est. 2002
Nerdzeug, Computer, Technik, Rocket Science
My Xiaomi Robot (V1) just sporadically shut down after around 20 Minutes of cleaning, stating „Error 14“. I looked it up, and Error 14 stands for battery malfunction.
Since i own a lot of 18650 battery packs I’m able to build my own battery from old laptop battery 18650s, so I decided to upload the pinout of the Xiaomi Charging Pad
It took about 6 months of work, and it’s done: gentoo/octane 1.0 has been released.
Grab your copy here: gentoo-octane-v1.0-by-rephlex.tar.xz
It’s basically a complete tarball of the system. So:
What works:
What doesn’t work yet:
IF YOU HAVE THOSE PATCHES, PLEASE CONTACT ME!
If you want to donate money, my paypal is rephlex@rephlex.de 😉
2 CommentsYesterday I encountered a customers iMac which ran crazy hot on the backside. Macs Fan Control indicated that the PSU was running on 70°C and more, and something made a buzzing sound (like a wire dangling inside a fan, which was not the case).
So I decided to set up the fans manually, the Mac now runs much cooler and still it’s not too loud.
Here’s my settings:
I learned that Apple did decide to „cool“ the PSU by blowing the CPUs hot air onto it. Duh. So since we need to make sure the PSU does not overheat and melt your display panels LED strips on the right side, we set the CPU fan speed in relation to the PSU temperature. We want the PSU to be 40°C – 53°C. The CPU temperature will also stay in this healthy temperature range.
Download Macs Fan Control on the dev’s website, on github, or from my local mirror (v4.1.12).
Leave a CommentIn case you are a Linux user unsuccessfully trying to connect to your IPMI/LOM Console using IcedTea / OpenJDK 8 or newer, you will likely run into this error.
You know, because if you’re a major hardware vendor selling expensive enterprise class servers, you don’t care about your IPMI hardware once you sold it.
Here’s how to fix the issue on the client side:
Find the java.security file. In my case it is located in /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/security/java.security
Then find the row
jdk.jar.disabledAlgorithms=MD2, MD5, RSA keySize < 1024
Comment it out, copy it, delete the word „MD5“.
1 Commentjdk.jar.disabledAlgorithms=MD2, MD5, RSA keySize < 1024
jdk.jar.disabledAlgorithms=MD2, RSA keySize < 1024
Leave a Commentssh -f user@gatewayserver.com -L 2000:internalserver:25 -N
search no further.
ss -tulpen | grep 2000
I scanned the MS-3010D Users Manual and put it up here just for future reference 😉
Maisheng-MS-3010D-Power-Supply-Users-Manual-Users-Guide-Bedienungsanleitung.pdf
Leave a CommentError:
In file included from arch/mips/kernel/syscall.c:17:
./include/linux/syscalls.h:196:18: Fehler: »sys_mips_mmap« Alias zwischen unverträglichen Funktionstypen »long int(long unsigned int, long unsigned int, long unsigned int, long unsigned int, long unsigned int, off_t)« {alias »long int(long unsigned int, long unsigned int, long unsigned int, long unsigned int, long unsigned int, long int)«} und »long int(long int, long int, long int, long int, long int, long int)« [-Werror=attribute-alias]
Solution:
Leave a Commentecho „KBUILD_CFLAGS += -Wno-error=attribute-alias“ >> Makefile
UPDATE: gentoo/octane is released. CLICK HERE!
Gentoo Linux on an SGI Octane R12000 with working hardware accelerated graphics driver, audio, and even Software RAID 😉
I should be the only person on the planet running this system right now.
If you want a copy of the system or would like to know how it’s done, contact me 😉
Start a Terminal using CTRL+ALT+T. Install some depencencies and frontend scanner tools using
sudo apt-get install xsane sane-utils simple-scan lib32stdc++6
Now download the drivers. In case brother loses them, I mirrored them here. Alternatively use the wget commands down below.
wget http://download.brother.com/welcome/dlf006646/brscan4-0.4.4-4.i386.deb -O brscan4-0.4.4-4.i386.deb
wget http://download.brother.com/welcome/dlf006651/brscan-skey-0.2.4-1.i386.deb -O brscan-skey-0.2.4-1.i386.deb
wget http://download.brother.com/welcome/dlf006654/brother-udev-rule-type1-1.0.2-0.all.deb -O brother-udev-rule-type1-1.0.2-0.all.deb
Now install the drivers you just downloaded:
sudo dpkg -i –force-architecture brscan.deb brother-udev-rule.deb
And restart your udev service:
sudo systemctl restart udev.service
All i had to do was unplug and plug in my DCP, and i could immediately scan using simple-scan in Gnome.
Leave a CommentWhen i got my shiny new ZenBook 13 UX331UN in July, i immediately wiped it and installed Ubuntu 18.04 (Bionic Beaver).
But I soon realized something was wrong with suspend: The laptop would go to sleep and over night the battery would either almost (10-ish percent) or completely drain, leaving the laptop completely powered off.
On other laptops the suspend state would eat about 5% charge per day, leaving you able to suspend around 3 weeks in theory, but something was using the battery in suspend here.
Here’s the problem analysis:
Suspend your laptop. Wake it up again. Now check the output of
sudo journalctl | grep „PM: suspend“ | tail -2
May 13 18:41:00 mex kernel: PM: suspend entry (s2idle)
May 13 20:52:36 mex kernel: PM: suspend exit
If you end up with
Your laptop is only entering „s2idle“ sleep (which is basicallynot saving much more than with blanking out screen and disabling the network). What we really want instead is the „deep“ sleep.
You can also check
cat /sys/power/mem_sleep
which yields
[ s2idle] deep
meaning the s2idle state is active in standby, because it’s written in brackets.
The permanent fix:
Edit your grub bootloader config to add a parameter to your Linux kernel when it boots. Type
sudo gedit /etc/default/grub
and replace the line GRUB_CMDLINE_LINUX_DEFAULT=“quiet splash“ with
GRUB_CMDLINE_LINUX_DEFAULT=“quiet splash mem_sleep_default=deep“
Save the file and exit. Now run
sudo update-grub && sudo reboot
To apply the changes and reboot. Test. Done.
IMPORTANT: If you now have troble waking your laptop up, DO NOT USE THE NVIDIA DRIVERS. They suck. Use noveau.
EDIT: The above works and is tested, but i now have the problem that the laptop won’t resume when on battery. When it’s on power supply it can resume. Any ideas!?
EDIT: You’re not alone: https://bugzilla.kernel.org/show_bug.cgi?id=201307 and https://askubuntu.com/questions/1071855/ubuntu-18-04-does-not-wake-up-from-suspend-on-asus-zenbook
11 CommentsIf you run Proxmox and run into
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = „en_US.utf8“
are supported and installed on your system.
perl: warning: Falling back to the standard locale („C“).
here’s your solution:
Leave a Commentexport LANGUAGE=en_US.UTF-8
export LANG=en_US.UTF-8
export LC_ALL=en_US.UTF-8
locale-gen en_US.UTF-8
dpkg-reconfigure locales -u
Add this to /etc/rhn/rhn.conf:
hibernate.enable_lazy_load_no_trans=true
Then restart spacewalk services like so:
Leave a Commentsystemctl stop tomcat
systemctl stop taskomatic
systemctl stop rhn-search
systemctl start rhn-search
systemctl start taskomatic
systemctl start tomcat
spacewalk-service restart
export PS1=“\[\033[38;5;11m\]\u\[$(tput sgr0)\]\[\033[38;5;15m\]@\h:\[$(tput sgr0)\]\[\033[38;5;6m\][\w]:\[$(tput sgr0)\]\[\033[38;5;15m\] \[$(tput sgr0)\]“
and it looks like this:
