A black window covers almost the entire desktop.
It looks like a broken terminal window.
I thought that the cause might be Intel proprietary drivers so I removed it, but that did not help.
Also, I noticed that the system boots without logo Ubuntu.
When I choose a particular kernel in GRUB (4.2.0-19), everything work fine, the problem does not occur.
When I start with the default kernel (4.2.0-35) I have this black window on my desktop.
I added a camera picture because when I made the screenshot, the black windows cannot be seen as if it were not there at all.
My computer is HP 530 Intel® 945GM x86/MMX/SSE2.
I will add that I am new to Linux.
*-display:0
description: VGA compatible controller
product: Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 03
width: 32 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:16 memory:f0400000-f047ffff ioport:3000(size=8) memory:e0000000-efffffff memory:f0480000-f04bffff
*-display:1 UNCLAIMED
description: Display controller
product: Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2.1
bus info: pci@0000:00:02.1
version: 03
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list
configuration: latency=0
resources: memory:f0500000-f057ffff
When I switch tty, the black window fills the screen and is damaged, the font is unreadable.