Two linux laptops, huge connection speed difference

Questions about networking.
In the Original Post please also include the output of inxi -FNzxx
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palimmo
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Two linux laptops, huge connection speed difference

Postby palimmo » 11 Jan 2016 04:18

Hi.
I have a Packard Bell laptop with SolydK64 and my girlfriend has a HP laptop with LM17.3 KDE.

We are in the same apartment, sharing the same WIFI connection (no cable access available).
But she has noticed that her system in internet performs a lot slower compared to mine.

I have therefore performed a quick check with speedtest.net (being sure, before starting the check, no other devices were connected) and she reported a download speed of about 4-5Mbits per second (confirmed with both Firefox and Chromium).
I have repeated the same with my laptop: the download speed is about 40Mbits per second! :o

Therefore I think there is something wrong with her laptop.

What should I check in order to understand where is the problem and possibly fix it?

Here her configuration:

Code: Select all

~ >  inxi -FNzxx
System:    Host: lara-hp Kernel: 3.13.0-24-generic x86_64 (64 bit gcc: 4.8.2)
           Desktop: KDE Plasma 4.14.2 (Qt 4.8.6) dm: mdm Distro: Linux Mint 17.3 Rosa
Machine:   System: Hewlett-Packard product: HP Pavilion dv6700 Notebook PC v: Rev 1 Chassis: Quanta type: 10
           Mobo: Quanta model: 30D2 v: 79.29 Bios: Hewlett-Packard v: F.52 date: 03/24/2008
CPU:       Dual core Intel Core2 Duo T8100 (-MCP-) cache: 3072 KB
           flags: (lm nx sse sse2 sse3 sse4_1 ssse3 vmx) bmips: 8380
           clock speeds: min/max: 800/2101 MHz 1: 1600 MHz 2: 800 MHz
Graphics:  Card: NVIDIA G86M [GeForce 8400M GS] bus-ID: 01:00.0 chip-ID: 10de:0427
           Display Server: X.Org 1.15.1 driver: nvidia Resolution: 1280x800@60.0hz
           GLX Renderer: GeForce 8400M GS/PCIe/SSE2 GLX Version: 3.3.0 NVIDIA 340.96 Direct Rendering: Yes
Audio:     Card Intel 82801H (ICH8 Family) HD Audio Controller
           driver: snd_hda_intel bus-ID: 00:1b.0 chip-ID: 8086:284b
           Sound: Advanced Linux Sound Architecture v: k3.13.0-24-generic
Network:   Card-1: Broadcom BCM4312 802.11b/g LP-PHY driver: wl bus-ID: 02:00.0 chip-ID: 14e4:4315
           IF: wlan0 state: up mac: <filter>
           Card-2: Realtek RTL8101E/RTL8102E PCI Express Fast Ethernet controller
           driver: r8169 v: 2.3LK-NAPI port: c000 bus-ID: 06:00.0 chip-ID: 10ec:8136
           IF: eth0 state: down mac: <filter>
Drives:    HDD Total Size: 250.1GB (48.2% used)
           ID-1: /dev/sda model: Hitachi_HTS54252 size: 250.1GB serial: 080324BB0F00WDD0TNDC
Partition: ID-1: / size: 13G used: 10G (83%) fs: ext4 dev: /dev/sda3
           ID-2: swap-1 size: 3.14GB used: 0.00GB (0%) fs: swap dev: /dev/sda5
RAID:      System: supported: N/A
           No RAID devices: /proc/mdstat, md_mod kernel module present
           Unused Devices: none
Sensors:   System Temperatures: cpu: 49.0C mobo: N/A gpu: 0.0:58C
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 171 Uptime: 29 min Memory: 1072.1/3952.3MB
           Init: Upstart v: 1.12.1 runlevel: 2 default: 2 Gcc sys: 4.8.4
           Client: Shell (bash 4.3.111 running in konsole) inxi: 2.2.28 
Here mine:

Code: Select all

~ $ inxi -FNzxx
System:    Host: alessio-laptop Kernel: 4.1.0-0.bpo.1-amd64 x86_64 (64 bit gcc: 4.9.2) 
           Desktop: KDE 4.14.2 (Qt 4.8.6) dm: lightdm Distro: SolydXK 8 solydxk 
Machine:   System: Packard Bell product: EasyNote TJ65 v: 0100 Chassis: type: 10
           Mobo: Packard Bell model: SJV50MV v: Rev Bios: Phoenix v: V1.28 date: 10/06/2009
CPU:       Dual core Pentium T4300 (-MCP-) cache: 1024 KB
           flags: (lm nx sse sse2 sse3 ssse3) bmips: 8379 
           Clock Speeds: 1: 1600 MHz 2: 1600 MHz
Graphics:  Card: NVIDIA G98M [GeForce G 105M] bus-ID: 01:00.0 chip-ID: 10de:06ec
           Display Server: X.Org 1.16.4 driver: nvidia Resolution: 1366x768@59.97hz
           GLX Renderer: GeForce G 105M/PCIe/SSE2
           GLX Version: 3.3.0 NVIDIA 340.96 Direct Rendering: Yes
Audio:     Card Intel 82801I (ICH9 Family) HD Audio Controller 
           driver: snd_hda_intel bus-ID: 00:1b.0 chip-ID: 8086:293e 
           Sound: Advanced Linux Sound Architecture v: k4.1.0-0.bpo.1-amd64
Network:   Card-1: Qualcomm Atheros AR928X Wireless Network Adapter (PCI-Express)
           driver: ath9k bus-ID: 03:00.0 chip-ID: 168c:002a
           IF: wlan0 state: up mac: <filter>
           Card-2: Broadcom NetLink BCM5784M Gigabit Ethernet PCIe
           driver: tg3 v: 3.137 bus-ID: 02:00.0 chip-ID: 14e4:1698
           IF: eth1 state: down mac: <filter>
Drives:    HDD Total Size: 320.1GB (56.2% used)
           ID-1: /dev/sda model: WDC_WD3200BEVT size: 320.1GB serial: WD-WX70E99ED623
Partition: ID-1: / size: 12G used: 9.2G (87%) fs: ext4 dev: /dev/sda5 
           ID-2: swap-1 size: 4.25GB used: 0.00GB (0%) fs: swap dev: /dev/sda7 
Sensors:   System Temperatures: cpu: 58.0C mobo: 58.0C gpu: 0.0:59C 
           Fan Speeds (in rpm): cpu: N/A 
Info:      Processes: 164 Uptime: 3:30 Memory: 1286.7/3952.6MB 
           Init: systemd v: 215 runlevel: 5 default: 2 Gcc sys: 4.9.2 alt: 4.4/4.6/4.7/4.8 
           Client: Shell (bash 4.3.301 running in konsole) inxi: 2.1.28 
Thanks!
Proud user of SolydK!

Dai diamanti non nasce niente, dal letame nascono i fior. http://aquilone.wordpress.com/

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Zill
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Re: Two linux laptops, huge connection speed difference

Postby Zill » 11 Jan 2016 12:55

palimmo: I suggest this may be a WiFi driver problem as the machine in question is currently using a Broadcom BCM4312 wireless chip [14e4:4315] with the wl driver.

It is possible that just blacklisting other drivers may be sufficient to restore full speed using the wl driver. Alternatively, it could be worth trying a different driver, such as the B43.

Although some of the Debian documentation may be relevant, as the machine in question is running Ubuntu-based Mint, I suggest the Ubuntu document "WifiDocs/Driver/bcm43xx" will be the most useful and, in particular, the section entitled "Switching between drivers".

Caveat: I do not have this Broadcom device and so cannot give any specific information.

kurotsugi
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Re: Two linux laptops, huge connection speed difference

Postby kurotsugi » 11 Jan 2016 16:59

That...and remember that different hardware will gives different result. Some device have dual antene or some stuff to increase net speed. A quick test using a live cd would be easy to see if it's a hardware issue or not.

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palimmo
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Re: Two linux laptops, huge connection speed difference

Postby palimmo » 11 Jan 2016 20:10

i'm trying on her laptop with a solydK EE live image.
The speed test gives the same results, even if another driver for the wifi card is in use as well as a newer kernel.

Code: Select all

~ $ inxi -FNzxx
System:    Host: solydxk Kernel: 4.3.0-1-amd64 x86_64 (64 bit gcc: 5.3.1)
           Desktop: KDE Plasma 5.4.3 (Qt 5.5.1) dm: lightdm Distro: SolydXK 9 solydxk
Machine:   System: Hewlett-Packard product: HP Pavilion dv6700 Notebook PC v: Rev 1
           Mobo: Quanta model: 30D2 v: 79.29
           Bios: Hewlett-Packard v: F.52 date: 03/24/2008
           Chassis: Quanta type: 10
CPU:       Dual core Intel Core2 Duo T8100 (-MCP-) cache: 3072 KB
           flags: (lm nx sse sse2 sse3 sse4_1 ssse3 vmx) bmips: 8379
           clock speeds: min/max: 800/2101 MHz 1: 1200 MHz 2: 1200 MHz
Graphics:  Card: NVIDIA G86M [GeForce 8400M GS] bus-ID: 01:00.0 chip-ID: 10de:0427
           Display Server: X.Org 1.17.3 drivers: nouveau (unloaded: fbdev,vesa)
           Resolution: 1280x800@59.98hz
           GLX Renderer: Gallium 0.4 on NV86
           GLX Version: 3.0 Mesa 11.0.8 Direct Rendering: Yes
Audio:     Card Intel 82801H (ICH8 Family) HD Audio Controller
           driver: snd_hda_intel bus-ID: 00:1b.0 chip-ID: 8086:284b
           Sound: Advanced Linux Sound Architecture v: k4.3.0-1-amd64
Network:   Card-1: Broadcom BCM4312 802.11b/g LP-PHY
           driver: b43-pci-bridge bus-ID: 02:00.0 chip-ID: 14e4:4315
           IF: wlan0 state: up mac: <filter>
           Card-2: Realtek RTL8101E/RTL8102E PCI Express Fast Ethernet controller
           driver: r8169 v: 2.3LK-NAPI port: c000 bus-ID: 06:00.0 chip-ID: 10ec:8136
           IF: enp6s0 state: down mac: <filter>
Drives:    HDD Total Size: NA (-)
           ID-1: /dev/sda model: Hitachi_HTS54252 size: 250.1GB serial: 080324BB0F00WDD0TNDC temp: 38C
           ID-2: USB /dev/sdb model: USB_DISK size: 4.2GB serial: DISK-0:0 temp: 0C
Partition: ID-1: / size: 2.0G used: 93M (5%) fs: overlay dev: N/A
Sensors:   System Temperatures: cpu: 52.0C mobo: N/A gpu: 65.0
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 159 Uptime: 20 min Memory: 649.5/3955.2MB
           Init: systemd v: 228 runlevel: 5 default: 2 Gcc sys: 5.3.1 alt: 4.8/4.9
           Client: Shell (bash 4.3.421 running in konsole) inxi: 2.2.28
I've tried with Windows Vista (installed in dual boot). Same results...

Mh.... I'll try to find a cable at work and try with the wired connection.
Btw, I cannot believe that this wiki card performs so badly now.... Linux has been running on this laptop for many years and i have never noticed it..? :?
Or something that could be related to this modem/router?
Proud user of SolydK!

Dai diamanti non nasce niente, dal letame nascono i fior. http://aquilone.wordpress.com/

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xendistar
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Re: Two linux laptops, huge connection speed difference

Postby xendistar » 11 Jan 2016 22:15

Might worth looking at a USB wifi dongle if being hooked up to a network cable is going to be to inconvenience

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Ghstryder
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Re: Two linux laptops, huge connection speed difference

Postby Ghstryder » 12 Jan 2016 01:58

The wireless card is easily replaced in a Pavilion DV6700. If nothing else, I would remove the cover and make sure both antenna wires are in place. The wireless card is beneath the memory module cover. It is held in place with 2 screws.

There is often a sticker with the "HP Spares" Part Number on the card. Cards can be purchased very inexpensively on eBay. My last b/g card was $3.50 US, and that included shipping.

kurotsugi
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Re: Two linux laptops, huge connection speed difference

Postby kurotsugi » 12 Jan 2016 04:27

AFAIK the card is small and can be easily swapped. If you could buy better wifi card you can put it into the laptop.

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palimmo
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Re: Two linux laptops, huge connection speed difference

Postby palimmo » 12 Jan 2016 19:36

I have tried with a cable. As expected, there is a huge difference.
Wifi: 4-6 Mbits/s
Wired: 90Mbits/s

In case I'd like to change it, which replacement card (linux compatible, supported by motherboard and HP's whitelisted) would you suggest?
(apparently is really easy! https://www.youtube.com/watch?v=n-IiET1qxns )
Thanks!

Moreover: I've always used this laptop in EU but only now, in the US, I've noticed this huge difference.
Could this be a reason (e.g. different wifi "rules") ? :?
Proud user of SolydK!

Dai diamanti non nasce niente, dal letame nascono i fior. http://aquilone.wordpress.com/

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Ghstryder
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Re: Two linux laptops, huge connection speed difference

Postby Ghstryder » 12 Jan 2016 19:50

Edit - I should have said it is my belief that the wireless cards are not really generic, not made an absolute statement that they are not. I tried to put a Wireless N card removed from a DV7 into my Pavilion DV9000 - it didn't see it. I then tried a couple of Dell cards I had lying around with the same result. Unless you can find something recommending a specific card, I'd stick with what is in there. I don't want to imply that there is one and only one card that will work, but it isn't like sliding a PCI card into a desktop machine. You might take a peek at the HP forums, I'm betting you won't be the first person to try.

kurotsugi
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Re: Two linux laptops, huge connection speed difference

Postby kurotsugi » 12 Jan 2016 20:17

We know almost nothing about the hardware spec. Since you have another card which perform quite nicely perhaps you can start with that one. There's strict relation between motherboard and wifi card so as long as the port is compatible it should works.

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palimmo
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Re: Two linux laptops, huge connection speed difference

Postby palimmo » 23 Feb 2016 17:24

Always worse..
Download rate (updates): 15.6kB/s
That's ridiculous!
Proud user of SolydK!

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rokytnji
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Re: Two linux laptops, huge connection speed difference

Postby rokytnji » 24 Feb 2016 14:46

Always worse..
Download rate (updates): 15.6kB/s
That's ridiculous!
which is why I use wget. Pause the download in browser and then restart download. It will get better speed sometimes.

By the way. You are comparing Wireless G and Wireless N Computer gear. Hers is a G. Yours is a N.

rokytnji
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Re: Two linux laptops, huge connection speed difference

Postby rokytnji » 24 Feb 2016 14:54

In case you want to buy a replacement card for her laptop.

http://www.amazon.com/Intel-Wireless-N- ... B0099F32MK
Compatiblity:

•To suit any of the following for HP/Compaq Laptops
<snip>
•Pavilion dv6700 Series Presario V6800 Series
Your girl friends laptop is listed on the laptop compatibility list by that seller.
Intel wireless cards are good Linux supported wireless cards.

Edit: bear in mind. When changing cards. Wireless interface will change from like wlan0 to wlan1 in my experience swapping out wifi hardware.,

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Zill
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Re: Two linux laptops, huge connection speed difference

Postby Zill » 24 Feb 2016 14:58

rokytnji wrote:By the way. You are comparing Wireless G and Wireless N Computer gear. Hers is a G. Yours is a N.
Well spotted! :-)

"G" versus "N" is not really a fair comparison.

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palimmo
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Re: Two linux laptops, huge connection speed difference

Postby palimmo » 24 Feb 2016 18:20

Is that card from Amazon white listed?

Moreover: where do you see that my laptop use the N protocol (while I notice my girlfriend's is b/g)?
Thanks
Proud user of SolydK!

Dai diamanti non nasce niente, dal letame nascono i fior. http://aquilone.wordpress.com/

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Zill
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Re: Two linux laptops, huge connection speed difference

Postby Zill » 24 Feb 2016 19:46

palimmo wrote:Moreover: where do you see that my laptop use the N protocol?
The specification for the EasyNote TJ65 advises:
Wireless Protocol 802.11b/g/n
Wired Protocol Gigabit Ethernet
The Debian Wiki for the 168c:002a AR928X driver advises:
Atheros 802.11n PCI/PCI-E devices (ath9k)

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palimmo
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Re: Two linux laptops, huge connection speed difference

Postby palimmo » 24 Feb 2016 20:18

Thanks Zill.

Using an external wifi usb card could be a good workaround to the HP white list?
Would it be "accepted" anyway?
Proud user of SolydK!

Dai diamanti non nasce niente, dal letame nascono i fior. http://aquilone.wordpress.com/

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Zill
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Re: Two linux laptops, huge connection speed difference

Postby Zill » 24 Feb 2016 21:35

I use a "Netgear N150 Wireless USB Adapter WNA1100-100ENS" with my SolydX system and this works out-of-the-box with no configuration required. Prices seem to vary but I paid around €10 in 2013.

This adapter appears with a lsusb ID of "0846:9030" and uses AR9271 firmware in the "firmware-atheros" driver package.

kurotsugi
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Re: Two linux laptops, huge connection speed difference

Postby kurotsugi » 25 Feb 2016 16:56

the usb stuff will be accepted since it's connected via usb port. the wifi card, on other hand, are slotted into the mainboard and secured with some nuts. any intel and atheros chip is good but you might want to away from broadcomm an any propietary vendor.


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