When reading the network/interfaces/wlan0/wifi/signal and network/interfaces/wlan0/wifi/noise sensors they report values that are much lower than expected. KSysGuard reports signal values of -325 dBm while /proc/net/wireless reports -69 dBm. I believe this comes from line 250 - 251 in kde/workspace/ksysguard/ksysguardd/Linux/netdev.c where both of the values are reduced by 256. I'm guessing this is correct for some cards, but not others. As evidenced by my far too low values. Reproducible: Always Steps to Reproduce: 1. Open KSysGuard 2. Find a signal or noise sensor for a wireless network card 3. Drag onto a sensor slot Actual Results: The values are reported at around -300 dBm for signal strength and -512 dBm for noise level. Expected Results: The correct values of around -60 dBm for signal strength and -256 dBm for noise are shown. # lspci -nnv ... 02:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036] (rev 01) Subsystem: Lite-On Communications Inc QCA9565 / AR9565 Wireless Network Adapter [11ad:0642] Flags: bus master, fast devsel, latency 0, IRQ 19 Memory at b0500000 (64-bit, non-prefetchable) [size=512K] Expansion ROM at b0580000 [disabled] [size=64K] Capabilities: [40] Power Management version 2 Capabilities: [50] MSI: Enable- Count=1/4 Maskable+ 64bit+ Capabilities: [70] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [140] Virtual Channel Capabilities: [160] Device Serial Number 00-00-00-00-00-00-00-00 Kernel driver in use: ath9k Kernel modules: ath9k
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This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!