Problem: display flickering with intel graphics 620 uhd HELP!

[nesmaba]

Hello everybody!

I have a problem with an Intel graphics 620UHD. I have an ASUS laptop 430UA. The specifications are the following:
Intel core i7 8550U
Intel graphics 620UHD

I've installed Linux Mint 18.3 Cinammon64bit, cinnamon 3.6.7 kernel 4.13.0-32
Everytime the display of laptop, 192x1080, is flickering

What can I do????? HELP!!!

[CaptainKirksChair]

First, let's get a look at your system. Open a terminal and run the following command. If you type, the letter F is a capital.

Code: Select all

inxi -Fxz

Paste the output back here between Code tags.

[nesmaba]

The output of the command is the following:

Code: Select all

-AsusZenUX430UAR ~ $ inxi -Fxz
System:    Host: nestor-AsusZenUX430UAR Kernel: 4.13.0-32-generic x86_64 (64 bit gcc: 5.4.0)
           Desktop: Cinnamon 3.6.7 (Gtk 3.18.9-1ubuntu3.3)
           Distro: Linux Mint 18.3 Sylvia
Machine:   System: ASUSTeK (portable) product: UX430UAR v: 1.0
           Mobo: ASUSTeK model: UX430UAR v: 1.0
           Bios: American Megatrends v: UX430UAR.300 date: 10/06/2017
CPU:       Quad core Intel Core i7-8550U (-HT-MCP-) cache: 8192 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 15936
           clock speeds: max: 4000 MHz 1: 2000 MHz 2: 2000 MHz 3: 2000 MHz
           4: 2000 MHz 5: 2000 MHz 6: 2000 MHz 7: 2000 MHz 8: 2000 MHz
Graphics:  Card: Intel Device 5917 bus-ID: 00:02.0
           Display Server: X.Org 1.18.4 drivers: intel (unloaded: fbdev,vesa)
           Resolution: 1920x1080@60.01hz
           GLX Renderer: Mesa DRI Intel Kabylake GT1.5
           GLX Version: 3.0 Mesa 17.2.8 Direct Rendering: Yes
Audio:     Card Intel Device 9d71 driver: snd_hda_intel bus-ID: 00:1f.3
           Sound: Advanced Linux Sound Architecture v: k4.13.0-32-generic
Network:   Card: Intel Device 24fd driver: iwlwifi bus-ID: 02:00.0
           IF: wlp2s0 state: up speed: N/A duplex: N/A mac: <filter>
Drives:    HDD Total Size: 256.1GB (11.5% used)
           ID-1: /dev/sda model: HFS256G39TND size: 256.1GB
Partition: ID-1: / size: 109G used: 20G (19%) fs: ext4 dev: /dev/sda5
           ID-2: swap-1 size: 8.88GB used: 0.00GB (0%) fs: swap dev: /dev/sda6
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 38.5C mobo: N/A
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 244 Uptime: 2:25 Memory: 3044.4/7833.9MB
           Init: systemd runlevel: 5 Gcc sys: 5.4.0
           Client: Shell (bash 4.3.481) inxi: 2.2.35

[nesmaba]

I have other monitor, AOC 2K, and with this no problem either, only I have problems with the display of the laptop and in Linux only (I've tried with Ubuntu 17 too and the same problem). With the maximum level of brightness I don't have any problem with the display.... It's too strange...

[CaptainKirksChair]

I have other monitor, AOC 2K, and with this no problem either

Is the external monitor using HDMI or something else? And have you disconnected the external monitor but the problem persists? What is the screen resolution of the external monitor? I did some google-fu and I see a max resolution of 2560 x 1440 Quad HD for the AOC 2K. Make sure the external monitor is set to the same resolution and refresh rate as the laptop's built-in monitor.

[nesmaba]

I have other monitor, AOC 2K, and with this no problem either

Is the external monitor using HDMI or something else? And have you disconnected the external monitor but the problem persists? What is the screen resolution of the external monitor? I did some google-fu and I see a max resolution of 2560 x 1440 Quad HD for the AOC 2K. Make sure the external monitor is set to the same resolution and refresh rate as the laptop's built-in monitor.

With the 2K AOC monitor, 2560 x 1440, all right. Only the laptop screen fails me, 1920x1080 FHD. I have, presumably, the right drivers for the graph. With the brightness to the maximum, the screen of the laptop does not give me problems either, and in windows either. It only gives me problems, blinks, the laptop screen with its normal resolution, 1920x1080 FHD, with the brightness when it is not at maximum and in Linux Mint 18.3 ... What can I do? HELP!

[CaptainKirksChair]

With the 2K AOC monitor, 2560 x 1440, all right. Only the laptop screen fails me, 1920x1080 FHD.

When you say "Only the laptop screen fails me" does that mean that the external monitor is NOT in use when the problem happens?

[nesmaba]

With the 2K AOC monitor, 2560 x 1440, all right. Only the laptop screen fails me, 1920x1080 FHD.

When you say "Only the laptop screen fails me" does that mean that the external monitor is NOT in use when the problem happens?

The laptop monitor always fails. When I use the two monitors and when I use only the laptop monitor, but only fails in Linux, Ubuntu and Mint, in windows all right.

[CaptainKirksChair]

The laptop monitor always fails. When I use the two monitors and when I use only the laptop monitor, but only fails in Linux, Ubuntu and Mint, in windows all right.

According to this article on AskUbuntu, there is a known bug in Xorg 1.18 and the Intel drivers. Most of the answers are about a year and a half old and speak of a different model, but sound relevant in your case. Your installed version of Xorg matches and it's possible that you are experiencing the bug. There is a report about maximized windows having the problem but non-maximized windows are okay. You can try that too. Why it works with an external monitor is not known to me unless a different driver is somehow in use. I can't say the fix in that article will work in your case and if you do want to try it, make sure EVERYTHING is backed up before you do. You can also try a different kernel if you like.