Hello,
I would like your help with this issue i'm not able to solve. After replace my old screens by a new one (Samsung C34J791) display started to glitch randomly. Under Win10 works fine and I tried several changes as I have read in other posts but it's still present.
Additional info:
/etc/X11$ xrandr -q
Screen 0: minimum 320 x 200, current 3440 x 1440, maximum 16384 x 16384
DisplayPort-0 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected primary 3440x1440+0+0 (normal left inverted right x axis y axis) 797mm x 333mm
3440x1440 59.97*+ 49.99
2560x1440 59.95
2560x1080 60.00 59.94
1920x1080 60.00 50.00 59.94
1680x1050 59.88
1600x900 60.00
1280x1024 75.02 60.02
1440x900 59.90
1280x800 59.91
1152x864 75.00
1280x720 60.00 50.00 59.94
1024x768 75.03 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
720x576 50.00
720x480 60.00 59.94
640x480 75.00 72.81 66.67 60.00 59.94
720x400 70.08
DVI-0 disconnected (normal left inverted right x axis y axis)
DVI-1 disconnected (normal left inverted right x axis y axis)
/etc/X11$ inxi -G
Graphics: Device-1: Advanced Micro Devices [AMD/ATI] Tahiti PRO [Radeon HD 7950/8950 OEM / R9 280] driver: radeon v: kernel
Display: x11 server: X.Org 1.20.11 driver: ati,fbdev unloaded: modesetting,radeon,vesa resolution: 3440x1440~60Hz
OpenGL:renderer: AMD TAHITI (DRM 2.50.0 5.11.0-27-generic LLVM 12.0.0) v: 4.5 Mesa 21.0.3
/etc/X11$ sudo lshw -class display
*-display
descripción: VGA compatible controller
producto: Tahiti PRO [Radeon HD 7950/8950 OEM / R9 280]
fabricante: Advanced Micro Devices, Inc. [AMD/ATI]
id físico: 0
información del bus: pci@0000:01:00.0
versión: 00
anchura: 64 bits
reloj: 33MHz
capacidades: pm pciexpress msi vga_controller bus_master cap_list rom
configuración: driver=radeon latency=0
recursos: irq:31 memoria:e0000000-efffffff memoria:f7e00000-f7e3ffff ioport:e000(size=256) memoria:c0000-dffff
Glitch example: https://drive.google.com/file/d/1477...ew?usp=sharing
Any suggestions are welcome.
Thanks!
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