Bug 500486

Summary:	Network speed graph y axis range changes to 0 - 2^64 after sleep
Product:	[Applications] plasma-systemmonitor	Reporter:	Mark Bolhuis <mark>
Component:	general	Assignee:	KSysGuard Developers <ksysguard-bugs>
Status:	RESOLVED WORKSFORME
Severity:	minor	CC:	ahiemstra, nate, plasma-bugs-null
Priority:	NOR
Version First Reported In:	6.3.1
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Mark Bolhuis 2025-02-20 20:58:28 UTC

SUMMARY
If the computer is put to sleep, then woken up the y axis of network speed graphs changes to the range 0 to 2^64 B/s

STEPS TO REPRODUCE
1. Create a page that contains a network speed line graph, using automatic Y-axis values.
2. Save and have the page with the graph open and visible.
3. Put the computer to sleep.
4. Wake the computer and login.

OBSERVED RESULT
The y-axis ranges from 0 - 2^64 B/s

EXPECTED RESULT
The axis should accurately reflect network speed.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.3.1
KDE Frameworks Version: 6.11.0
Qt Version: 6.8.2
Kernel Version: 6.13.3-arch1-1 (64-bit)
Graphics Platform: Wayland

Comment 1 Arjen Hiemstra 2025-03-17 17:16:26 UTC

Assuming you have the graph set to "automatic" for its data range, the range is actually calculated based upon the data points in the graph, since there is no natural "maximum" for data rates. This implies there's a data point of 2^64 B/s in the graph, which likely happens due to time deltas jumping after restoring from sleep. Are you using Network Manager for network connections?

Comment 2 Nate Graham 2025-03-19 14:13:52 UTC

Comment 3 Mark Bolhuis 2025-03-19 16:42:29 UTC

(In reply to Arjen Hiemstra from comment #1)
> Assuming you have the graph set to "automatic" for its data range, the range
> is actually calculated based upon the data points in the graph, since there
> is no natural "maximum" for data rates. This implies there's a data point of
> 2^64 B/s in the graph, which likely happens due to time deltas jumping after
> restoring from sleep. Are you using Network Manager for network connections?

Yes I am using NetworkManager, and the graph is set to automatic. 

At the time I reported this there weren't any visible data points on the graph. It stayed blank.
I have checked again and after logging back in the graph y-axis does still change to 0-2^64 but now see some data points that would cause that. So your assessment is probably correct.

Comment 4 Bug Janitor Service 2025-04-03 03:46:45 UTC

🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!

Comment 5 Bug Janitor Service 2025-04-18 03:47:04 UTC

🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.