Ubuntu 18.04 is too slow on my Asus r558ur

Question

Ubuntu 18.04 is too slow on my Asus r558ur with 8GB RAM, 8GB swap area, 2GB Nvidia GeForce 930mx. All the graphics elements seem to appear in a sliding motion with some lag and even dragging windows seems to flicker slowly. On booting from Live USB everything works fine though. Installation is done in Legacy BIOS.

Output forlspci -k | grep -EA3 'VGA|3D|DISPLAY' command:

00:02.0 VGA compatible controller: Intel Corporation Skylake GT2 [HD Graphics 520] (rev 07)
    Subsystem: ASUSTeK Computer Inc. Skylake GT2 [HD Graphics 520]
    Kernel modules: i915
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 08)
--
01:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 930MX] (rev a2)
    Subsystem: ASUSTeK Computer Inc. GM108M [GeForce 930MX]
    Kernel modules: nvidiafb, nouveau
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)

Content of /etc/default/grub:

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX="nomodeset"

I changed tried switching to nvidia driver from nouveau display driver but then boot gets stuck at gnome display manager starting.. — Akk, Mar 01 '19 at 18:11
Also I uninstalled nd reinstalled nvidia components nd switched to the latest one. — Akk, Mar 01 '19 at 18:12
Please [edit] your question and add output of `lspci -k | grep -EA3 'VGA|3D|Display'` terminal command. — Pilot6, Mar 01 '19 at 18:13
CSM is not needed, but Secure Boot should be disabled to be able to load the drivers. — Pilot6, Mar 01 '19 at 18:14
OK. Didn't you use something like `nomodeset`? Neither of modules are loaded. Please add output of `/etc/default/grub`. — Pilot6, Mar 01 '19 at 18:27
yes, i did use **nomodeset** and output have been added. thanks — Akk, Mar 01 '19 at 18:30
thanks aIot ,I am a beginner. can u tell me which wud be the best driver to use nvidia or nouveau?? — Akk, Mar 01 '19 at 18:36

score 2 · Accepted Answer · answered Mar 01 '19 at 18:31

2

Change in /etc/default/grub

GRUB_CMDLINE_LINUX="nomodeset"

to

GRUB_CMDLINE_LINUX=""

and run

sudo update-grub

You disabled loading any kernel drivers for your graphics.

answered Mar 01 '19 at 18:31

Pilot6

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Ubuntu 18.04 is too slow on my Asus r558ur

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