Ask Ubuntu Asked by user895130 on January 9, 2021
can someone help please urgently as it is disturbing my work from home setup?
It worked fine in Ubuntu 18.04 LTS but issue in 20.04 LTS.
Extra monitor- (philips 273V7QDAB)
Laptop – Inspiron 15R 5000
I also tried to google and tried few bits like disabling DPMS on X. I changed HDMI cable. I dont see any additional drivers to be installed in updates. System is fully upto date. I ran out of options. Please see below output:
DISPLAY driver details:
# lspci -nn | grep VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09)
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Mars [Radeon HD 8730M] [1002:6601]
----
#lshw -c video
*-display
description: VGA compatible controller
product: Mars [Radeon HD 8730M]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0
bus info: pci@0000:01:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
configuration: driver=radeon latency=0
resources: irq:33 memory:a0000000-afffffff memory:c0000000-c003ffff ioport:3000(size=256) memory:c0040000-c005ffff
*-display
description: VGA compatible controller
product: 3rd Gen Core processor Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:32 memory:c1000000-c13fffff memory:b0000000-bfffffff ioport:4000(size=64) memory:c0000-dffff
Thanks, Rajesh
No one faced this issue it seems?.. It has definitely something to do with graphics card bug coping up with refresh rate. Or perhaps heating hardware as sometimes it works for day without this issue. Sometimes frequently blanking out and refresh rate drops too..
Answered by user895130 on January 9, 2021
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