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Jul
23
comment Linux USB device won't work after power up without replugging
It seems the BIOS is messing up with the device. If it is plugged just when the BIOS runs the boodloader, it works.
Jul
21
comment Linux USB device won't work after power up without replugging
There is an option in the BIOS to keep it from initalising USB devices. It seem to fix the issue, but introducing a cruft of new ones.
Jul
21
comment Linux USB device won't work after power up without replugging
modprobe does not help, as all usb modules ehci, xhci and ohci are built into kernel on Ubuntu 14.04.
Jul
21
comment Linux USB device won't work after power up without replugging
dmesg says like [ 1.547635] usb 1-6: new low-speed USB device number 5 using xhci_hcd [ 1.549013] usb 1-6: Device not responding to setup address. [ 1.955468] usb 1-6: device not accepting address 5, error -71
Jul
21
comment Linux USB device won't work after power up without replugging
This behaveour even holds when the device is connected by an USB hub.
Jul
21
asked Linux USB device won't work after power up without replugging
Jul
19
asked Linux autostart application focus
Jul
19
asked Chrome browser kiosk mode initial focus on Linux
Jun
29
comment Snapshot a frequently changing file on linux
It is possible to snapshot the file by mv, but that would lead to the problems mentioned above. Maybe the file used for reading and for writing can be two different ones, so the file just written may be copied while writing just fast enough to be repoened for reading the next round. If there would be a special kind of fifo, that would dissect read and write access, one could maybe use tee to capture the output to two files and cat to present the process the last written file for reading.
Jun
29
comment Snapshot a frequently changing file on linux
It is an image that is sequentially updated. So the app most likely reads the full file, and completely writes it afterwards. So if the file is taken away in the meantime, it would be recreated I guess. If however it would go away before reading, it would crash or recreate an empty image which would then replace the real one.
Jun
28
accepted Create empty truecolor PNG with ImageMagick
Jun
28
comment Create empty truecolor PNG with ImageMagick
Ah cool. So the internal color format is actually not used, but the selection is made by the output format. The png24: worked well for me. Thanks!
Jun
28
asked Snapshot a frequently changing file on linux
Jun
28
asked Create empty truecolor PNG with ImageMagick
Jun
24
comment Show Octave plot from shell script
Ah I forgot to mention the scripts where non-interactive. Added that. I'm sorry!
Jun
24
revised Show Octave plot from shell script
clarification
Jun
24
comment How to rsync root files over non-root ssh?
Yes, the target should equal the source machine. If synching config files in /etc for example, they should keep root ownership.
Jun
24
asked Use rsync on bare device
Jun
24
asked How to rsync root files over non-root ssh?
Jun
2
comment Select gateway used for certain commands on Linux
Ugh, kinda laborious. Nevertheless, I will try it out these days.