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Not able to invert colors | xcalib -a -i stopped working #12

@harsh-a1

Description

@harsh-a1

I used the command xcalib to invert the colors on my screen and it was working fine for a long time till suddenly somehow it stopped working.I am unable to diagnose as to what has caused this.

Now when I run the command it has no effect on the screen and I get the following message :

xcalib -i -a
Warning - Unable to get display calibration

What could have gone wrong? Could this be a bug?

Following is the output of "xcalib -i -a -v" command -

XRandR output:      	HDMI-2
Warning - Unable to get display calibration
Red Brightness: 99.902344   Contrast: -102300.000000  Max: 0.000000  Min: 0.999023
Green Brightness: 99.902344   Contrast: -102300.000000  Max: 0.000000  Min: 0.999023
Blue Brightness: 99.902344   Contrast: -102300.000000  Max: 0.000000  Min: 0.999023
X-LUT size:      	1024

System Specs -

Linux harsh 5.15.37-1-lts #1 SMP Sun, 01 May 2022 15:44:53 +0000 x86_64 GNU/Linux

00:00.0 Host bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register (rev 21)
	Subsystem: Intel Corporation Device 2060
	Flags: bus master, fast devsel, latency 0
	Kernel driver in use: iosf_mbi_pci

00:02.0 VGA compatible controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller (rev 21) (prog-if 00 [VGA controller])
	DeviceName:  CPU
	Subsystem: Intel Corporation Device 2060
	Flags: bus master, fast devsel, latency 0, IRQ 123
	Memory at 80000000 (64-bit, non-prefetchable) [size=16M]
	Memory at 88000000 (64-bit, prefetchable) [size=128M]
	I/O ports at f000 [size=64]
	Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: i915
	Kernel modules: i915

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