gkleds fails to start in gkrellm

[Neil Turton]

I enabled LEDs in gkrellm and expected the LEDs to appear, but they didn't. Other aspects of gkrellm continued to work correctly.

I opened the configuration dialogue, selected "Plugins" and then chose the "Install Log" tab which contained this message:
/usr/lib/gkrellm2/plugins/gkleds.so
 Error: /usr/lib/gkrellm2/plugins/gkleds.so: undefined symbol: XTestFakeKeyEvent

This symbol is provided by libXtst, but there doesn't seem to be a way for that library to get loaded into the gkrellm process.

neil@eagle:~$ nm -D /usr/lib/gkrellm2/plugins/gkleds.so|grep XTestFakeKeyEvent
                 U XTestFakeKeyEvent
neil@eagle:~$ nm -D /usr/lib/x86_64-linux-gnu/libXtst.so|grep XTestFakeKeyEvent
0000000000003400 T XTestFakeKeyEvent
neil@eagle:~$ ldd /usr/lib/gkrellm2/plugins/gkleds.so|grep tst
neil@eagle:~$ ldd /usr/bin/gkrellm|grep tst
neil@eagle:~$

More information about the system:

neil@eagle:~$ lsb_release -rd
Description: Ubuntu 18.04.1 LTS
Release: 18.04
neil@eagle:~$ apt-cache policy gkrellm gkrellm-leds
gkrellm:
  Installed: 2.3.10-1
  Candidate: 2.3.10-1
  Version table:
 *** 2.3.10-1 500
        500 http://gb.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
        100 /var/lib/dpkg/status
gkrellm-leds:
  Installed: 0.8.0-1.3
  Candidate: 0.8.0-1.3
  Version table:
 *** 0.8.0-1.3 500
        500 http://gb.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
        100 /var/lib/dpkg/status
neil@eagle:~$

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gkrellm-leds 0.8.0-1.3
ProcVersionSignature: Ubuntu 4.15.0-39.42-generic 4.15.18
Uname: Linux 4.15.0-39-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
CurrentDesktop: KDE
Date: Sat Dec 1 11:07:25 2018
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-08-13 (1935 days ago)
InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213)
SourcePackage: gkrellm-leds
UpgradeStatus: Upgraded to bionic on 2018-10-20 (41 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Reece Pollack (reece-pollack)]

As a workaround, you can preload libXtst as follows:

    LD_PRELOAD=libXtst.so.6 gkrellm