Screen glitching after recent update

[John Magdy Lotfy]

Hello everyone,
After a recent update to "20.10" I am seeing many glitches in my screen specially when I open a gnome based application...

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1923864/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Brian Murray (brian-murray)]

Thank you for taking the time to report this issue and helping to make Ubuntu better. Examining the information you have given us, this does not appear to be a bug report so we are closing it and converting it to a question in the support tracker. We understand the difficulties you are facing, but it is better to raise problems you are having in the support tracker at https://answers.launchpad.net/ubuntu if you are uncertain if they are bugs. You can also find help posting your problem in the support forum of your local Ubuntu's community http://loco.ubuntu.com/ or asking at http://askubuntu.com. For help on reporting bugs, see https://help.ubuntu.com/community/ReportingBugs.

[John Magdy Lotfy (zorono)]

(https://askubuntu.com/questions/1336285/gnome-is-glitching-after-recent-update)

After a recent update to my 20.10 Ubuntu device, a new problem with GNOME appeared where everything is glitching specially when I open a GTK based window like "Terminal" and there are lines that flicker through the screen (like tv static) and the Screen windows gets mixed....

GNOME version: 3.38.3
Windowing System: X11
GPU: Intel® HD Graphics 4000 (IVB GT2)
CPU: Intel® Core™ i5-3230M CPU @ 2.60GHz × 4
Kernel: 5.8.0-50-generic

Video: https://streamable.com/7fpimk

[John Magdy Lotfy (zorono)]

$ **lspci -nnk | egrep -i '3d|aphics|display|nouveau|nvidia|radeon|trident|vesa|vga'**:
```
00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09)
 Subsystem: Hewlett-Packard Company 3rd Gen Core processor Graphics Controller [103c:17f4]

```

$ **uname -a**:
```
Linux Stack-Linux 5.8.0-50-generic #56-Ubuntu SMP Mon Apr 12 17:18:36 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
```

$ **sudo Xorg -version**:
```
X.Org X Server 1.20.9
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.15.0-140-generic x86_64 Ubuntu
Current Operating System: Linux Stack-Linux 5.8.0-50-generic #56-Ubuntu SMP Mon Apr 12 17:18:36 UTC 2021 x86_64
Kernel command line: BOOT_IMAGE=/vmlinuz-5.8.0-50-generic root=UUID=b603ef31-0b9c-44dc-b76c-00563dacbf42 ro quiet splash vt.handoff=7
Build Date: 08 April 2021 12:24:24PM
xorg-server 2:1.20.9-2ubuntu1.3 (For technical support please see http://www.ubuntu.com/support)
Current version of pixman: 0.38.4
 Before reporting problems, check http://wiki.x.org
 to make sure that you have the latest version.
```

$ **inxi -F**:
```
System:
  Host: BrownTurbo-Linux Kernel: 5.8.0-50-generic x86_64 bits: 64
  Desktop: N/A Distro: Ubuntu 20.10 (Groovy Gorilla)
Machine:
  Type: Laptop System: Hewlett-Packard product: HP ProBook 4540s v: A1008C11
  serial: <superuser/root required>
  Mobo: Hewlett-Packard model: 17F6 v: KBC Version 58.21
  serial: <superuser/root required> UEFI: Hewlett-Packard v: 68IRR Ver. F.68
  date: 04/11/2019
CPU:
  Info: Dual Core model: Intel Core i5-3230M bits: 64 type: MT MCP
  L2 cache: 3072 KiB
  Speed: 1262 MHz min/max: 1200/3200 MHz Core speeds (MHz): 1: 1586 2: 2643
  3: 1799 4: 2146
Graphics:
  Device-1: Intel 3rd Gen Core processor Graphics driver: i915 v: kernel
  Device-2: Sunplus Innovation type: USB driver: uvcvideo
  Display: x11 server: X.Org 1.20.9 driver: modesetting unloaded: fbdev,vesa
  resolution: 1366x768~60Hz
  OpenGL: renderer: Mesa DRI Intel HD Graphics 4000 (IVB GT2)
  v: 4.2 Mesa 20.2.6
Audio:
  Device-1: Intel 7 Series/C216 Family High Definition Audio
  driver: snd_hda_intel
  Sound Server: ALSA v: k5.8.0-50-generic
Network:
  Device-1: Ralink RT3290 Wireless 802.11n 1T/1R PCIe driver: rt2800pci
  IF: wlo1 state: down mac: 48:5a:b6:68:e4:71
  Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
  driver: r8169
  IF: enp5s0 state: up speed: 100 Mbps duplex: full mac: 9c:b6:54:1f:62:ed
  IF-ID-1: docker0 state: down mac: 02:42:b7:9b:e8:b3
Drives:
  Local Storage: total: 465.76 GiB used: 335.35 GiB (72.0%)
  ID-1: /dev/sda vendor: Seagate model: ST500LT012-9WS142 size: 465.76 GiB
Partition:
  ID-1: / size: 91.17 GiB used: 14.04 GiB (15.4%) fs: ext4 dev: /dev/sda1
  ID-2: /boot size: 2.69 GiB used: 155.5 MiB (5.7%) fs: ext4 dev: /dev/sda4
  ID-3: /home size: 81.74 GiB used: 62.49 GiB (76.4%) fs: ext4
  dev: /dev/sda7
  ID-4: /var size: 9.10 GiB used: 7.89 GiB (86.7%) fs: ext4 dev: /dev/sda2
Swap:
  ID-1: swap-1 type: partition size: 5.59 GiB used: 550.9 MiB (9.6%)
  dev: /dev/sda3
Sensors:
  System Temperatures: cpu: 53.0 C mobo: 0.0 C
  Fan Speeds (RPM): N/A
Info...