From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 111482] Sapphire Pulse RX 5700 XT power consumption
Date: Thu, 05 Sep 2019 14:53:50 +0000
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Date: Thu, 5 Sep 2019 14:53:50 +0000
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https://bugs.freedesktop.org/show_bug.cgi?id=3D111482
--- Comment #14 from Ilia Mirkin ---
(In reply to Robert from comment #12)
> At least I now know that I can't do anything further. It just would be co=
ol
> if one of the AMD engineers could confirm my assumption that with a
> resolution of 5144x1440 the card always runs at highest memory clock speed
> as it does with a multi monitor setup (from what I've read so far).
[Note, I'm not an AMD engineer.]
In some monitors, such high modes are actually exposed by presenting multip=
le
"tiles" as separate screens. As far as the GPU is concerned, it's 2 actual
monitors (this can only work with DisplayPort, of course).
Can you check if this is the case? I believe "xrandr" should report 2 separ=
ate
monitors in this situation. You mention you have a 49WL95C-W, which the
internet suggests is indeed just 2 panels placed next to each other in a ni=
ce
plastic case.
And in such cases, I believe the AMD drivers clock to the highest rate, sin=
ce
reclocks will cause flickering (since the vsync's of the 2 monitors aren't
sync'd to one another).
--=20
You are receiving this mail because:
You are the assignee for the bug.=
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Date: Thu, 5 Sep 2019 14:53:50 +0000
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Auto-Submitted: auto-generated
Comme=
nt # 14
on bug 11148=
2
from Ilia Mirkin
(In reply to Robert from comment #12)
> At least I now know that I can't do anything fur=
ther. It just would be cool
> if one of the AMD engineers could confirm my assumption that with a
> resolution of 5144x1440 the card always runs at highest memory clock s=
peed
> as it does with a multi monitor setup (from what I've read so far).
[Note, I'm not an AMD engineer.]
In some monitors, such high modes are actually exposed by presenting multip=
le
"tiles" as separate screens. As far as the GPU is concerned, it's=
2 actual
monitors (this can only work with DisplayPort, of course).
Can you check if this is the case? I believe "xrandr" should repo=
rt 2 separate
monitors in this situation. You mention you have a 49WL95C-W, which the
internet suggests is indeed just 2 panels placed next to each other in a ni=
ce
plastic case.
And in such cases, I believe the AMD drivers clock to the highest rate, sin=
ce
reclocks will cause flickering (since the vsync's of the 2 monitors aren't
sync'd to one another).
You are receiving this mail because:
- You are the assignee for the bug.
=
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