slow with Xorg using > 70 % of the CPU.
I see this issue with kernel 4.9.0-4.
Smilar thing has been reported:
As mentioned elsewhere kernel 4.9.0-3 doesn't show this problem; then, a
temporary
workaround is boot the system with a previous kernel <= 4.9.0-3
Best regards,
Tino
From: Tino Calancha
Date: Tue, 02 Jan 2018 19:31:46 +0900
Message-ID: <87h8s4sga5@gmail.com>
FWIW I have been suffering screenn flickering in Debian 9 since 1 or 2
weeks ago.
The flickering is _very_ serious: it makes my box almost unusable.
Booting with kernel option:
i915.enable_rc6=0
significantly reduces the problem but it doesn't completely fix it.
Instead the following fix works:
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