Kubuntu 16 on EFI is slowing down

[Guest]

Hi!
After struggled with instalation on EFI boot (6 times), I installed it instead Win 10 to my new Acer F5-573-56GH.
Now, some time after starting the machine, the system slows down very rapidly - the mouse is slow and whole system freezes. Also on start it's very slow - black screen on boot (5s) and especially then after login loading desktop (10sec)

After using preinstalled Win 10 I was quite shocked, that my favourite system is slower than that Win 10 thing... And I still don't believe in Win

My NB:
4x Core I5 6267U
7,6GB (8GB) DDR4 memory
256GB SSD, 7,3GB SWAP

Kubuntu 16.04 64bit
KDE Plasma 5.8.4
4.4.0-54-generic kernel

I was googling and found nothing, what helped this behavior. Could anyone help me here, please?

My logs from KSystemLog (searched for "fail");
System:

29.12.16 18:15 notbook systemd-udevd[380] Process '/lib/udev/hdparm' failed with exit code 5.
29.12.16 18:15 notbook bluetoothd[906] Failed to obtain handles for "Service Changed" characteristic
29.12.16 18:15 notbook thermald[865] sysfs read failed constraint_0_max_power_uw
29.12.16 18:15 notbook thermald[865] sysfs read failed max_brightness
29.12.16 18:15 notbook bluetoothd[906] Sap driver initialization failed.
29.12.16 18:15 notbook thermald[865] sysfs write failed trip_point_0_temp
29.12.16 18:15 notbook systemd[1] snapd.service: Main process exited, code=exited, status=1/FAILURE
29.12.16 18:15 notbook systemd[1] snapd.service: Unit entered failed state.
29.12.16 18:15 notbook systemd[1] snapd.service: Failed with result 'exit-code'.
29.12.16 18:15 notbook systemd[1] snapd.service: Main process exited, code=exited, status=1/FAILURE
29.12.16 18:15 notbook systemd[1] snapd.service: Unit entered failed state.
29.12.16 18:15 notbook systemd[1] snapd.service: Failed with result 'exit-code'.
29.12.16 18:15 notbook NetworkManager[899] nm_device_get_device_type: assertion 'NM_IS_DEVICE (self)' failed
29.12.16 18:15 notbook NetworkManager[899] <warn> [1483031721.8019] failed to enumerate oFono devices: GDBus.Errorrg.freedesktop.DBus.Error.ServiceUnknown: The name org.ofono was not provided by any .service files
29.12.16 18:15 notbook systemd[1] snapd.service: Main process exited, code=exited, status=1/FAILURE
29.12.16 18:15 notbook systemd[1] snapd.service: Unit entered failed state.
29.12.16 18:15 notbook systemd[1] snapd.service: Failed with result 'exit-code'.
29.12.16 18:15 notbook systemd[1] snapd.service: Main process exited, code=exited, status=1/FAILURE
29.12.16 18:15 notbook systemd[1] snapd.service: Unit entered failed state.
29.12.16 18:15 notbook systemd[1] snapd.service: Failed with result 'exit-code'.
29.12.16 18:15 notbook systemd[1] snapd.service: Main process exited, code=exited, status=1/FAILURE
29.12.16 18:15 notbook systemd[1] snapd.service: Unit entered failed state.
29.12.16 18:15 notbook systemd[1] snapd.service: Failed with result 'exit-code'.
29.12.16 18:15 notbook systemd[1] Failed to start Snappy daemon.
29.12.16 18:15 notbook systemd[1] snapd.socket: Unit entered failed state.
29.12.16 18:15 notbook wpa_supplicant[2572] dbus: wpa_dbus_get_object_properties: failed to get object properties: (none) none
29.12.16 18:15 notbook wpa_supplicant[2572] dbus: Failed to construct signal
29.12.16 18:15 notbook apache2[2848] AH00557: apache2: apr_sockaddr_info_get() failed for notbook
29.12.16 18:15 notbook pulseaudio[2766] [pulseaudio] backend-ofono.c: Failed to register as a handsfree audio agent with ofono: org.freedesktop.DBus.Error.ServiceUnknown: The name org.ofono was not provided by any .service files

kernel:

29.12.16 18:15 platform MSFT0101 0: failed to claim resource 1
29.12.16 18:15 acpi MSFT0101 0: platform device creation failed: -16
29.12.16 18:15 acer_wmi Enabling Launch Manager failed: 0xe4 - 0x0
29.12.16 18:15 ath10k_pci 0000 2:00.0: Direct firmware load for ath10k/cal-pci-0000:02:00.0.bin failed with error -2

authentication:

28.12.16 16:30 notbook sudo pam_unix(sudo:auth): authentication failure; logname=sjiamnocna uid=1000 euid=0 tty=/dev/pts/2 ruser=sjiamnocna rhost= user=sjiamnocna
29.12.16 12:42 notbook polkitd(authority=local) Operator of unix-session:2 FAILED to authenticate to gain authorization for action org.freedesktop.packagekit.package-remove for system-bus-name::1.83 [/usr/bin/plasma-discover] (owned by unix-user:sjiamnocna)
29.12.16 12:42 notbook PackageKit uid 1000 failed to obtain auth
29.12.16 12:42 notbook polkitd(authority=local) Operator of unix-session:2 FAILED to authenticate to gain authorization for action org.freedesktop.packagekit.package-remove for system-bus-name::1.83 [/usr/bin/plasma-discover] (owned by unix-user:sjiamnocna)
29.12.16 12:42 notbook PackageKit uid 1000 failed to obtain auth
29.12.16 12:44 notbook login[2633] pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/tty1 ruser= rhost=
29.12.16 12:44 notbook login[2633] FAILED LOGIN (1) on '/dev/tty1' FOR 'UNKNOWN', Authentication failure
29.12.16 18:30 notbook sudo pam_unix(sudo:auth): authentication failure; logname=sjiamnocna uid=1000 euid=0 tty=/dev/pts/0 ruser=sjiamnocna rhost= user=sjiamnocna

X.org:

Information [ 4.135] (EE) /dev/dri/card0: failed to set DRM interface version 1.4: Permission denied
Information [ 4.165] xf86EnableIOPorts: failed to set IOPL for I/O (Operation not permitted)
Information [ 4.327] (EE) /dev/dri/card0: failed to set DRM interface version 1.4: Permission denied

[oshunluvr]

I had a similar issue because of the nvidia driver. Try booting with "nomodeset" option.

But you are getting a lot of authentication errors. That seems odd to me.

[Guest]

Well, it didn't work. So setting nomodeset didn't helped the "slowing down" issue, but seems reduced amount of kernel messages;

29.12.16 21:59 CPU 3 PID: 0 Comm: swapper/3 Not tainted 4.4.0-57-generic #78-Ubuntu
29.12.16 21:59 [<ffffffff810de097>] note_interrupt+0x247/0x290

Authentication errors have disappeared. Seems like somebody misspelled his password

But x.org shown something interesting (think synaptics is something with mouse?);

Error BUG: triggered 'if (priv->num_active_touches == 0)'
Error BUG: ../../src/synaptics.c:2966 in UpdateTouchState()
Error Backtrace:
Error 0: /usr/lib/xorg/Xorg (xorg_backtrace+0x4e) [0x564ce5c67ade]
Error 1: /usr/lib/xorg/modules/input/synaptics_drv.so (0x7f73d2fa0000+0x5b9c) [0x7f73d2fa5b9c]
Error 2: /usr/lib/xorg/modules/input/synaptics_drv.so (0x7f73d2fa0000+0x7682) [0x7f73d2fa7682]
Error 3: /usr/lib/xorg/Xorg (0x564ce5ab5000+0x94538) [0x564ce5b49538]
Error 4: /usr/lib/xorg/Xorg (0x564ce5ab5000+0xb9922) [0x564ce5b6e922]
Error 5: /lib/x86_64-linux-gnu/libc.so.6 (0x7f73e3739000+0x354b0) [0x7f73e376e4b0]
Error 6: /lib/x86_64-linux-gnu/libc.so.6 (__select+0x33) [0x7f73e38359e3]
Error 7: /usr/lib/xorg/Xorg (WaitForSomething+0x1d7) [0x564ce5c64807]
Error 8: /usr/lib/xorg/Xorg (0x564ce5ab5000+0x53b8e) [0x564ce5b08b8e]
Error 9: /usr/lib/xorg/Xorg (0x564ce5ab5000+0x57dd3) [0x564ce5b0cdd3]
Error 10: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0) [0x7f73e3759830]
Error 11: /usr/lib/xorg/Xorg (_start+0x29) [0x564ce5af7049]

System:

29.12.16 23:35 notbook systemd-udevd[409] Process '/lib/udev/hdparm' failed with exit code 5.
29.12.16 23:35 notbook bluetoothd[967] Failed to obtain handles for "Service Changed" characteristic
29.12.16 23:35 notbook bluetoothd[967] Sap driver initialization failed.
29.12.16 23:35 notbook kernel [ 3.211330] snd_hda_intel 0000:00:1f.3: failed to add i915_bpo component master (-19)
29.12.16 23:35 notbook kernel [ 3.408636] acer_wmi: Enabling Launch Manager failed: 0xe4 - 0x0
29.12.16 23:35 notbook kernel [ 3.540247] ath10k_pci 0000:02:00.0: Direct firmware load for ath10k/cal-pci-0000:02:00.0.bin failed with error -2
29.12.16 23:35 notbook thermald[1004] sysfs read failed constraint_0_max_power_uw
29.12.16 23:35 notbook thermald[1004] sysfs write failed trip_point_0_temp
29.12.16 23:35 notbook systemd[1] snapd.service: Main process exited, code=exited, status=1/FAILURE
29.12.16 23:35 notbook systemd[1] snapd.service: Unit entered failed state.
29.12.16 23:35 notbook systemd[1] snapd.service: Failed with result 'exit-code'.
29.12.16 23:35 notbook NetworkManager[998] nm_device_get_device_type: assertion 'NM_IS_DEVICE (self)' failed
29.12.16 23:35 notbook NetworkManager[998] <warn> [1483050939.7420] failed to enumerate oFono devices: GDBus.Errorrg.freedesktop.DBus.Error.ServiceUnknown: The name org.ofono was not provided by any .service files
29.12.16 23:35 notbook systemd[1] snapd.service: Main process exited, code=exited, status=1/FAILURE
29.12.16 23:35 notbook systemd[1] snapd.service: Unit entered failed state.
29.12.16 23:35 notbook systemd[1] snapd.service: Failed with result 'exit-code'.
29.12.16 23:35 notbook systemd[1] snapd.service: Main process exited, code=exited, status=1/FAILURE
29.12.16 23:35 notbook systemd[1] snapd.service: Unit entered failed state.
29.12.16 23:35 notbook systemd[1] snapd.service: Failed with result 'exit-code'.
29.12.16 23:35 notbook systemd[1] snapd.service: Main process exited, code=exited, status=1/FAILURE
29.12.16 23:35 notbook systemd[1] snapd.service: Unit entered failed state.
29.12.16 23:35 notbook systemd[1] snapd.service: Failed with result 'exit-code'.
29.12.16 23:35 notbook systemd[1] snapd.service: Main process exited, code=exited, status=1/FAILURE
29.12.16 23:35 notbook systemd[1] snapd.service: Unit entered failed state.
29.12.16 23:35 notbook systemd[1] snapd.service: Failed with result 'exit-code'.
29.12.16 23:35 notbook systemd[1] Failed to start Snappy daemon.
29.12.16 23:35 notbook systemd[1] snapd.socket: Unit entered failed state.
29.12.16 23:35 notbook wpa_supplicant[2544] dbus: wpa_dbus_get_object_properties: failed to get object properties: (none) none
29.12.16 23:35 notbook wpa_supplicant[2544] dbus: Failed to construct signal
29.12.16 23:35 notbook apache2[2564] AH00557: apache2: apr_sockaddr_info_get() failed for notbook
29.12.16 23:35 notbook pulseaudio[2981] [pulseaudio] backend-ofono.c: Failed to register as a handsfree audio agent with ofono: org.freedesktop.DBus.Error.ServiceUnknown: The name org.ofono was not provided by any .service files

And DBus

Notifier for subscription 65 (dbus://) went away, retrying!

____________________________________
Edit:
I found some question about mouse lag on superuser:
http://superuser.com/questions/52872...inux-mint-mate
and did these commands, hoping it will help. Unfortunately (or fortunately - still don't know ) I erased all my default /etc/modprobe.d/local.conf. System seems to work without. I'll see, if the lags stops to appear.

sudo -i
echo N > /sys/module/drm_kms_helper/parameters/poll
echo "options drm_kms_helper poll=N" >> /etc/modprobe.d/local.conf