Screen randomly flickers

RyanJ

Hi
I have just moved across from Ubuntu budgie and I'm very pleased with solus budgie. I find it to be much more snappy and functional for me, but I am having random flickering that is infrequent when it occurs eg half an hr to 4 min between occurances. It looks like random black lines of various width across the screen without the screen going off.
I have a dual boot system on the same hard drive on a seperate patrtiotion with windows which is running fine and the issue has only occured in solus budgie. There is no drivers in doflicky coming up to be modified/updated. It is on a laptop- lenova ideapad, Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz, 16gb ram, onboard graphics Skylake GT2 [HD Graphics 520], and WD Blue 500GB SATA SSD
I am thinking it may have something to do with the graphics driver but i am fairly new to linux and fresh to solus.
Any help would be much appreciated as i would love to stick with solus.
Ryan

jma1795

RyanJ If you can, go into your BIOS and disable intel "c" states. Its a power setting that allows the CPU to go into a further "power savings" mode which seems to be causing issues. I've got it disabled on mine after trying a whole bunch of things, had to reload (because I corrupted some drivers) and on a fresh install of Solus I have been going almost an hour now without any flickers.

jma1795

I have the same issue. Mine is a fresh install on my dell lattitude e5470. I ran screenfetch to give the specifics.
OS: Solus 4.2 fortitude

Kernel: x86_64 Linux 5.11.22-180.current

Disk: 500GB NVMe SSD

CPU: Intel Core i5-6200U @ 4x 2.3GHz [45.0°C]

iGPU: Mesa Intel(R) HD Graphics 520 (SKL GT2)

RAM: 16GB DDR4

It just blips dark for a moment, then its fine. Never had this issue before. I've had both Windows 10 and Ubuntu (Manjaro) on this laptop before and have had no issues.

h3o

On a similar topic, my screen does a little Celtic shake from time to time. Have experienced it on Solus since 4.0 (wasn't aware of Solus prior to that), and doesn't seem to matter what DE or WM I'm using. Not sure what causes it but seems benign and haven't heard anyone else bring it up so doesn't seem wide-spread. My hardware is usually pretty Linux friendly though - ThinkPad w/ 6th gen intel i5 processor and integrated intel graphics, and I haven't experienced this on other distros.