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2017-09-25 17:27:46 -0500 commented answer Slow WiFi on Fedora 26

Think I got it. I went back to my initial install USB live environment. The kernel was 4.11.8-300.fc26.x8664, and networking worked perfectly. Using your earlier tips I saw a kernel change to 4.12.8-300.fc26.x86 64 about the time I started seeing problems. Looking at kernel change logs I saw some code changes involving RealTek (my WiFi NIC) devices. So I filed a bug report https://bugzilla.redhat.com/show_bug.... , already got a response, and things are looking good so far. Thanks for the help/tips on this one https://ask.fedoraproject.org/en/user... .

2017-09-24 11:05:49 -0500 commented answer Slow WiFi on Fedora 26

Researching the net & this support forum I came to realize there are a fair number of config files that affect operation & performance of these modern Linux environments. But that soon led to the conclusion that it must be a kernel driver issue. And that brought me back here & the question I posted. Thanks for the tips on how to use DNF, it's just what I needed to dig deeper into this issue. The whole sysadmin environment is somewhat overwhealming to me after being away from Linux/Unix environments for 10+ years. Things have gotten a lot more sophisticated.

2017-09-24 10:50:31 -0500 commented answer Slow WiFi on Fedora 26

"What's the kernel version in tested Ubuntu?" Latest 16.04.3 LTS

"Your WiFi driver is built into kernel, so it's where you should look first.", Maybe, maybe not, could have been hardware, hence the window-10/Ubuntu tests I mentioned. (FWIW I tried a live environment of th latest Mint, it to performed slowly). So, with Windows & Ubuntu seemingly confirming that the HW is OK it was time for research to determine if the problem was known & possibly fixed. No joy. --MORE-

2017-09-23 15:01:28 -0500 asked a question Slow WiFi on Fedora 26

Things had been working fine until the last week of two. Now my Fedora 26 Wifi runs at about 1/2 speed. My machine is dual boot and when running Windows 10 network speeds are at (or above) my ISPs stated speeds 5up/50down. But when running Fedora26 speeds are about 1/2 that, sometimes worse. I'm using OOKLA's speedtest.net and/or google's page that offers testing via mlabs, results are similar.

basic machine info:

lspci | grep -i net: 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c) 02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821AE 802.11ac PCIe Wireless Network Adapter

iwconfig:
lo no wireless extensions.

virbr0-nic no wireless extensions.

virbr0 no wireless extensions.

enp1s0 no wireless extensions.

wlp2s0 IEEE 802.11 ESSID:"moose&squirrel-5g"
Mode:Managed Frequency:5.805 GHz Access Point: A0:04:60:8A:B1:1A
Bit Rate=200 Mb/s Tx-Power=30 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off Power Management:off Link Quality=61/70 Signal level=-49 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:1693 Missed beacon:0

uname -a:
Linux tower 4.12.13-300.fc26.x8664 #1 SMP Thu Sep 14 16:00:38 UTC 2017 x8664 x8664 x8664 GNU/Linux

Now I read a bunch about slow wifi in this Q&A support forum & searching the net. Nothing I've read about has helped, and much of it is 2-3 years old, or more.

I prepared a USB thumb drive with live Ubuntu and, surprise, wifi performed as expected! But I just can't nail down what is different between my Fedora system and Ubuntu....

Help.

2017-08-26 17:10:10 -0500 commented question file share fail during large transfer

finally got around to trying setting "net.ipv4.tcpsack=0" as mentioned in one of the linked articles. Didn't help with machine to machine transfers, they still failed as before. But it did help with machine to cloud drive transfers, (Using WD MyCloud device. It still failed, but not until 70-80 gigabytes were transferred, Before setting "net.ipv4.tcpsack=0" failure would occur when only a few gigabytes were transfered. I was able to break my payload into 20-30 gB chunks, transfer each, job done,

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2017-08-16 19:18:14 -0500 commented question Firefox & audio clip play on Amazon, All Music...etc

TaDa! Thank you ozeszty, problem solved.

Adding a profile did not solve the problem, but confirmed FF was not root cause. The root cause was an incomplete Gstreamer installation. I followed the steps in the article you linked, rebooted my system and all is well.

Note to others with a similar problem. After installing Gstreamer per the linked instructions, I still could not play audio clips. I needed to reboot, and when I did all was well.

2017-08-16 11:37:02 -0500 asked a question Firefox & audio clip play on Amazon, All Music...etc

Perhaps this best ask on a Mozillia forum, not sure.

When I navigate to sites like Amazon, All Music & click to hear any audio clip...no bueno. The little page widget thingy will become active but the clip is not played. I've tried a few MP3 plugins for FF, didn't help. Config here is FF 55.0.1, on Fedora 26. What do I need to do to have FF play these audio clips?

I do have a work around, using Gnome browser works just fine! Audio clips play on various sites I've tried.

2017-08-15 18:33:21 -0500 asked a question file share fail during large transfer

So I set up Gnome to share files between my 2 computers (settings > sharing > File Sharing on). When I try to copy large amounts of data from one device to another, the process fails. Watching network traffic in System Monitor I see the transfer rate suddenly drop to 0, and never restart. Ideas? Is this system just not rigorous enough for large transfers? 1000s of files, several gigabytes in size?

2017-08-04 05:40:07 -0500 commented answer F26 Cinnamon + switch user = Black Screen of Death BlkSOD

Yeah things are never what they seem, esp with Linux :-) I'm all good for now, got a solution that works & we'll see what happens....Thanks again for your help.

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2017-08-03 06:31:44 -0500 commented answer F26 Cinnamon + switch user = Black Screen of Death BlkSOD

Finally got back to this for more testing. Alt-Ctrl F3, F5, F6, bring up a "console" terminal (not GUI terminal). F4 & F7 clear active windows in the GUI, but leave behind the Desktop bacground & Desktop icons. Alt-Ctrl-F2 brings back the GUI environment or the lock screen, depending on when you press Alt-Ctrl-F3.....etc. or attempt to switch users.

Alt-Ctrl-F1 brings up the login screen.

I should probably file a bug report for this issue...

Thanks again for your help.

2017-08-03 06:30:59 -0500 answered a question F26 Cinnamon + switch user = Black Screen of Death BlkSOD

Finally got back to this for more testing. Alt-Ctrl F3, F5, F6, bring up a "console" terminal (not GUI terminal). F4 & F7 clear active windows in the GUI, but leave behind the Desktop bacground & Desktop icons. Alt-Ctrl-F2 brings back the GUI environment or the lock screen, depending on when you press Alt-Ctrl-F3.....etc. or attempt to switch users.

Alt-Ctrl-F1 brings up the login screen.

I should probably file a bug report for this issue...

Thanks again for your help.

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2017-07-31 16:44:05 -0500 commented answer F26 Cinnamon + switch user = Black Screen of Death BlkSOD

Tada! That worked. In all cases where I thought ther computer was locked: switching users from desktop environment & from lock screen, pressing Alt-Ctrl-F2 brought the UI alive. Not sure it was a terminal, I was brought to an active lockscreen that allowed me to enter my password & continue on....

2017-07-29 15:52:27 -0500 answered a question BT keyboard/mouse not recognized by live 25 image...

Final effort: Wired Keyboard & Mouse ($20 at Best Buy), just could not find a way for Fedora to reliably detect Apple BT keyboad & mouse.

2017-07-28 02:55:49 -0500 received badge  Student (source)
2017-07-27 18:38:37 -0500 asked a question F26 Cinnamon + switch user = Black Screen of Death BlkSOD

When trying to switch users, while using Cinnamon, the system freezes. The screen more often than not goes black. The only recovery is power cycling. This problem will happen trying to switch users from a users desktop environment, or the password prompt lock screen.

I switched the users on the affected machine to Gnome Desktop, every thing works just fine. BlkSOD only occurs with Cinnamon.

Searching the internet I see this is a recurring problem on several releases & distros. But I have yet to find a "smoking gun" that solves my problem.

Machine/Software Config: System: Host: variable Kernel: 4.11.11-300.fc26.x8664 x8664 (64 bit gcc: 7.1.1) Desktop: Cinnamon 3.4.4 dm: gdm,lightdm Distro: Fedora release 26 (Twenty Six)

Machine: Device: laptop System: HP product: HP ENVY x360 Convertible 15m-bq0xx v: Type1ProductConfigId Mobo: HP model: 8311 v: 34.22 UEFI: Insyde v: F.02 date: 05/04/2017 Chassis: type: 10

CPU: Quad core AMD FX-9800P RADEON R7 12 COMPUTE CORES 4C+8G (-MCP-) cache: 4096 KB flags: (lm nx sse sse2 sse3 sse41 sse42 sse4a ssse3 svm) bmips: 21560 clock speeds: min/max: 1400/2700 MHz 1: 1800 MHz 2: 1800 MHz 3: 1400 MHz 4: 1800 MHz

Graphics: Card: Advanced Micro Devices [AMD/ATI] Carrizo bus-ID: 00:01.0 chip-ID: 1002:9874 Display Server: x11 (Fedora X.org 119.3) driver: N/A Resolution: 1920x1080@59.98hz OpenGL: renderer: Gallium 0.4 on AMD CARRIZO (DRM 3.10.0 / 4.11.11-300.fc26.x86_64, LLVM 4.0.0) version: 4.5 Mesa 17.1.5 (compat-v: 3.0) Direct Render: Yes

Help getting this resolved will be much appreciated, thanks for reading...


Rod in Ft Collins, CO

2017-07-13 17:36:39 -0500 answered a question BT keyboard/mouse not recognized by live 25 image...

No solution yet, but closer. I tried the fedora 26 live media on my iMac. When I got to the prompt to run live or install...I had keyboard control and selected "run". But still no mouse. :-( Ideas?

2017-07-10 14:03:18 -0500 asked a question BT keyboard/mouse not recognized by live 25 image...

Right after restart my computer I can use the keyboard to select the live media on my Flash Drive. I then get to a screen that asks me to select: install or running from the Flash Drive. At this point I have no keyboard or mouse control. I 'm running a "Retina 4K, 21.5-inch, Late 2015, iMac". Bluetooth mouse & keyboard.