I had a HP Compaq 6715b laptop lying around which I thought was dead. When pressing the power button, nothing happened, not lights, no beeps, nothing at all.
I came across a hint which seems to be a well-known fix for such issues: unplug the power cord, remove the battery and press the power button for a long time (I did it for around 30s). Afterwards, I connected the power cord without putting the battery back in. Surprise, surprise: the laptop powers up without a problem (after having reconnected the hard drive which I removed ages ago to copy the data).
If this really fixes the problem for good will have to been seen. There are reports on the internet about low-quality motherboards (especially power connection) in the HP laptops of this generation.
I’ve set up my Brother MFC-7820N ages ago to print and scan over the network from Kubuntu. Once in a while the router decides to change the IPs of my network devices. So just as a note to myself, here’s how to set up the scanner again:
- check the setup: brsaneconfig2 -q
- delete the old entry: brsaneconfig2 -r MFC-7820N
- determine new IP (as an exercise for the reader)
- set up new entry: brsaneconfig2 -a name=MFC-7820N model=MFC-7820N ip=192.168.1.35
See also Brother’s guide.
For quite some time I’ve been trying to set up NFS an my MyBook World Edition (white light) to be able to mount the shared directories directly from Ubuntu.
I’ve been using Western Digital’s MyBook World Edition (white light) for the last half a year or so. Until recently, everything worked fine but last week I noticed that the disk doesn’t spin down anymore. There seems to be constant activity on the device. Using ssh to log in, I noticed that there are quite a lot of services running which I thought I had disabled previously, including twonkymediaserver and miocrawler.