sunnuntai 30. huhtikuuta 2017

GNOME 3.24 has a replacement for Redshift and xflux

You may have noticed that Wayland is incompatible with Redshift and xflux. GNOME 3.24 is the first release-version of GNOME that adds the Night Light feature to the Displays settings. It's actually pretty nice, and I'm really grateful for it.

Just run gnome-control-center display, click Night Light, and flip the switch.

Two other potential options:

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Do you clean up leftover files in ~/.config ~/.cache ~/.local after installing/removing programs?

If so, is there a good way to track leftover files for specific programs other than manually removing them?

I find I do this quite often and it gets annoying after a while having to do this manually all the time.

It would be interesting to know if I could isolate a program for those times where I need to run it only once in a while, so it doesn't leave leftovers files all over the place, I'd prefer to remove the container directory and move on.

Could this be achieved by running specific programs inside a container? If so, which ones would you recommend? I'm on Arch Linux.

Edit: seems like this is what I was looking for: http://bit.ly/2ph3Vwi

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UPDATE: More details on AMD's investigation into disabling the PSP (Platform Security Processor)

I thought people might like an update on this. AMD has been responding to a thread about the PSP on their subreddit; from what was said it sounds as though they are discussing internally how best to go about opening up the PSP and what those changes would involve from a technical & features standpoint. A few more details in that thread.

So; still no promises or timeline but personally I am encouraged - they are still discussing it several weeks later, and they are discussing what practical steps are needed. It is obviously going to take time but is at least being taken seriously and hasn't been dismissed out of hand. It is also great that they are willing to give updates on the process, even if at the moment that update is 'still working'.

Just wanted to share the news. As before - get in touch! Let AMD know we want this, that we're willing to put our money where our mouth is, and that they'd get a lot of support from the FLOSS and security communities with this change. Contact details below.

What is the PSP?

The Platform Security Processor (PSP) and its equivalent (Intel ME) is a little extra processor embedded in every chip AMD or Intel sells. It has access to memory & networking, the code can't be read and the PC won't run without it. It is a built-in backdoor to every modern PC. An excellent longer explanation here and video courtesy of u/RatherNott.

After a massive expression of interest, AMD recently indicated they will considering opening up the code and enabling Coreboot/Libreboot (open source boot software) so we can see what the PSP is doing and run without it. This would be a major positive for secure and FLOSS computing. Lots of people - e.g. Edward Snowden - want this to happen.

Contact AMD

AMD’s Twitter

AMD’s Forums

AMD’s contact page (You can find details on AMD in your country)

Best number for North America: (877) 284-1566

You can also reach them on Facebook, and contact any media outlets you think might be interested.

submitted by /u/G4nfAnspNDW8 to r/linux
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tiistai 4. huhtikuuta 2017

Silent data corruption really is real.

2 months ago I ran cshatag [1] on around 500GiBs of data. Today I rsync'd it to a new drive and re-ran cshatag. I was shocked to discover 31 files had been corrupted! Further examination revealed that corruption only happened in the transferred files, and the ones on the old drive were still OK (phew). Still very unsettling.

What do you guys think? Is rsync to blame? Or is my new drive the culprit even though it's much more expensive and higher end? [2] Would a different filesystem have prevented it (both drives were ext4)? What tests should I perform next to find out more?

[1] http://bit.ly/2nIDexf I recommend it. Very simple to use.

[2] Old drive is a 1TB WD Blue (WDC_WD10EZEX) new one is a 4TB HGST Ultrastar (HGST_HUS726040AL)

submitted by /u/MahouMaouShoujo to r/linux
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