Unanswered Questions

59,411 questions with no upvoted or accepted answers
24 votes
0 answers
2k views

Why does ZFS scrub not complete?

First off let's start with what I'm running. This is a home media server running Ubuntu 16.10. I have one pool of mirrored 6 terabyte drives that are about half full. I built the system about a month ...
19 votes
0 answers
14k views

Chrome crashing with open /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq: No such file or directory (2)

When I open Chrome, with a Python module named subprocess, it crashes and gives me these errors: [1103/163807.480539:ERROR:file_io_posix.cc(144)] open /sys/devices/system/cpu/cpu0/cpufreq/...
18 votes
1 answer
3k views

zsh can't input to terminal when piping stdin and stdout with variable command that has tty output

System info: macOS Sierra 10.12.6 zsh 5.4.2 (x86_64-apple-darwin16.7.0) GNU bash, version 4.4.12(1)-release (x86_64-apple-darwin16.3.0) Scroll to the EXAMPLES at the bottom if you just want to dig ...
17 votes
1 answer
2k views

Is it wrong to think of "memfd"s as accounted "to the process that owns the file"?

https://dvdhrm.wordpress.com/2014/06/10/memfd_create2/ Theoretically, you could achieve [memfd_create()] behavior without introducing new syscalls, like this: int fd = open("/tmp", O_RDWR | ...
17 votes
1 answer
2k views

wpa_supplicant end process if wrong password detected

Normally when I run wpa_supplicant I'll get some output like this: Successfully initialized wpa_supplicant ioctl[SIOCSIWAP]: Operation not permitted ioctl[SIOCSIWENCODEEXT]: Invalid argument ioctl[...
17 votes
4 answers
7k views

Microphone volume on USB soundcard very low, snd_usb_audio options?

I have a C-Media USB soundcard installed on my Raspberry Pi: Bus 001 Device 004: ID 0d8c:0008 C-Media Electronics, Inc.. It is a USB cable with an XLR end on the other side, to which I have an XLR ...
17 votes
2 answers
6k views

Fractional scaling in GNOME + Wayland above 200%

I've successfully enabled fractional scaling on my GNOME 3.38 + Wayland in Arch as stated here: https://wiki.archlinux.org/index.php/HiDPI#Wayland However, in gnome control center it now only shows ...
15 votes
1 answer
3k views

How to exit from videotest in the grub?

I am checking different video resolutions in the grub menu by using videotest and vbetest programs and can't go back to the grub command line, after using this programs. System doesn't respond - like ...
14 votes
1 answer
4k views

How can I make a device available inside a systemd-nspawn container with user namespacing?

I would like to mount an encrypted image file using cryptsetup inside a systemd-nspawn container. However, I get this error message: [root@container ~]# echo $key | cryptsetup -d - open luks.img luks ...
14 votes
1 answer
702 views

Disabling system modal behaviour of GNOME 3 password prompts

When GNOME Keyring, needs a password to add an SSH key to the agent, it pops up a system modal prompt to get the password from you. I use KeePass, so this means that if I forgot to copy the password ...
13 votes
0 answers
603 views

How to increase sound volume on eMac P69 running FreeBSD 10.3?

I've got FreeBSD 10.3 (PowerPC) installed on eMac P69. I'm using MPlayer to test loudness. I already use -af volume=10:1-like options but they tend to distort sound pretty quickly + it is not really ...
13 votes
1 answer
3k views

NetworkManager Default Connection Settings

I'm trying to modify NetworkManager's default DNS settings so that whenever I add a new connection it uses 127.0.0.1 instead of the default DNS for that connection. I still would like to be able to ...
13 votes
1 answer
8k views

NVMe PCIe disk power cycling

I want to test an NVMe SSD that is connected to a PCIe slot of my motherboard. The test procedure is a specific algorithm that writes workloads to the SSD, while the SSD is exposed to radiation (e.g., ...
13 votes
3 answers
965 views

Emacs slow loading time with AUCTeX on TeX files

I installed the auctex and emacs packages on two Xubuntu 14.04 computers, both of which have been working fine. Emacs itself works fine on both, but now with the auctex package installed, when I load ...
13 votes
1 answer
8k views

Graph is too large for cairo-renderer bitmaps Error

I'm trying to use pyreverse to generate images of UML diagrams for a project source code. When I run the pyreverse command and specify to generate .png images, it runs, and then, after a while, it ...

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