[Graphics] Blurry settings and Screen flickering

[soumyab]

Hello! I'm using Kubuntu 18.04 LTS and KDE Plasma 5.12.7..I was facing screen flickering issue but after switching switching the Compositor to "XRender" (described in a AskUbuntu thread) my main issue seems fixed, but, some settings are blurry.(Like Widget settings) How to fix that?

[claydoh]

We need some system specs, including what video card you have, and which driver if t is known.

xrender uses the cpu to do compositing, which is much slower than using opengl via the actual video card. there are bound to be problems.


Knowing system specs will give us better ideas on what to try, as problems like this can be specific to the video card , etc.

Install the package inxi and run the command:

$sudo inxi -F -x

and paste the results here as a quote or code.

[soumyab]

Sorry for my late reply..Here's the result:
System: Host: soumyab-linux Kernel: 4.15.0-45-generic x86_64 bits: 64 gcc: 7.3.0 Console: tty 1
Distro: Ubuntu 18.04.2 LTS
Machine: Device: desktop System: Gigabyte product: N/A serial: N/A
Mobo: Gigabyte model: H61M-S1 v: x.x serial: N/A BIOS: American Megatrends v: FC date: 02/25/2013
CPU: Dual core Intel Core i3-2120 (-MT-MCP-) arch: Sandy Bridge rev.7 cache: 3072 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 13169
clock speeds: max: 3300 MHz 1: 1597 MHz 2: 1606 MHz 3: 1629 MHz 4: 1679 MHz
Graphics: Card: NVIDIA GF119 [GeForce GT 610] bus-ID: 01:00.0
Display Server: X.Org 1.19.6 drivers: nvidia (unloaded: modesetting,fbdev,vesa,nouveau)
Resolution: 1366x768@59.79hz
OpenGL: renderer: GeForce GT 610/PCIe/SSE2 version: 4.6.0 NVIDIA 390.77 Direct Render: Yes
Audio: Card-1 NVIDIA GF119 HDMI Audio Controller driver: snd_hda_intel bus-ID: 01:00.1
Card-2 Intel 6 Series/C200 Series Family High Definition Audio Controller
driver: snd_hda_intel bus-ID: 00:1b.0
Sound: Advanced Linux Sound Architecture v: k4.15.0-45-generic
Network: Card: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
driver: r8169 v: 2.3LK-NAPI port: d000 bus-ID: 03:00.0
IF: enp3s0 state: up speed: 100 Mbps duplex: full mac: 94:de:80:e9:84:72
Drives: HDD Total Size: 1000.2GB (1.0% used)
ID-1: /dev/sda model: WDC_WD10EZEX size: 1000.2GB temp: 41C
Partition: ID-1: / size: 29G used: 8.4G (31%) fs: ext4 dev: /dev/sda8
ID-2: swap-1 size: 1.02GB used: 0.01GB (1%) fs: swap dev: /dev/sda7
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 29.8C mobo: 27.8C gpu: 0.0:52C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 230 Uptime: 56 min Memory: 2533.3/3909.4MB Init: systemd runlevel: 5 Gcc sys: 7.3.0
Client: Shell (sudo) inxi: 2.3.56

[kernelbasher]

I had similar

Graphics:  Device-1: Intel UHD Graphics 620 driver: i915 v: kernel            Display: x11 server: X.Org 1.20.4 driver: modesetting unloaded: fbdev,vesa resolution: 1920x1080~60Hz  
         OpenGL: renderer: Mesa DRI Intel UHD Graphics 620 (Kabylake GT2) v: 4.5 Mesa 19.0.2

[kernelbasher]

Hello! I'm using Kubuntu 18.04 LTS and KDE Plasma 5.12.7..I was facing screen flickering issue but after switching switching the Compositor to "XRender" (described in a AskUbuntu thread) my main issue seems fixed, but, some settings are blurry.(Like Widget settings) How to fix that?

xrender solved it for me and no issues remain

Graphics:  Device-1: Intel UHD Graphics 620 driver: i915 v: kernel  
         Display: x11 server: X.Org 1.20.4 driver: modesetting unloaded: fbdev,vesa resolution: 1920x1080~60Hz  
         OpenGL: renderer: Mesa DRI Intel UHD Graphics 620 (Kabylake GT2) v: 4.5 Mesa 19.0.2