users February 2018

users@lists.fedoraproject.org

137 participants
139 discussions

Riddle me this: grep / regx experts
by R. G. Newbury 02 Feb '18

02 Feb '18

A bug in regx handling??? I am cleaning up some html code, using sed to standardize the formatting. I was searching for specific instances of code to amend using grep. I was looking for instances like <a name="s1s1"> Example text in a file: ( here named, quite originally, temp ) <p class="section-f"></a><a name="s8"></a>8.</b></a> And # grep -h '[0-9]s[0-9]*">' temp Returns nothing (which is the expected result: there are no [0-9]s[0-9}"> instances. BUT!!! # grep -h '[0-9]*s[0-9]*">' temp Returns the example line with the 's[0-9]">' highlighted. Note that the character before the 's' is either " or # Can anyone explain what is happening?. This isn't politics so the group [0-9] should not equal [0-9"#]. Or even [0-9\"\#]. -- R. Geoffrey Newbury 954 Owenwood Drive Mississauga, Ontario, L5H 3J2 t905-271-9600 newbury(a)mandamus.org

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secure boot disabled
by AV 02 Feb '18

02 Feb '18

I installed Fed 27 on a Dell XPS 13 9370 using Fed 27 Live on a usb stick after deleting Ubuntu 16.04 LTS that came installed on the device. I checked that secure boot + necessary conditions were set to 'enabled' in UEFI. However after install I find 'secure boot disabled'. $ dmesg | grep -i secure [ 0.000000] secureboot: Secure boot disabled [ 5.630671] Loaded UEFI:MokListRT cert 'Fedora Secure Boot CA: fde32599c2d61db1bf5807335d7b20e4cd963b42' linked to secondary sys keyring $ ls -l /sys/firmware/efi/efivars/Secure* -rw-r--r--. 1 root root 5 Jan 31 16:33 /sys/firmware/efi/efivars/SecureBoot-8be4df61-93ca-11d2-aa0d- 00e098032b8c Can this have anything to do with the fact that this notebook only has Thunderbolt 3 and USB 3.1 (C) ports so that I had to use an adapter cable ? As I did not expect this I did not check what happened under Ubuntu. (Aside from some probably neglectable ACPI hiccups everything else seems to be working OK). AV

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Organising photos visually
by Patrick O'Callaghan 02 Feb '18

02 Feb '18

Looking for some advice here. I have a large set of old slides (transparencies) which I'm currently scanning for the family, but of course many of them are out of order. Clearly they don't have EXIF information (they were taken in the 70s and 80s). I'm looking for a way to order them *visually* after scanning, but the usual apps (Digikam, Shotwell, Lightroom) don't seem to be able to do this. They only understand machine-readable sorting, e.g. by the file mod date, size, exposure data etc., none of which is useful in this case. Any ideas? poc

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Re: Testers for LCD Panel Self Refresh on laptops with Intel graphics wanted
by Hans de Goede 02 Feb '18

02 Feb '18

Hi, On 01-02-18 15:59, Don Zickus wrote: > On Thu, Feb 01, 2018 at 12:34:50PM +0100, Hans de Goede wrote: >> Hi All, >> >> For the "Improved Laptop Battery Life" feature: >> https://fedoraproject.org/wiki/Changes/ImprovedLaptopBatteryLife >> >> I'm working on for Fedora 28 I would like to also try and enable >> Panel Self Refresh on laptops with Intel graphics, some quick tests >> have shown this to save another 0.5W (when idle / nothing on the >> screen changes). This is currently off be default because it is >> known to cause issues on some devices. So I think we will probably >> need a white- or black-list. But first we need more data on this. >> >> If you can spare 10 minutes, please see my blogpost for how to test >> this and send me a mail with the info request in the blogpost: >> https://hansdegoede.livejournal.com/18653.html > > Hi Hans, > > I didn't exactly play with the psr like you asked, but your blog intrigued > me to play with powertop again. > > On my Dell 5510 laptop, which has two graphics chips (intel for display, > nvidia for external displays), setting the following to good: > > Runtime PM for PCI Device NVIDIA Corporation GM107GLM [Quadro M1000M] > > dropped me from 14W down to 6-7W. And doubled my battery life. Considering > I normally don't connect up the external display, I find this a huge > savings. > > So indirectly I want to say thank you! Interesting, nouveau.runpm defaults to 1, so I wonder why it is not doing this by default on your system. Can you file a bug against xorg-x11-drv-nouveau please and put the following people in the Cc: Ben Skeggs <bskeggs(a)redhat.com> Lyude Paul <lyude(a)redhat.com> Hans de Goede <hdegoede(a)redhat.com> Note Lyude works from the Westford office, not sure where you are located, but if you're also in Westford you might just want to drop by her desk :) Regards, Hans

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Testers for LCD Panel Self Refresh on laptops with Intel graphics wanted
by Hans de Goede 02 Feb '18

02 Feb '18

Hi All, For the "Improved Laptop Battery Life" feature: https://fedoraproject.org/wiki/Changes/ImprovedLaptopBatteryLife I'm working on for Fedora 28 I would like to also try and enable Panel Self Refresh on laptops with Intel graphics, some quick tests have shown this to save another 0.5W (when idle / nothing on the screen changes). This is currently off be default because it is known to cause issues on some devices. So I think we will probably need a white- or black-list. But first we need more data on this. If you can spare 10 minutes, please see my blogpost for how to test this and send me a mail with the info request in the blogpost: https://hansdegoede.livejournal.com/18653.html Regards, Hans

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Easily add text and arrows on images: what is the best tool?
by Frédéric 02 Feb '18

02 Feb '18

I would like to arrows/shapes + text on pictures. What is the best tool for that? With gimp, it is easy to add text but the arrow is difficult. Any tool? Cheers, F

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Re: Easily add text and arrows on images: what is the best tool?
by Alex Aycinena 01 Feb '18

01 Feb '18

> > > 5. Re: Easily add text and arrows on images: what is the best tool? > (Tom Horsley) > > ---------- Forwarded message ---------- > From: Tom Horsley <horsley1953(a)gmail.com> > To: users(a)lists.fedoraproject.org > Cc: > Bcc: > Date: Thu, 1 Feb 2018 08:44:30 -0500 > Subject: Re: Easily add text and arrows on images: what is the best tool? > On Thu, 1 Feb 2018 13:46:05 +0100 > Frédéric wrote: > > > I would like to arrows/shapes + text on pictures. What is the best > > tool for that? With gimp, it is easy to add text but the arrow is > > difficult. Any tool? > > Gimp works for me: > > Find an arrow you like in an image with a transparent background, > paste as new layer, move around and rotate as you please. > Import the image into a blank Libreoffice Draw document and scale it. Then add text and arrows.

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how to audit chmod syscall system wide? a wired problem of home directory group write permission got set
by mr.cheng 01 Feb '18

01 Feb '18

my Linux laptop started to have a problem of setting my home directory with group write permission $ ls -ld $HOMEdrwxr-x--- 34 user users 4096 Jan 30 21:45 /home/user to: $ ls -ld $HOMEdrwxrwx--- 34 user users 4096 Jan 30 21:45 /home/user This usually doesn't cause a problem but since recently it started settings group write on servers as well which I did ssh login; and once logout, the next time it doesn't allow re-login from server side sshd audit logs, says because of group write permission is set it doesn't allow my account to login; this wired problem has started settings multiple ssh servers, either at home Linux server, or Linux server in the cloud,but it isn't always reproducible, in past 30 days it happened 3 times to 4 different servers I suspect current Linux laptop has a software virus or something because it has been in use for 2 years; I re-installed the laptop with latest Fedora 27 and all started as fresh, but 2 weeks later right now, the group write permission is set again to one of my servers; I checked all bash_history and system logs, didn't see any explicit bash call of "chmod g+w ..." ; so I suspect some software is calling by chmod syscall, so I wonder anyone knows how to set a system wide chmod audit? and if a whole hard drive anti-virus scan is necessary, which anti-virus scan software do you recommend? It's weird that nothing worse than a group write permission set. No damage to system, no malfunctioning. The newly installed Linux system just functions perfect if without that.But I am kind of pretty sure it's this laptop, because whenever this laptop is down time, I use another newer laptop I bought a few months ago, nothing bad happens yet during this current 3years old laptop downtime. Thanks;

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Fedora 27 curl 7.55.1 ignore self-signed certificates
by Kleber Rocha 31 Jan '18

31 Jan '18

Hi, I have a problema with curl, in Fedora 26, I imported the certificate into the /etc/pki/ca-trust/source/anchors/, and after I run the command: update-ca-trust extract, after that, curl trust on the self-signed certificate. But, in Fedora 27, I do the same configuration, but curl don't trust in the self-signed certificate. Thank you

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