New lens try-out


Yesterday another worker arrived to my lens collection which I use actively. It's zoom lens in very nice condition which I bought on eBay - Vivitar f3.8/70-200mm MC. I am curious how it will perform outdoor in terms of infinity sharpness/resolution, chromatic aberration, etc...

This shot was taken with wide-open aperture and I like its sharpness.

cameraPentax K10D
lenses Vivitar f3.8/70-200mm MC

Chillin'

author: niekto@niekde.sk (Jaroslav Petráš)

date: Sat, 14 Nov 2015 16:34:00 +0100

link: CyberAsylum.eu/photography-new-lens-try--out

Autumn sunday walk


Another short trip during this weekend around Devínska Nová Ves (Bratislava, Slovakia). I took some shots and smoked my pipe afterwards. Very relaxing. Visibility wasn't good because of haze which is very typical for this region.

cameraPentax K10D
lenses Tamron f2.5/24mm 01BB
SMC Pentax-A f1.7/50mm
Hoya HMC Zoom f4/80-200mm

Autumn scenery

Autumn scenery

Autumn scenery

Autumn scenery

Colorful dragon

Dragons


author: niekto@niekde.sk (Jaroslav Petráš)

date: Sun, 01 Nov 2015 18:02:00 +0100

link: CyberAsylum.eu/photography-autumn-sunday-walk

Short autumn trip to Eckartsau


Not much time I have during this little trip so I made only two shots which are worth to keep. Also I think I found Tammy's weak spot - that flare you can see in picture with statue :)

cameraPentax K10D
lenses Tamron f2.5/24mm 01BB

Sit and watch leafs dying...

Torchbearer

author: niekto@niekde.sk (Jaroslav Petráš)

date: Sat, 31 Oct 2015 19:20:00 +0100

link: CyberAsylum.eu/photography-short-autumn-trip-to-eckartsau

Creative time with GIMP

I had creative time yesterday so I made this minimalistic digital painting in GIMP.
Grave

author: niekto@niekde.sk (Jaroslav Petráš)

date: Wed, 07 Oct 2015 12:02:20 +0200

link: CyberAsylum.eu/creative-time-with-gimp

How to start XBMC (kodi) with systemd without login manager

Long story short: My HTPC is running on unstable/experimental branch of Debian GNU/Linux OS and I decided to update it again.
It ended with this message xf86OpenConsole: Cannot open virtual console 7 when XBMC had to start via init script (by invoking xinit with user privs).
Upon long examination I decided to rewrite my configuration in systemd way.

I made two new services which I placed to /etc/systemd/system named xorg.service and xbmc.service
Their content is described bellow.

xorg.service
 
[Unit]
Description=Launch Xorg server
After=network.target sound.target
 
[Service]
Type=simple
ExecStart=/usr/bin/X :0 vt7
 
[Install]
WantedBy=multi-user.target
 
This service starts Xorg server after network and sound services when system is entering to multi-user level.

xbmc.service
 
[Unit]
Description=Launch XBMC
After=xorg.service
Requires=xorg.service
 
[Service]
Type=simple
User=xbmc
Group=xbmc
Environment="DISPLAY=:0"
ExecStart=/usr/bin/kodi-standalone
KillSignal=SIGTERM
SendSIGHUP=1
Restart=on-abort
RestartSec=5
 
[Install]
WantedBy=multi-user.target
 
This service starts XBMC but only when Xorg service is running (note the Requires option).
XBMC is started with privileges of xbmc user and group which are present on my system.
There is also environment variable $DISPLAY set to :0 (which is display identifier).
These options are pretty self-describing but I have to note the SendSIGHUP which is interesting one,
because when this option is set, systemd will send SIGHUP signal to all remaining forks,
so they will exit quickly when main process isn't present. This solved slow XBMC shutdowns for me within this setup.

Ensure that services will start with system.
systemctl daemon-reload
systemctl enable xorg
systemctl enable xbmc

... and finaly
systemctl xbmc start

In summary I have XBMC running without root privileges in pure and clean X session without any tools which can be easily broken in such experimental environment.

author: niekto@niekde.sk (Jaroslav Petráš)

date: Sat, 03 Oct 2015 14:55:00 +0200

link: CyberAsylum.eu/how-to-start-xbmc-via-systemd-without-login-manager