Comment 10 for bug 1987711

Well, looks like bug occured again.
In drm-tip, and also it occured in version v5.19.5

I realized, that I have also computer with se same(i believe) graphic card, and i do not remember for problem to occur on this pc even once.

so I looked for difference in these two computers.

I tried these commands to find difference:
glxinfo -B
lscpu
lshw

And (from my point of view) interesting difference is:

glxinfo:
Pc where error does not occures:
    Version: 22.0.1
    Video memory: 3072MB

pc where error occures:
    Version: 22.0.5
    Video memory: 15928MB

(note, that pc where error does not occures has 8GB ram, and the one where error occures has total 16GB ram.) ie, probably video memory can consume entire ram?
But I did not remember setting that, so these have to be default settings, or do not know.)

lshw:

pc ok: lshw
          product: Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz
          vendor: Intel Corp.
          physical id: 1
          bus info: cpu@0
          version: 6.78.3
          size: 2800MHz
          width: 64 bits

pc nok: lshw
          product: Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz
          vendor: Intel Corp.
          physical id: 1
          bus info: cpu@0
          version: 6.78.3
          size: 2700MHz
          capacity: 2800MHz
          width: 64 bits

there is different "size" value, and pc that does not shows screen shifting misses "capacity".

lscpu differs in these two rows:
pc ok: lscpu

Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp
Vulnerability Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization
Vulnerability Spectre v2: Mitigation; IBRS, IBPB conditional, RSB filling

pc nok: lscpu

Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl
Vulnerability Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization
Vulnerability Spectre v2: Mitigation; IBRS, IBPB conditional, RSB filling, PBRSB-eIBRS Not affected

Main difference is in seccomp, and PBRSB-eIRBS Not affected... have no idea if it is something interesting.

anyway, full list of response commands is in attachment.

I may try to downgrade from version 22.0.5 to 22.0.1 but i am not sure what exactly to downgrade.

P.s.: I just remembered, that collegue did in past some ram upgrade (from 4 to 8) so there is little chance, that pc that is ok, was originally installed with only 4gb ram. (but cannot confirm that)