Eu configurei o Protetor de Tela para alternar fotos contidas numa pasta no diretório de imagens. Pela experiência com a versão LTS anterior, acredito que mesmo que modifique o modo o problema persiste. O vídeo é onboard, ou seja, não uso qualquer placa dedicada. Vou procurar o pacote que menciona.
natanael@natanael-desktop:~$ sudo su
[sudo] senha para natanael:
root@natanael-desktop:/home/natanael# lshw -short
Caminho do hardware Dispositivo Classe Descrição
===================================================================
system To Be Filled By O.E.M. (
/0 bus Phitronics G31VS2-M
/0/0 memory 64KiB BIOS
/0/4 processor Pentium(R) Dual-Core CP
/0/4/5 memory 64KiB L1 cache
/0/4/6 memory 2MiB L2 cache
/0/c memory 2GiB Memória do sistema
/0/c/0 memory 2GiB DIMM SDRAM Síncron
/0/c/1 memory DIMMProject-Id-Version:
/0/100 bridge 82G33/G31/P35/P31 Expres
/0/100/2 display 82G33/G31 Express Integr
/0/100/1b multimedia NM10/ICH7 Family High De
/0/100/1c bridge NM10/ICH7 Family PCI Exp
/0/100/1c.1 bridge NM10/ICH7 Family PCI Exp
/0/100/1c.1/0 enp1s0 network RTL8101/2/6E PCI Express
/0/100/1d bus NM10/ICH7 Family USB UHC
/0/100/1d/1 usb2 bus UHCI Host Controller
/0/100/1d.1 bus NM10/ICH7 Family USB UHC
/0/100/1d.1/1 usb3 bus UHCI Host Controller
/0/100/1d.1/1/1 input USB Keyboard
/0/100/1d.1/1/2 input USB Optical Mouse
/0/100/1d.2 bus NM10/ICH7 Family USB UHC
/0/100/1d.2/1 usb4 bus UHCI Host Controller
/0/100/1d.3 bus NM10/ICH7 Family USB UHC
/0/100/1d.3/1 usb5 bus UHCI Host Controller
/0/100/1d.7 bus NM10/ICH7 Family USB2 EH
/0/100/1d.7/1 usb1 bus EHCI Host Controller
/0/100/1d.7/1/1 generic 802.11 n WLAN
/0/100/1d.7/1/8 scsi4 storage Cruzer Blade
/0/100/1d.7/1/8/0.0.0 /dev/sdb disk 32GB Cruzer Blade
/0/100/1d.7/1/8/0.0.0/0 /dev/sdb disk 32GB
/0/100/1d.7/1/8/0.0.0/0/1 /dev/sdb1 volume 29GiB Windows FAT volume
/0/100/1e bridge 82801 PCI Bridge
/0/100/1f bridge 82801GB/GR (ICH7 Family)
/0/100/1f.1 storage 82801G (ICH7 Family) IDE
/0/100/1f.2 storage NM10/ICH7 Family SATA Co
/0/100/1f.3 bus NM10/ICH7 Family SMBus C
/0/1 scsi2 storage
/0/1/0.0.0 /dev/cdrom disk DVDRAM GH22NS40
/0/2 scsi3 storage
/0/2/0.0.0 /dev/sda disk 120GB SanDisk SDSSDA12
/0/2/0.0.0/1 /dev/sda1 volume 2929MiB Linux swap volum
/0/2/0.0.0/2 /dev/sda2 volume 54GiB volume EXT4
/0/2/0.0.0/3 /dev/sda3 volume 54GiB volume EXT4
/1 wlxc83a35c4a1cb network Interface sem fio
root@natanael-desktop:/home/natanael#
root@natanael-desktop:/home/natanael# inxi -Fx
System: Host: natanael-desktop Kernel: 4.15.0-20-generic x86_64
bits: 64 gcc: 7.3.0
Console: tty 0 Distro: Ubuntu 18.04 LTS
Machine: Device: desktop Mobo: N/A model: Phitronics G31VS2-M serial: N/A
BIOS: American Megatrends v: P1.00 date: 03/17/2010
CPU: Dual core Pentium E5400 (-MCP-)
arch: Penryn rev.10 cache: 2048 KB
flags: (lm nx sse sse2 sse3 ssse3 vmx) bmips: 10800
clock speeds: max: 2700 MHz 1: 2700 MHz 2: 2700 MHz
Graphics: Card: Intel 82G33/G31 Express Integrated Graphics Controller
bus-ID: 00:02.0
Display Server: X.Org 1.19.6
drivers: intel (unloaded: modesetting,fbdev,vesa)
Resolution: 1280x1024@75.02hz
OpenGL: renderer: Mesa DRI Intel G33
version: 1.4 Mesa 18.0.0-rc5 Direct Render: Yes
Audio: Card Intel NM10/ICH7 Family High Def. Audio Controller
driver: snd_hda_intel bus-ID: 00:1b.0
Sound: Advanced Linux Sound Architecture v: k4.15.0-20-generic
Network: Card-1: Realtek RTL8101/2/6E PCIE Fast/Gigabit Ethernet controller
driver: r8169 v: 2.3LK-NAPI port: e800 bus-ID: 01:00.0
IF: enp1s0 state: down mac: 00:25:22:42:fc:ed
Card-2: Ralink RT5370 Wireless Adapter
driver: rt2800usb v: 2.3.0 usb-ID: 001-002
IF: wlxc83a35c4a1cb state: N/A mac: N/A
Drives: HDD Total Size: 152.0GB (25.6% used)
ID-1: /dev/sda model: SanDisk_SDSSDA12 size: 120.0GB temp: 45C
ID-2: USB /dev/sdb model: Cruzer_Blade size: 32.0GB temp: 0C
Partition: ID-1: / size: 54G used: 6.0G (12%) fs: ext4 dev: /dev/sda3
ID-2: swap-1 size: 3.07GB used: 0.12GB (4%)
fs: swap dev: /dev/sda1
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 47.0C mobo: N/A
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 180 Uptime: 4:44 Memory: 1430.6/1984.2MB
Init: systemd runlevel: 5 Gcc sys: N/A
Client: Shell (bash 4.4.191) inxi: 2.3.56
root@natanael-desktop:/home/natanael#