[Bug 94985] [HSW] Severe screen flickering on external monitor after i915.enable_psr=1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94985

--- Comment #6 from dnord <pinguin255 at gmail.com> ---
>The VGA flickering has nothing to do with PSR which is an eDP feature.
However PSR is triggering this bug somehow.
 I noticed the following things (about problem with VGA monitor):
1. Problem with VGA monitor completely disappears with i915.enable_psr=2 (and
0, of course, but remains with 1 and 3).
2. VGA monitor flickers only when I'm using two monitors (laptop monitor and
VGA monitor). When I use VGA monitor as a single monitor problem not is not
happening.
3. Problem starts immediately after I switch link_power_management_policy to
min_power and immediately disappears when I switch it back.
4. fifo_underrun messages showing during connection of second monitor only when
bug is happening.

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