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#301 2017-04-02 06:32:50

moesi
Member
Registered: 2014-02-27
Posts: 48

Re: Arch on New XPS 15(Late 2015)

i forgot to install bbswitch. After restart and again turning off the gpu - output of powertop:

The battery reports a discharge rate of 15.1 W
The estimated remaining time is 1 hours, 37 minutes

Summary: 988.1 wakeups/second,  9.7 GPU ops/seconds, 0.0 VFS ops/sec and 11.2% CPU use

                Usage       Events/s    Category       Description
              2.3 ms/s     532.0        Interrupt      [17] idma64.1
             61.4 ms/s     165.7        Process        /usr/lib/firefox/firefox
            100.0%                      Device         Audio codec hwC0D0: Realtek
              1.1 ms/s      67.8        Process        [irq/51-DLL06E4:]
              1.8 ms/s      29.1        Process        xfwm4
             18.0 ms/s      21.2        Process        /usr/lib/xorg-server/Xorg :0 -seat seat0 -auth /run/lightdm/root/:0 -nolisten tcp vt7 -novtswit
            439.4 us/s      29.2        Timer          tick_sched_timer
            102.7 us/s      18.8        Process        [i915/signal:0]
              2.9 ms/s      13.0        Process        /usr/lib/xfce4/panel/wrapper-1.0 /usr/lib/xfce4/panel/plugins/libcpugraph.so 17 12582949 cpugra
             88.5 us/s      16.5        Process        [rcu_preempt]
            318.6 us/s      11.3        Process        /usr/lib/at-spi2-core/at-spi2-registryd --use-gnome-session
             76.7 us/s      11.5        Interrupt      [6] tasklet(softirq)
              8.6 ms/s       4.6        Process        /usr/lib/xfce4/panel/wrapper-2.0 /usr/lib/xfce4/panel/plugins/libwavelan.so 16 12582946 wavelan
             17.2 us/s       8.0        Timer          intel_uncore_fw_release_timer
              2.1 ms/s       4.7        Process        xfce4-terminal
            491.5 us/s       5.9        Process        nm-applet
              8.8 us/s       6.4        Interrupt      [51] DLL06E4:01
            331.0 us/s       5.8        Process        xfdesktop
            589.5 us/s       5.3        Process        xfce4-panel
             87.2 us/s       5.2        Process        [irq/135-iwlwifi]
            266.2 us/s       5.0        Process        /usr/bin/kwalletd5
            145.9 us/s       3.8        Interrupt      [136] i915
              0.7 ms/s       2.7        Process        /usr/bin/NetworkManager --no-daemon
              7.5 us/s       2.9        kWork          intel_atomic_helper_free_state
              1.1 ms/s       1.9        Interrupt      [7] sched(softirq)
              0.8 ms/s       1.5        Process        leafpad
            199.9 us/s       1.9        Process        xfsettingsd
            531.8 us/s       1.2        Process        /usr/lib/xfce4/panel/wrapper-2.0 /usr/lib/xfce4/panel/plugins/libbattery.so 22 12582947 battery
              3.4 ms/s      0.00        Interrupt      [17] i2c_designware.1
            116.5 us/s       1.2        Process        xfce4-power-manager
             11.3 us/s       1.0        kWork          gen6_pm_rps_work

            ...

cat /proc/acpi/bbswitch:

0000:01:00.0 OFF

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#302 2017-04-02 08:16:35

OdinEidolon
Member
From: Belluno - Italy
Registered: 2011-01-31
Posts: 498

Re: Arch on New XPS 15(Late 2015)

moesi wrote:

i forgot to install bbswitch. After restart and again turning off the gpu - output of powertop:

The battery reports a discharge rate of 15.1 W
The estimated remaining time is 1 hours, 37 minutes

Summary: 988.1 wakeups/second,  9.7 GPU ops/seconds, 0.0 VFS ops/sec and 11.2% CPU use

                Usage       Events/s    Category       Description
              2.3 ms/s     532.0        Interrupt      [17] idma64.1
             61.4 ms/s     165.7        Process        /usr/lib/firefox/firefox
            100.0%                      Device         Audio codec hwC0D0: Realtek
              1.1 ms/s      67.8        Process        [irq/51-DLL06E4:]
              1.8 ms/s      29.1        Process        xfwm4
             18.0 ms/s      21.2        Process        /usr/lib/xorg-server/Xorg :0 -seat seat0 -auth /run/lightdm/root/:0 -nolisten tcp vt7 -novtswit
            439.4 us/s      29.2        Timer          tick_sched_timer
            102.7 us/s      18.8        Process        [i915/signal:0]
              2.9 ms/s      13.0        Process        /usr/lib/xfce4/panel/wrapper-1.0 /usr/lib/xfce4/panel/plugins/libcpugraph.so 17 12582949 cpugra
             88.5 us/s      16.5        Process        [rcu_preempt]
            318.6 us/s      11.3        Process        /usr/lib/at-spi2-core/at-spi2-registryd --use-gnome-session
             76.7 us/s      11.5        Interrupt      [6] tasklet(softirq)
              8.6 ms/s       4.6        Process        /usr/lib/xfce4/panel/wrapper-2.0 /usr/lib/xfce4/panel/plugins/libwavelan.so 16 12582946 wavelan
             17.2 us/s       8.0        Timer          intel_uncore_fw_release_timer
              2.1 ms/s       4.7        Process        xfce4-terminal
            491.5 us/s       5.9        Process        nm-applet
              8.8 us/s       6.4        Interrupt      [51] DLL06E4:01
            331.0 us/s       5.8        Process        xfdesktop
            589.5 us/s       5.3        Process        xfce4-panel
             87.2 us/s       5.2        Process        [irq/135-iwlwifi]
            266.2 us/s       5.0        Process        /usr/bin/kwalletd5
            145.9 us/s       3.8        Interrupt      [136] i915
              0.7 ms/s       2.7        Process        /usr/bin/NetworkManager --no-daemon
              7.5 us/s       2.9        kWork          intel_atomic_helper_free_state
              1.1 ms/s       1.9        Interrupt      [7] sched(softirq)
              0.8 ms/s       1.5        Process        leafpad
            199.9 us/s       1.9        Process        xfsettingsd
            531.8 us/s       1.2        Process        /usr/lib/xfce4/panel/wrapper-2.0 /usr/lib/xfce4/panel/plugins/libbattery.so 22 12582947 battery
              3.4 ms/s      0.00        Interrupt      [17] i2c_designware.1
            116.5 us/s       1.2        Process        xfce4-power-manager
             11.3 us/s       1.0        kWork          gen6_pm_rps_work

            ...

cat /proc/acpi/bbswitch:

0000:01:00.0 OFF

Do a longer test, e.g. with:

# powerstat -d 0 -f -g -c

Hardware: 2016 Dell XPS15 - matte FullHD - i5-6300HQ - 32GB DDR4 - Nvidia GTX960M - Samsung 840EVO 250GB SSD - 56Wh
Software: Plasma 5 - rEFInd - linux-ck - preload - prelink - verynice - psd - bumblebee

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#303 2017-04-02 09:51:05

moesi
Member
Registered: 2014-02-27
Posts: 48

Re: Arch on New XPS 15(Late 2015)

ok. following just with wifi without any application running: (desktop environment is xfce4)

Running for 480.0 seconds (48 samples at 10.0 second intervals).
Power measurements will start in 0 seconds time.

  Time    User  Nice   Sys  Idle    IO  Run Ctxt/s  IRQ/s Fork Exec Exit  Watts   CPU Freq  GPU W
08:25:33   0.2   0.0   0.1  99.7   0.0    1    175    115    2    0    2  14.49   0.83 GHz   0.09
08:25:43   0.1   0.0   0.0  99.8   0.0    1     81     75    0    0    0  13.55   1.04 GHz   0.08
08:25:53   0.2   0.0   0.0  99.8   0.0    1    112     78    0    0    0  13.72   0.89 GHz   0.09
08:26:03   0.3   0.0   0.1  99.6   0.0    1    404    127    0    0    0  13.56   0.85 GHz   0.17
08:26:13   0.1   0.0   0.0  99.8   0.0    1     70     66    0    0    0  13.56   0.97 GHz   0.08
08:26:23   0.3   0.0   0.0  99.7   0.0    1     81     76    1    0    0  14.31   1.14 GHz   0.09
08:26:33   0.2   0.0   0.0  99.8   0.0    1     91     81    3    0    2  13.59   0.85 GHz   0.08
08:26:43   0.2   0.0   0.0  99.8   0.1    1     87     76    0    0    2  13.75   0.99 GHz   0.09
08:26:53   0.2   0.0   0.0  99.8   0.0    1    115     79    0    0    0  13.57   0.87 GHz   0.09
08:27:03   0.2   0.0   0.1  99.8   0.0    1    107     93    5    3    5  11.58   0.95 GHz   0.08
08:27:13   0.2   0.0   0.1  99.7   0.1    1     89     76    2    0    2  11.45   0.89 GHz   0.08
08:27:23   0.2   0.0   0.1  99.8   0.0    1    152     86    4    2    4  12.05   1.30 GHz   0.09
08:27:33   0.2   0.0   0.0  99.8   0.0    1    178     84    2    0    2  15.22   1.16 GHz   0.08
08:27:43   0.2   0.0   0.1  99.8   0.0    1     83     80    0    0    0  15.21   0.85 GHz   0.08
08:27:53   0.2   0.0   0.0  99.8   0.0    1     76     74    0    0    0  15.24   0.91 GHz   0.08
08:28:03   0.2   0.0   0.0  99.8   0.0    1     99     82    0    0    0  15.40   1.07 GHz   0.08
08:28:13   0.2   0.0   0.0  99.8   0.0    1     80     75    0    0    0  15.24   1.03 GHz   0.08
08:28:23   0.2   0.0   0.0  99.8   0.0    1     71     71    0    0    0  15.19   1.00 GHz   0.08
08:28:33   0.2   0.0   0.1  99.7   0.0    1    116     96    7    3    7  13.32   0.86 GHz   0.10
08:28:43   0.2   0.0   0.0  99.8   0.0    1     83     77    0    0    0  13.12   0.95 GHz   0.08
08:28:53   0.2   0.0   0.1  99.7   0.0    1    124     78    0    0    0  12.86   0.85 GHz   0.08
08:29:03   0.2   0.0   0.0  99.8   0.0    1     86     80    0    0    5  12.88   1.08 GHz   0.10
08:29:13   0.1   0.0   0.1  99.8   0.0    1     78     73    0    0    0  12.94   0.92 GHz   0.08
08:29:23   0.1   0.0   0.1  99.8   0.0    1     73     70    0    0    0  12.91   0.88 GHz   0.08
08:29:33   0.2   0.0   0.0  99.8   0.0    1     78     70    2    0    2  12.89   1.08 GHz   0.08
08:29:43   0.2   0.0   0.0  99.8   0.0    1     82     76    0    0    0  12.93   0.97 GHz   0.09
08:29:53   0.2   0.0   0.0  99.8   0.0    1     72     76    0    0    0  12.94   0.87 GHz   0.08
08:30:03   0.2   0.0   0.0  99.8   0.0    1    112     86    1    0    2  12.93   1.06 GHz   0.08
08:30:13   0.2   0.0   0.0  99.8   0.0    1     83     77    0    0    2  12.96   0.89 GHz   0.08
08:30:23   0.2   0.0   0.0  99.8   0.0    1     75     70    0    0    0  12.93   0.98 GHz   0.08
08:30:33   0.2   0.0   0.0  99.8   0.0    1     77     74    2    0    3  12.95   0.95 GHz   0.08
08:30:43   0.2   0.0   0.0  99.8   0.0    1     76     70    0    0    0  12.92   0.97 GHz   0.08
08:30:53   0.2   0.0   0.1  99.8   0.0    1    116     76    0    0    0  12.94   0.88 GHz   0.07
08:31:03   0.2   0.0   0.0  99.8   0.0    1     71     69    0    0    0  12.89   1.23 GHz   0.09
08:31:13   0.2   0.0   0.0  99.8   0.0    1     78     75    0    0    0  12.93   0.88 GHz   0.09
08:31:23   0.2   0.0   0.0  99.8   0.0    1     81     73    0    0    0  12.89   0.99 GHz   0.09
08:31:33   0.2   0.0   0.0  99.8   0.0    1     93     81    3    0    2  12.96   0.89 GHz   0.09
08:31:43   0.2   0.0   0.0  99.8   0.0    1     76     71    0    0    0  12.97   0.98 GHz   0.08
08:31:53   0.2   0.0   0.0  99.8   0.0    1     70     70    0    0    1  12.95   0.92 GHz   0.09
08:32:03   0.2   0.0   0.0  99.8   0.0    1    109     87    0    0    0  12.84   0.86 GHz   0.09
08:32:13   0.2   0.0   0.0  99.8   0.0    1     79     74    0    0    1  12.99   1.01 GHz   0.08
08:32:23   0.2   0.0   0.1  99.8   0.0    1     81     78    3    0    2  12.95   0.87 GHz   0.09
08:32:33   0.2   0.0   0.1  99.8   0.0    1     91     83    2    0    2  10.99   0.89 GHz   0.08
08:32:43   0.2   0.0   0.1  99.8   0.0    1     78     73    0    0    0  11.02   1.25 GHz   0.09
08:32:53   0.2   0.0   0.0  99.7   0.0    1    112     72    0    0    0  11.03   0.85 GHz   0.09
08:33:03   0.2   0.0   0.0  99.8   0.0    1     70     67    0    0    0  10.99   0.89 GHz   0.09
08:33:13   0.2   0.0   0.0  99.8   0.0    1     69     70    0    0    0  11.01   0.89 GHz   0.09
08:33:23   0.2   0.0   0.0  99.8   0.0    1     74     70    0    0    0  11.02   0.88 GHz   0.08
-------- ----- ----- ----- ----- ----- ---- ------ ------ ---- ---- ---- ------  --------- ------
 Average   0.2   0.0   0.0  99.8   0.0  1.0   98.2   78.4  0.8  0.2  1.0  13.07   0.96 GHz   0.09
  StdDev   0.0   0.0   0.0   0.0   0.0  0.0   51.1   10.9  1.5  0.7  1.6   1.17   0.11 GHz   0.01
-------- ----- ----- ----- ----- ----- ---- ------ ------ ---- ---- ---- ------  --------- ------
 Minimum   0.1   0.0   0.0  99.6   0.0  1.0   69.2   66.1  0.0  0.0  0.0  10.99   0.83 GHz   0.07
 Maximum   0.3   0.0   0.1  99.8   0.1  1.0  404.4  127.0  7.0  3.0  7.0  15.40   1.30 GHz   0.17
-------- ----- ----- ----- ----- ----- ---- ------ ------ ---- ---- ---- ------  --------- ------
Summary:
System:  13.07 Watts on average with standard deviation 1.17  
GPU:   0.09 Watts on average with standard deviation 0.01  

C-State    Resident      Count Latency 
C1-SKL      99.651%      43924       2
POLL         0.000%         79       0
C0           0.348%

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#304 2017-04-02 10:03:08

OdinEidolon
Member
From: Belluno - Italy
Registered: 2011-01-31
Posts: 498

Re: Arch on New XPS 15(Late 2015)

moesi wrote:

ok. following just with wifi without any application running: (desktop environment is xfce4)

Running for 480.0 seconds (48 samples at 10.0 second intervals).
Power measurements will start in 0 seconds time.

  Time    User  Nice   Sys  Idle    IO  Run Ctxt/s  IRQ/s Fork Exec Exit  Watts   CPU Freq  GPU W
08:25:33   0.2   0.0   0.1  99.7   0.0    1    175    115    2    0    2  14.49   0.83 GHz   0.09
08:25:43   0.1   0.0   0.0  99.8   0.0    1     81     75    0    0    0  13.55   1.04 GHz   0.08
08:25:53   0.2   0.0   0.0  99.8   0.0    1    112     78    0    0    0  13.72   0.89 GHz   0.09
08:26:03   0.3   0.0   0.1  99.6   0.0    1    404    127    0    0    0  13.56   0.85 GHz   0.17
08:26:13   0.1   0.0   0.0  99.8   0.0    1     70     66    0    0    0  13.56   0.97 GHz   0.08
08:26:23   0.3   0.0   0.0  99.7   0.0    1     81     76    1    0    0  14.31   1.14 GHz   0.09
08:26:33   0.2   0.0   0.0  99.8   0.0    1     91     81    3    0    2  13.59   0.85 GHz   0.08
08:26:43   0.2   0.0   0.0  99.8   0.1    1     87     76    0    0    2  13.75   0.99 GHz   0.09
08:26:53   0.2   0.0   0.0  99.8   0.0    1    115     79    0    0    0  13.57   0.87 GHz   0.09
08:27:03   0.2   0.0   0.1  99.8   0.0    1    107     93    5    3    5  11.58   0.95 GHz   0.08
08:27:13   0.2   0.0   0.1  99.7   0.1    1     89     76    2    0    2  11.45   0.89 GHz   0.08
08:27:23   0.2   0.0   0.1  99.8   0.0    1    152     86    4    2    4  12.05   1.30 GHz   0.09
08:27:33   0.2   0.0   0.0  99.8   0.0    1    178     84    2    0    2  15.22   1.16 GHz   0.08
08:27:43   0.2   0.0   0.1  99.8   0.0    1     83     80    0    0    0  15.21   0.85 GHz   0.08
08:27:53   0.2   0.0   0.0  99.8   0.0    1     76     74    0    0    0  15.24   0.91 GHz   0.08
08:28:03   0.2   0.0   0.0  99.8   0.0    1     99     82    0    0    0  15.40   1.07 GHz   0.08
08:28:13   0.2   0.0   0.0  99.8   0.0    1     80     75    0    0    0  15.24   1.03 GHz   0.08
08:28:23   0.2   0.0   0.0  99.8   0.0    1     71     71    0    0    0  15.19   1.00 GHz   0.08
08:28:33   0.2   0.0   0.1  99.7   0.0    1    116     96    7    3    7  13.32   0.86 GHz   0.10
08:28:43   0.2   0.0   0.0  99.8   0.0    1     83     77    0    0    0  13.12   0.95 GHz   0.08
08:28:53   0.2   0.0   0.1  99.7   0.0    1    124     78    0    0    0  12.86   0.85 GHz   0.08
08:29:03   0.2   0.0   0.0  99.8   0.0    1     86     80    0    0    5  12.88   1.08 GHz   0.10
08:29:13   0.1   0.0   0.1  99.8   0.0    1     78     73    0    0    0  12.94   0.92 GHz   0.08
08:29:23   0.1   0.0   0.1  99.8   0.0    1     73     70    0    0    0  12.91   0.88 GHz   0.08
08:29:33   0.2   0.0   0.0  99.8   0.0    1     78     70    2    0    2  12.89   1.08 GHz   0.08
08:29:43   0.2   0.0   0.0  99.8   0.0    1     82     76    0    0    0  12.93   0.97 GHz   0.09
08:29:53   0.2   0.0   0.0  99.8   0.0    1     72     76    0    0    0  12.94   0.87 GHz   0.08
08:30:03   0.2   0.0   0.0  99.8   0.0    1    112     86    1    0    2  12.93   1.06 GHz   0.08
08:30:13   0.2   0.0   0.0  99.8   0.0    1     83     77    0    0    2  12.96   0.89 GHz   0.08
08:30:23   0.2   0.0   0.0  99.8   0.0    1     75     70    0    0    0  12.93   0.98 GHz   0.08
08:30:33   0.2   0.0   0.0  99.8   0.0    1     77     74    2    0    3  12.95   0.95 GHz   0.08
08:30:43   0.2   0.0   0.0  99.8   0.0    1     76     70    0    0    0  12.92   0.97 GHz   0.08
08:30:53   0.2   0.0   0.1  99.8   0.0    1    116     76    0    0    0  12.94   0.88 GHz   0.07
08:31:03   0.2   0.0   0.0  99.8   0.0    1     71     69    0    0    0  12.89   1.23 GHz   0.09
08:31:13   0.2   0.0   0.0  99.8   0.0    1     78     75    0    0    0  12.93   0.88 GHz   0.09
08:31:23   0.2   0.0   0.0  99.8   0.0    1     81     73    0    0    0  12.89   0.99 GHz   0.09
08:31:33   0.2   0.0   0.0  99.8   0.0    1     93     81    3    0    2  12.96   0.89 GHz   0.09
08:31:43   0.2   0.0   0.0  99.8   0.0    1     76     71    0    0    0  12.97   0.98 GHz   0.08
08:31:53   0.2   0.0   0.0  99.8   0.0    1     70     70    0    0    1  12.95   0.92 GHz   0.09
08:32:03   0.2   0.0   0.0  99.8   0.0    1    109     87    0    0    0  12.84   0.86 GHz   0.09
08:32:13   0.2   0.0   0.0  99.8   0.0    1     79     74    0    0    1  12.99   1.01 GHz   0.08
08:32:23   0.2   0.0   0.1  99.8   0.0    1     81     78    3    0    2  12.95   0.87 GHz   0.09
08:32:33   0.2   0.0   0.1  99.8   0.0    1     91     83    2    0    2  10.99   0.89 GHz   0.08
08:32:43   0.2   0.0   0.1  99.8   0.0    1     78     73    0    0    0  11.02   1.25 GHz   0.09
08:32:53   0.2   0.0   0.0  99.7   0.0    1    112     72    0    0    0  11.03   0.85 GHz   0.09
08:33:03   0.2   0.0   0.0  99.8   0.0    1     70     67    0    0    0  10.99   0.89 GHz   0.09
08:33:13   0.2   0.0   0.0  99.8   0.0    1     69     70    0    0    0  11.01   0.89 GHz   0.09
08:33:23   0.2   0.0   0.0  99.8   0.0    1     74     70    0    0    0  11.02   0.88 GHz   0.08
-------- ----- ----- ----- ----- ----- ---- ------ ------ ---- ---- ---- ------  --------- ------
 Average   0.2   0.0   0.0  99.8   0.0  1.0   98.2   78.4  0.8  0.2  1.0  13.07   0.96 GHz   0.09
  StdDev   0.0   0.0   0.0   0.0   0.0  0.0   51.1   10.9  1.5  0.7  1.6   1.17   0.11 GHz   0.01
-------- ----- ----- ----- ----- ----- ---- ------ ------ ---- ---- ---- ------  --------- ------
 Minimum   0.1   0.0   0.0  99.6   0.0  1.0   69.2   66.1  0.0  0.0  0.0  10.99   0.83 GHz   0.07
 Maximum   0.3   0.0   0.1  99.8   0.1  1.0  404.4  127.0  7.0  3.0  7.0  15.40   1.30 GHz   0.17
-------- ----- ----- ----- ----- ----- ---- ------ ------ ---- ---- ---- ------  --------- ------
Summary:
System:  13.07 Watts on average with standard deviation 1.17  
GPU:   0.09 Watts on average with standard deviation 0.01  

C-State    Resident      Count Latency 
C1-SKL      99.651%      43924       2
POLL         0.000%         79       0
C0           0.348%

All the numbers look good... except for the power numbers! Did you try running something like TLP to lower power consumption, and see if that works? It's as easy as installing it and enabling the service, nothing else is necessary.


Hardware: 2016 Dell XPS15 - matte FullHD - i5-6300HQ - 32GB DDR4 - Nvidia GTX960M - Samsung 840EVO 250GB SSD - 56Wh
Software: Plasma 5 - rEFInd - linux-ck - preload - prelink - verynice - psd - bumblebee

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#305 2017-04-02 11:02:31

moesi
Member
Registered: 2014-02-27
Posts: 48

Re: Arch on New XPS 15(Late 2015)

Thank you OdinEidolon!

TLP did the trick... System is now at ~8.5 Watts!

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#306 2017-04-16 06:37:07

archerious
Member
Registered: 2017-04-16
Posts: 2

Re: Arch on New XPS 15(Late 2015)

My XPS 15 9550 (late 2015) as of April 13, 2017 the wireless stopped working.

Pastebin of the broadcom wifi driver errors: http://ix.io/qyE

Pastebin of latest journalctl -b: https://ptpb.pw/SB7A.log

"Direct firmware load for brcm/brcmfmac43602-pcie.txt failed with error -2"
"[   11.839067] brcmfmac: brcmf_cfg80211_add_iface: add iface p2p-dev-wlp2s0 type 10 failed: err=-16"
Among other errors.


$ uname -r
4.10.8-1-ARCH

I then downgraded the kernel to:

$ uname -r
4.10.5-1-ARCH
$ dmesg | grep brcmfmac
[   11.916065] usbcore: registered new interface driver brcmfmac
[   11.916105] brcmfmac 0000:02:00.0: enabling device (0000 -> 0002)
[   12.026586] brcmfmac 0000:02:00.0: Direct firmware load for brcm/brcmfmac43602-pcie.txt failed with error -2
[   12.528175] brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0: Nov 10 2015 06:38:10 version 7.35.177.61 (r598657) FWID 01-ea662a8c
[   12.570073] brcmfmac: brcmf_cfg80211_reg_notifier: not a ISO3166 code (0x30 0x30)
[   12.576109] brcmfmac 0000:02:00.0 wlp2s0: renamed from wlan0
[   14.449327] brcmfmac: brcmf_p2p_create_p2pdev: set p2p_disc error
[   14.449331] brcmfmac: brcmf_cfg80211_add_iface: add iface p2p-dev-wlp2s0 type 10 failed: err=-16
[   18.067891] brcmfmac: brcmf_cfg80211_escan_handler: scan not ready, bsscfgidx=0
[   18.067895] brcmfmac: brcmf_fweh_event_worker: event handler failed (69)
[   30.636714] brcmfmac: brcmf_inetaddr_changed: fail to get arp ip table err:-23

$ ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=2 ttl=58 time=34.3 ms
64 bytes from 8.8.8.8: icmp_seq=5 ttl=58 time=642 ms
^C
--- 8.8.8.8 ping statistics ---
6 packets transmitted, 2 received, 66% packet loss, time 5062ms
rtt min/avg/max/mdev = 34.368/338.260/642.152/303.892 ms
$


To no avail. I still cannot get firefox, or hexchat to load anything properly from the net.

People on #archlinux IRC told me to use a cached download (pacman -Su) to upgrade back to 4.10.8-1 (luckly I had my old X200 laying around to use weechat with big_smile).

What's odd is sometimes it'll appear that the wifi is on and connected to my AP, but then the ping is anywhere from 600ms to over 1000ms.

Websites, other things such as hexchat, and skype just won't load. Same with my LAN samba box, my XPS just can't load or ping to it reliably. SSH sessions fail etc.

Other times, like these past two days, wireless just doesn't work at all. Since there is no ethernet port, I haven't been able to use my XPS at all for work.

Any recommendations? Maybe I should replace the nic? Will it void the warranty?

Thank you for all your contributions on here OP, fingers crossed nobody else gets these issues with broadcom dell nics.


if god is real may he smite broadcom for their drivers

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#307 2017-04-16 09:12:12

OdinEidolon
Member
From: Belluno - Italy
Registered: 2011-01-31
Posts: 498

Re: Arch on New XPS 15(Late 2015)

Opening the laptop and replacing the crappy wireless card that's inside does NOT void your warranty.


Hardware: 2016 Dell XPS15 - matte FullHD - i5-6300HQ - 32GB DDR4 - Nvidia GTX960M - Samsung 840EVO 250GB SSD - 56Wh
Software: Plasma 5 - rEFInd - linux-ck - preload - prelink - verynice - psd - bumblebee

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#308 2017-04-28 20:18:34

belectron
Member
Registered: 2017-04-28
Posts: 2

Re: Arch on New XPS 15(Late 2015)

Hi archerious, did you end up replacing your wifi?  If not, did you try going back to a 4.9 kernel?  I started having intermittent issues with wifi with once I had upgraded to 4.10.  I tried a couple of different version of the 4.10 kernels before going back to 4.9.11 and everything is working good again.  Didn't know if others with this laptop with the stock wifi module were having the same issues.  I might just wait for 4.11 before giving it a go again and really troubleshooting.

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#309 2017-05-02 15:45:26

Cilph
Member
Registered: 2011-05-01
Posts: 29

Re: Arch on New XPS 15(Late 2015)

Hi. Did a fresh install of Archlinux together with KDE5 and I'm having issues with my WD15 docking station that's hooked up to two external monitors. Despite setting KDE to not suspend when docked (it even acknowledges this) my two screens disconnect once I close the laptop lid. However I don't think it's actually suspending. I also turned off USB autosuspend via TLP thinking this might help, but to no result. Tips on where I can look next?

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#310 2017-07-24 13:17:14

OdinEidolon
Member
From: Belluno - Italy
Registered: 2011-01-31
Posts: 498

Re: Arch on New XPS 15(Late 2015)

Does anyone know if AD2P bluetooth performance is better with an Intel wifi card compared with the default broadcom, under Linux at least? Using the Dell1830 wifi card with a BT headset is almost impossible on my 9550.


Hardware: 2016 Dell XPS15 - matte FullHD - i5-6300HQ - 32GB DDR4 - Nvidia GTX960M - Samsung 840EVO 250GB SSD - 56Wh
Software: Plasma 5 - rEFInd - linux-ck - preload - prelink - verynice - psd - bumblebee

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#311 2017-07-24 18:51:44

Asriel
Member
Registered: 2016-11-28
Posts: 40

Re: Arch on New XPS 15(Late 2015)

OdinEidolon wrote:

Does anyone know if AD2P bluetooth performance is better with an Intel wifi card compared with the default broadcom, under Linux at least? Using the Dell1830 wifi card with a BT headset is almost impossible on my 9550.

In my experience the best blutooth perfrmance with AD2P is with Killer 1535 card - but ufortunately for me it eats a lot of battery (probably the drivers or firmware are the cause if it). So I've switched to 8265 - now my system is 95% in PC8 at idle in comparison of 60% with Killer but bluetooth is not so good.

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#312 2017-07-24 19:03:38

OdinEidolon
Member
From: Belluno - Italy
Registered: 2011-01-31
Posts: 498

Re: Arch on New XPS 15(Late 2015)

Asriel wrote:
OdinEidolon wrote:

Does anyone know if AD2P bluetooth performance is better with an Intel wifi card compared with the default broadcom, under Linux at least? Using the Dell1830 wifi card with a BT headset is almost impossible on my 9550.

In my experience the best blutooth perfrmance with AD2P is with Killer 1535 card - but ufortunately for me it eats a lot of battery (probably the drivers or firmware are the cause if it). So I've switched to 8265 - now my system is 95% in PC8 at idle in comparison of 60% with Killer but bluetooth is not so good.

You did not get a chance to compare with the 1830, did you?
AD2P playback is smooth, without hisses, and without disconnections within a few meters, with the Intel?


Hardware: 2016 Dell XPS15 - matte FullHD - i5-6300HQ - 32GB DDR4 - Nvidia GTX960M - Samsung 840EVO 250GB SSD - 56Wh
Software: Plasma 5 - rEFInd - linux-ck - preload - prelink - verynice - psd - bumblebee

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#313 2017-07-25 06:06:25

Asriel
Member
Registered: 2016-11-28
Posts: 40

Re: Arch on New XPS 15(Late 2015)

No, I have 9350 so I had compared 1820, 8265 and Killer. Intel A2DP playback is not smooth - radio channel is poor so whenever you go few meetes away it can start skipping. No complete disconection, but it skips music. And what is driving me mad when the laptop is in backpack the body shields the bluetooth antenna from earphones and it start also skipping. The only adapter that did not had this backpack issue was killer - they have installed radio channel amplifiers there so the range of both wifi and bluetooth are better.  But the power management of that card is much worse than intel.

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#314 2017-07-25 09:05:49

OdinEidolon
Member
From: Belluno - Italy
Registered: 2011-01-31
Posts: 498

Re: Arch on New XPS 15(Late 2015)

Asriel wrote:

No, I have 9350 so I had compared 1820, 8265 and Killer. Intel A2DP playback is not smooth - radio channel is poor so whenever you go few meetes away it can start skipping. No complete disconection, but it skips music. And what is driving me mad when the laptop is in backpack the body shields the bluetooth antenna from earphones and it start also skipping. The only adapter that did not had this backpack issue was killer - they have installed radio channel amplifiers there so the range of both wifi and bluetooth are better.  But the power management of that card is much worse than intel.

Ok, thanks for the info!


Hardware: 2016 Dell XPS15 - matte FullHD - i5-6300HQ - 32GB DDR4 - Nvidia GTX960M - Samsung 840EVO 250GB SSD - 56Wh
Software: Plasma 5 - rEFInd - linux-ck - preload - prelink - verynice - psd - bumblebee

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#315 2017-07-25 19:14:12

Asriel
Member
Registered: 2016-11-28
Posts: 40

Re: Arch on New XPS 15(Late 2015)

If I would compare 1820, 8265 and killer in  bluetooth quality 1820 is the worst, intel in the middle killer the best. But I've just checked the 9550 setup - looks like there are 3 antennas inside, so 3 antenna intel might have better quality in buetooth as well.

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#316 2017-07-26 04:03:58

OdinEidolon
Member
From: Belluno - Italy
Registered: 2011-01-31
Posts: 498

Re: Arch on New XPS 15(Late 2015)

Asriel wrote:

If I would compare 1820, 8265 and killer in  bluetooth quality 1820 is the worst, intel in the middle killer the best. But I've just checked the 9550 setup - looks like there are 3 antennas inside, so 3 antenna intel might have better quality in buetooth as well.

There is no modern 3-antenna Intel card unfortunately. Only some business-centered models.


Hardware: 2016 Dell XPS15 - matte FullHD - i5-6300HQ - 32GB DDR4 - Nvidia GTX960M - Samsung 840EVO 250GB SSD - 56Wh
Software: Plasma 5 - rEFInd - linux-ck - preload - prelink - verynice - psd - bumblebee

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#317 2017-08-27 07:44:29

OdinEidolon
Member
From: Belluno - Italy
Registered: 2011-01-31
Posts: 498

Re: Arch on New XPS 15(Late 2015)

Anyone having troubles with suspend using kernel 4.12.8?
It looks like sometimes the laptop will abruptly poweroff instead of suspending, so it will boot from scratch when unsuspended.


Hardware: 2016 Dell XPS15 - matte FullHD - i5-6300HQ - 32GB DDR4 - Nvidia GTX960M - Samsung 840EVO 250GB SSD - 56Wh
Software: Plasma 5 - rEFInd - linux-ck - preload - prelink - verynice - psd - bumblebee

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#318 2017-09-13 07:14:07

Asriel
Member
Registered: 2016-11-28
Posts: 40

Re: Arch on New XPS 15(Late 2015)

Good news for those who care about battery uasge and heat - finally there is the way to undervolt skylake under linux!
Here is the link to HOWTO.
Worked fine for me on my XPS-13

https://github.com/mihic/linux-intel-un … /README.md

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#319 2017-09-13 07:19:10

OdinEidolon
Member
From: Belluno - Italy
Registered: 2011-01-31
Posts: 498

Re: Arch on New XPS 15(Late 2015)

Asriel wrote:

Good news for those who care about battery uasge and heat - finally there is the way to undervolt skylake under linux!
Here is the link to HOWTO.
Worked fine for me on my XPS-13

https://github.com/mihic/linux-intel-un … /README.md

I'd like to underline the fact that, if you use IntelXTU under Windows, the undervolt is kept under Linux too.


Hardware: 2016 Dell XPS15 - matte FullHD - i5-6300HQ - 32GB DDR4 - Nvidia GTX960M - Samsung 840EVO 250GB SSD - 56Wh
Software: Plasma 5 - rEFInd - linux-ck - preload - prelink - verynice - psd - bumblebee

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