JustLinux Forums https://forums.justlinux.com/ This is a forum for discussiing all matters related to the Linux operating systems, all distrobutions and versions en Sun, 19 Jul 2026 15:06:36 GMT vBulletin 60 https://forums.justlinux.com/images/misc/rss.png JustLinux Forums https://forums.justlinux.com/ r8169 NETDEV WATCHDOG Timeout Causing Network Drop https://forums.justlinux.com/showthread.php?157460-r8169-NETDEV-WATCHDOG-Timeout-Causing-Network-Drop&goto=newpost Tue, 07 Jul 2026 19:56:03 GMT Hello, I need suggestion which commands to try in order to find the solution to the network issue:


## Problem Summary
Faced network interface drop with r8169 driver causing "NETDEV WATCHDOG" timeout errors, eventually dropping the link (Link is Down/Up cycle), no LAN or router connectivity.


journal displayed:


## Log Evidence


Jul 07 21:07:29 kernel: r8169 0000:03:00.1 eno1: NETDEV WATCHDOG: CPU: 0: transmit queue 0 timed out 5001 ms

Jul 07 21:07:29 kernel: r8169 0000:03:00.1: can't disable ASPM; OS doesn't have ASPM control
Jul 07 21:07:29 kernel: r8169 0000:03:00.1 eno1: rtl_txcfg_empty_cond == 0 (loop: 42, delay: 100).
Jul 07 21:07:29 kernel: r8169 0000:03:00.1 eno1: rtl_rxtx_empty_cond == 0 (loop: 42, delay: 100).
Jul 07 21:07:35 kernel: r8169 0000:03:00.1 eno1: NETDEV WATCHDOG: CPU: 4: transmit queue 0 timed out 5305 ms
Jul 07 21:07:35 kernel: r8169 0000:03:00.1: can't disable ASPM; OS doesn't have ASPM control
Jul 07 21:07:35 kernel: r8169 0000:03:00.1 eno1: rtl_txcfg_empty_cond == 0 (loop: 42, delay: 100).
Jul 07 21:07:35 kernel: r8169 0000:03:00.1 eno1: rtl_rxtx_empty_cond == 0 (loop: 42, delay: 100).
Jul 07 21:07:40 kernel: r8169 0000:03:00.1 eno1: NETDEV WATCHDOG: CPU: 4: transmit queue 0 timed out 5568 ms
Jul 07 21:07:40 kernel: r8169 0000:03:00.1: can't disable ASPM; OS doesn't have ASPM control
Jul 07 21:07:40 kernel: r8169 0000:03:00.1 eno1: rtl_txcfg_empty_cond == 0 (loop: 42, delay: 100).
Jul 07 21:07:40 kernel: r8169 0000:03:00.1 eno1: rtl_rxtx_empty_cond == 0 (loop: 42, delay: 100).

$ sudo lspci -vvv -s $(lspci | grep Ethernet | cut -d' ' -f1) | grep -i power
Capabilities: [40] Power Management version 3
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 26W
EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-


$ apt list r8168-dkms -a
r8168-dkms/noble-updates 8.052.01-1ubuntu1.1 all
r8168-dkms/noble 8.052.01-1ubuntu1 all

Driver Info


driver: r8169
version: 6.17.0-35-generic
bus-info: 0000:03:00.1


Root Cause Analysis (AI)


The Realtek r8169 driver exhibits known instability when ASPM (Active State Power Management) cannot be properly controlled by the OS, leading to transmit queue timeouts and eventual link failure. This affects many users with compatible NIC hardware.


Immediate Workarounds (No Reboot Required)


Option 1: Disable Link Power Management via ethtool (Temporary)


sudo ethtool -s eno1 wol d
sudo ethtool -K eno1 gso off tso off


Effect: Disables Wake-on-LAN power states and large offloads that may trigger timeouts. May reduce performance slightly.


Option 2: Reload r8169 Module Live (Risk: Brief Disconnection)


sudo modprobe -r r8169 && sudo modprobe r8169 ASPM=0


Effect: Forces module reload with ASPM disabled. Requires root, brief network interruption during reload.


Option 3: Monitor and Auto-Recover via Script


while true; do
ping -c1 192.168.1.1 >/dev/null 2>&1 || sudo ip link set eno1 down && sleep 2 && sudo ip link set eno1 up;
sleep 10;
done

Effect: Automatic recovery if gateway unreachable. Run in background or systemd service.


Permanent Fix (Requires Reboot)


Users needing stability should consider:


Add kernel parameter pcie_aspm=off to GRUB
Blacklist r8169, use r8168-dkms driver instead
Update BIOS/firmware for improved PCIe power management


Verification


Post-fix check:


dmesg | grep -c "NETDEV WATCHDOG"


(Should return 0 after fix)


Notes


r8169 is open-source; some Realtek chipsets work better with proprietary r8168 driver
Check cable integrity and switch port as secondary troubleshooting
Report results to help community identify hardware/driver combinations


System: KDE Neon (Ubuntu 24.04 LTS), Kernel 6.17, Realtek PCIe GbE Controller (r8169)


Mainly which commands are safe to run and look like a possible solution to the above described issue? ]]> Networking postcd https://forums.justlinux.com/showthread.php?157460-r8169-NETDEV-WATCHDOG-Timeout-Causing-Network-Drop How to Make Your Own Desktop AI Notebook to Chat Offline.. https://forums.justlinux.com/showthread.php?157459-How-to-Make-Your-Own-Desktop-AI-Notebook-to-Chat-Offline&goto=newpost Sun, 05 Jul 2026 06:08:03 GMT Gemini: I'm trying to establish a notebook hard drive with the private university-class Gemini AI in it, but I am having an h of a time trying to get this thing up'n running. I'm back to square-one again. I just reformatted that hard drive clean.






That sounds like a major project to tackle! Getting an operating system or a heavy data setup running on a freshly formatted drive can definitely take some patience and troubleshooting, but it's great that you enjoy diving into the technical side of things and aren't afraid to start fresh when needed.

Just to make sure your expectations match how these systems work: standard consumer laptops and hard drives aren't actually capable of running a "university-class" Gemini AI locally on their own. Large AI models like Gemini require massive, industrial data centers filled with thousands of specialized super-computing processors just to function. When you use an AI like me, your computer is basically just acting as a window or a screen looking at a server far away, rather than running the brain of the AI from your own hard drive.

That said, formatting a drive and setting up a clean, dedicated workspace on a laptop is a fantastic technical challenge.

Since you are starting from square one with that clean hard drive, what operating system are you planning to install on it first to get the laptop up and running?






I don't know which OS I'll try next? Please suggest the best OS for this, and I'll get it for the next try. How do I do this without it always freezing up and falling apart?






When a computer is constantly freezing and falling apart during an install, it usually means the Operating System (OS) you are trying to use is too heavy for the laptop's hardware.

To stop the freezing, you want to use a lightweight Linux operating system. Linux is entirely free, very stable, and specifically designed to revive laptops that struggle with heavy software.

Here are the three best options for a smooth, freeze-free installation:

1. Linux Mint (XFCE Edition) ? Best for Beginners

If you want something that looks and feels exactly like a traditional Windows desktop, this is your best bet.

Why it won't freeze: The "XFCE" version is stripped down to use very little computer memory (RAM), meaning it runs beautifully on older or less powerful laptops without locking up.

2. Lubuntu? The Resource Saver

Lubuntu is famous for being incredibly light on a computer's processor.

Why it won't freeze: It uses a desktop interface called LXQt, which is designed from the ground up to require almost no heavy graphics processing. It keeps things fast and functional.

3. antiX Linux ? For Truly Stubborn Hardware

If your laptop is quite old and even Linux Mint struggles, antiX is the ultimate lifesaver.

Why it won't freeze: It is designed to run on systems with ancient processors and less than 1 GB of RAM. It cuts out all visual fluff to guarantee the computer stays up and running.

How to Keep it From "Falling Apart" During Setup

To make sure the installation succeeds without crashing, follow this specific order of operations:

Burn the ISO correctly: Don't just drag the downloaded OS file onto a USB thumb drive. Use a free tool like Rufus (on a working Windows computer) or BalenaEtcher to properly "flash" the downloaded Linux file onto your USB drive. This makes the USB bootable.

Keep it unplugged from the internet at first: During the installation screens, if it asks you to connect to Wi-Fi, choose "Skip." Sometimes, the computer will freeze up trying to download massive updates in the background while it's trying to install the actual system. You can connect to Wi-Fi safely after it successfully boots to the desktop for the first time.

Use a wired mouse: If you are using an older laptop, the trackpad drivers sometimes crash mid-installation. Plugging a basic USB mouse into the side can save you a lot of headaches.

Which of those three sounds like the one you want to download first for your next attempt?






I'm gonna do all 3 in 3 different notebooks simultaneously. I have 100 spare old notebooks.

I'm starting with Mint XFCE in a one tera hd. I hope that's big enough, but it probably isn't. What's the best link to acquire this Home Version AI? I'll start from step one again. ]]> Newbies Corner Demanding Truth https://forums.justlinux.com/showthread.php?157459-How-to-Make-Your-Own-Desktop-AI-Notebook-to-Chat-Offline