[Bug 97986] sony vaio with ati graphics flashing flikering

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Feb 8 20:05:33 UTC 2019


Paul Dufresne <dufresnep at gmail.com> changed:

           What    |Removed                     |Added
           See Also|                            |https://bugs.freedesktop.or
                   |                            |g/show_bug.cgi?id=108514

--- Comment #5 from Paul Dufresne <dufresnep at gmail.com> ---
I suspect it could be the same problem as in bug #108514.

Best workaround known would be to boot with nomodeset kernel parameter.

Adding drm.debug=4 (kernel mode setting messages) to kernel parameters
would give more usefull dmesg output.

Suspected problem for #108514 would be related to compute_avivo_pll_[something]
in gpu/drm/radeon/radeon_display.c.
Possibly the max pll clock frequency.

I hope to be able to investigate beginning of next week.

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