Another useful command is:
$ iw phy0 info | less
Which will tell you a bunch of information about what channels are
tunable and the modes (and combinations) the the radio supports.
E.g.:
Wiphy phy0
wiphy index: 0
max # scan SSIDs: 20
max scan IEs length: 422 bytes
max # sched scan SSIDs: 20
max # match sets: 11
Retry short limit: 7
Retry long limit: 4
Coverage class: 0 (up to 0m)
Device supports RSN-IBSS.
Device supports AP-side u-APSD.
Supported Ciphers:
* WEP40 (00-0f-ac:1)
* WEP104 (00-0f-ac:5)
* TKIP (00-0f-ac:2)
* CCMP-128 (00-0f-ac:4)
* CMAC (00-0f-ac:6)
Available Antennas: TX 0x3 RX 0x3
Configured Antennas: TX 0x3 RX 0x3
Supported interface modes:
* IBSS
* managed
* AP
* AP/VLAN
* monitor
* P2P-client
* P2P-GO
* P2P-device
Band 1:
Capabilities: 0x11ef
RX LDPC
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 4 usec (0x05)
HT Max RX data rate: 300 Mbps
HT TX/RX MCS rate indexes supported: 0-15
Bitrates (non-HT):
* 1.0 Mbps
* 2.0 Mbps (short preamble supported)
* 5.5 Mbps (short preamble supported)
* 11.0 Mbps (short preamble supported)
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
Frequencies:
* 2412 MHz [1] (22.0 dBm)
* 2417 MHz [2] (22.0 dBm)
* 2422 MHz [3] (22.0 dBm)
* 2427 MHz [4] (22.0 dBm)
* 2432 MHz [5] (22.0 dBm)
* 2437 MHz [6] (22.0 dBm)
* 2442 MHz [7] (22.0 dBm)
* 2447 MHz [8] (22.0 dBm)
* 2452 MHz [9] (22.0 dBm)
* 2457 MHz [10] (22.0 dBm)
* 2462 MHz [11] (22.0 dBm)
* 2467 MHz [12] (22.0 dBm)
* 2472 MHz [13] (22.0 dBm)
* 2484 MHz [14] (disabled)
Band 2:
Capabilities: 0x11ef
RX LDPC
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 4 usec (0x05)
HT Max RX data rate: 300 Mbps
HT TX/RX MCS rate indexes supported: 0-15
VHT Capabilities (0x039071b0):
Max MPDU length: 3895
Supported Channel Width: neither 160 nor 80+80
RX LDPC
short GI (80 MHz)
TX STBC
SU Beamformee
MU Beamformee
VHT RX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT RX highest supported: 0 Mbps
VHT TX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT TX highest supported: 0 Mbps
Bitrates (non-HT):
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
Frequencies:
* 5180 MHz [36] (22.0 dBm)
* 5200 MHz [40] (22.0 dBm)
* 5220 MHz [44] (22.0 dBm)
* 5240 MHz [48] (22.0 dBm)
* 5260 MHz [52] (22.0 dBm) (no IR, radar detection)
* 5280 MHz [56] (22.0 dBm) (no IR, radar detection)
* 5300 MHz [60] (22.0 dBm) (no IR, radar detection)
* 5320 MHz [64] (22.0 dBm) (no IR, radar detection)
* 5340 MHz [68] (disabled)
* 5360 MHz [72] (disabled)
* 5380 MHz [76] (disabled)
* 5400 MHz [80] (disabled)
* 5420 MHz [84] (disabled)
* 5440 MHz [88] (disabled)
* 5460 MHz [92] (disabled)
* 5480 MHz [96] (disabled)
* 5500 MHz [100] (22.0 dBm) (no IR, radar detection)
* 5520 MHz [104] (22.0 dBm) (no IR, radar detection)
* 5540 MHz [108] (22.0 dBm) (no IR, radar detection)
* 5560 MHz [112] (22.0 dBm) (no IR, radar detection)
* 5580 MHz [116] (22.0 dBm) (no IR, radar detection)
* 5600 MHz [120] (22.0 dBm) (no IR, radar detection)
* 5620 MHz [124] (22.0 dBm) (no IR, radar detection)
* 5640 MHz [128] (22.0 dBm) (no IR, radar detection)
* 5660 MHz [132] (22.0 dBm) (no IR, radar detection)
* 5680 MHz [136] (22.0 dBm) (no IR, radar detection)
* 5700 MHz [140] (22.0 dBm) (no IR, radar detection)
* 5720 MHz [144] (22.0 dBm) (no IR, radar detection)
* 5745 MHz [149] (22.0 dBm)
* 5765 MHz [153] (22.0 dBm)
* 5785 MHz [157] (22.0 dBm)
* 5805 MHz [161] (22.0 dBm)
* 5825 MHz [165] (22.0 dBm)
* 5845 MHz [169] (disabled)
* 5865 MHz [173] (disabled)
* 5885 MHz [177] (disabled)
* 5905 MHz [181] (disabled)
Supported commands:
* new_interface
* set_interface
* new_key
* start_ap
* new_station
* new_mpath
* set_mesh_config
* set_bss
* authenticate
* associate
* deauthenticate
* disassociate
* join_ibss
* join_mesh
* remain_on_channel
* set_tx_bitrate_mask
* frame
* frame_wait_cancel
* set_wiphy_netns
* set_channel
* start_sched_scan
* probe_client
* set_noack_map
* register_beacons
* start_p2p_device
* set_mcast_rate
* connect
* disconnect
* channel_switch
* set_qos_map
* add_tx_ts
* set_multicast_to_unicast
WoWLAN support:
* wake up on disconnect
* wake up on magic packet
* wake up on pattern match, up to 20 patterns of 16-128 bytes,
maximum packet offset 0 bytes
* can do GTK rekeying
* wake up on GTK rekey failure
* wake up on EAP identity request
* wake up on 4-way handshake
* wake up on rfkill release
* wake up on network detection, up to 11 match sets
software interface modes (can always be added):
* AP/VLAN
* monitor
valid interface combinations:
* #{ managed } <= 1, #{ AP, P2P-client, P2P-GO } <=
1, #{ P2P-device } <= 1,
total <= 3, #channels <= 2
HT Capability overrides:
* MCS: ff ff ff ff ff ff ff ff ff ff
* maximum A-MSDU length
* supported channel width
* short GI for 40 MHz
* max A-MPDU length exponent
* min MPDU start spacing
Device supports TX status socket option.
Device supports HT-IBSS.
Device supports SAE with AUTHENTICATE command
Device supports low priority scan.
Device supports scan flush.
Device supports per-vif TX power setting
P2P GO supports CT window setting
P2P GO supports opportunistic powersave setting
Driver supports full state transitions for AP/GO clients
Driver supports a userspace MPM
Driver/device bandwidth changes during BSS lifetime (AP/GO mode)
Device adds DS IE to probe requests
Device can update TPC Report IE
Device supports static SMPS
Device supports dynamic SMPS
Device supports WMM-AC admission (TSPECs)
Device supports configuring vdev MAC-addr on create.
Device supports randomizing MAC-addr in scans.
Device supports randomizing MAC-addr in sched scans.
Device supports randomizing MAC-addr in net-detect scans.
max # scan plans: 2
max scan plan interval: 65535
max scan plan iterations: 254
Supported TX frame types:
* IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80
0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70
0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80
0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70
0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* mesh point: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70
0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70
0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70
0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-device: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70
0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
Supported RX frame types:
* IBSS: 0x40 0xb0 0xc0 0xd0
* managed: 0x40 0xb0 0xd0
* AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* mesh point: 0xb0 0xc0 0xd0
* P2P-client: 0x40 0xd0
* P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* P2P-device: 0x40 0xd0
Supported extended features:
* [ VHT_IBSS ]: VHT-IBSS
* [ RRM ]: RRM
* [ MU_MIMO_AIR_SNIFFER ]: MU-MIMO sniffer
* [ SCAN_START_TIME ]: scan start timestamp
* [ BSS_PARENT_TSF ]: BSS last beacon/probe TSF
* [ FILS_STA ]: STA FILS (Fast Initial Link Setup)
* [ FILS_MAX_CHANNEL_TIME ]: FILS max channel
attribute override with dwell time
* [ ACCEPT_BCAST_PROBE_RESP ]: accepts broadcast probe response
* [ OCE_PROBE_REQ_HIGH_TX_RATE ]: probe request TX at
high rate (at least 5.5Mbps)
* [ OCE_PROBE_REQ_DEFERRAL_SUPPRESSION ]: probe
request tx deferral and suppression
* [ CONTROL_PORT_OVER_NL80211 ]: control port over nl80211
* [ TXQS ]: FQ-CoDel-enabled intermediate TXQs
* [ EXT_KEY_ID ]: Extended Key ID support
* [ CONTROL_PORT_NO_PREAUTH ]: disable pre-auth over
nl80211 control port support
* [ DEL_IBSS_STA ]: deletion of IBSS station support
* [ SCAN_FREQ_KHZ ]: scan on kHz frequency support
* [ CONTROL_PORT_OVER_NL80211_TX_STATUS ]: tx status
for nl80211 control port support
On Mon, Sep 23, 2024 at 7:02 PM Russell Senior
<[email protected]> wrote:
>
> It says 802.11a (amongst others "802.11a/b/g/n") which implies it also
> can tune 5GHz channels.
>
> On Mon, Sep 23, 2024 at 7:00 PM Tomas Kuchta
> <[email protected]> wrote:
> >
> > I noticed that the wifi card is 2.4GHz - if I have not overlooked the 5GHz
> > part, it may not even have 5GHZ antena to plug into the new wifi 6e (ax)
> > card. That could spoil the replacement idea.
> >
> > I suggest to open the laptop and look for the 5GHz antena. It may be there
> > unplugged or taped to some safe spot.
> >
> > Tomas
> >
> > On Mon, Sep 23, 2024, 20:08 Russell Senior <[email protected]>
> > wrote:
> >
> > > Broadcom wifi is famously bad on Linux because of hostility from
> > > Broadcom to open source software. Broadcom is the NVidia of the
> > > networking world. In theory, you might be able to replace the wifi
> > > radio with an Intel wifi radio. Although, sometimes the radios are
> > > locked by BIOS checks. Also, it seems to be limited to 802.11n (which
> > > is a couple generations old), which could also explain the speed
> > > differences.
> > >
> > > Maybe something like this would work:
> > > https://www.amazon.com/dp/B09CDFV2CL/
> > >
> > > On Mon, Sep 23, 2024 at 4:48 PM David Fleck <[email protected]> wrote:
> > > >
> > > > Output of command:
> > > >
> > > > 25:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries
> > > BCM43224 802.11a/b/g/n [14e4:4353] (rev 01)
> > > > Subsystem: Hewlett-Packard Company WMIB-275N Half-size Mini PCIe
> > > Card [103c:1509]
> > > > Flags: bus master, fast devsel, latency 0, IRQ 19
> > > > Memory at d4100000 (64-bit, non-prefetchable) [size=16K]
> > > > Capabilities: [40] Power Management version 3
> > > > Capabilities: [58] Vendor Specific Information: Len=78 <?>
> > > > Capabilities: [48] MSI: Enable- Count=1/1 Maskable- 64bit+
> > > > Capabilities: [d0] Express Endpoint, MSI 00
> > > > Capabilities: [100] Advanced Error Reporting
> > > > Capabilities: [13c] Virtual Channel
> > > > Capabilities: [160] Device Serial Number 00-00-7a-ff-ff-2b-20-10
> > > > Capabilities: [16c] Power Budgeting <?>
> > > > Kernel driver in use: bcma-pci-bridge
> > > > Kernel modules: bcma
> > > >
> > > >
> > > >
> > > > --
> > > > - David Fleck
> > > >
> > > >
> > > > On Monday, September 23rd, 2024 at 2:27 PM, Russell Senior <
> > > [email protected]> wrote:
> > > >
> > > > > e.g.:
> > > > >
> > > > > $ lspci | grep Network | awk '{ print $1}' | while read d ; do lspci
> > > > > -s $d -v -nn ; done
> > > > > aa:00.0 Network controller [0280]: Intel Corporation Wi-Fi 6
> > > > > AX210/AX211/AX411 160MHz [8086:2725] (rev 1a)
> > > > > Subsystem: Intel Corporation Wi-Fi 6 AX210 160MHz [8086:0024]
> > > > > Flags: bus master, fast devsel, latency 0, IRQ 16, IOMMU group 17
> > > > > Memory at 7a200000 (64-bit, non-prefetchable) [size=16K]
> > > > > Capabilities: <access denied>
> > > > >
> > > > > Kernel driver in use: iwlwifi
> > > > > Kernel modules: iwlwifi
> > > > >
> > > > > On Mon, Sep 23, 2024 at 9:24 AM Russell Senior
> > > > > [email protected] wrote:
> > > > >
> > > > > > On Mon, Sep 23, 2024 at 5:51 AM David Fleck [email protected]
> > > wrote:
> > > > > >
> > > > > > > So far, my laptop quest has lead me to an HP EliteBook 8560p cast
> > > off by my employer. So, yay, free!
> > > > > > >
> > > > > > > Installed OpenSuse Leap 15.6, everything seems to just work,
> > > except: battery is dead (easily fixed) and the wifi is molasses-in-January
> > > slow, as in 2 orders of magnitude slower than other laptops in the house.
> > > > > >
> > > > > > A good place to start is to figure out what the wifi interface is.
> > > > > > What does lspci call the wifi interface?
> > > > > >
> > > > > > --
> > > > > > Russell Senior
> > > > > > [email protected]
> > >
