to 0.9.13+dfsg-2 and reconnecting > > * What was the outcome of this action? > > reconnecting, restarting x11vnc, or rebooting: x11vnc remained sluggish and > `fb_push ublen NOT ZERO` continued to appear > > downgrading to 0.9.13+dfsg-2 and reconnecting: went back to a usable speed > > * What outcome did you expect instead? > > I did not expect a minor update to change the speed of x11vnc. It seems that a new libvncserver patch in debian/patches/0003-rfb-increase-update-buf-size.patch create an ABI incompatibility between x11vnc and libvncserver. Could you try this: rebuild x11vnc 0.9.16-7 (as found in Debian bullseye, if it's bullseye that you use) from source with the latest libvncserver version (library + dev:pkg) installed? With the rebuilt x11vnc, does the error persist? Or is it gone, then? Mike -- DAS-NETZWERKTEAM c\o Technik- und Ökologiezentrum Eckernförde Mike Gabriel, Marienthaler Str. 17, 24340 Eckernförde mobile: +49 (1520) 1976 148 landline: +49 (4351) 850 8940 GnuPG Fingerprint: 9BFB AEE8 6C0A A5FF BF22 0782 9AF4 6B30 2577 1B31 mail: mike.gabr...@das-netzwerkteam.de, http://das-netzwerkteam.de
