My macpro7,1 often displays red instead of playing video, wether in Quicktime, VLC, or the browser. Restarting works for a couple hours.
Has anybody experienced this?
Has anybody experienced this?
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MP 7,1 macpro7,1 red video
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No experience like that - sorry.
Couple guesses: monitor bad - heats up after a while? Or maybe a bad cable - trying another cable would be my first choice just because it's easy.
What video card are you using, and what type of connection, i.e., HDMI, USB-C or ?
Are you restarting the Mac, or just the monitor, or both?
Tom
Couple guesses: monitor bad - heats up after a while? Or maybe a bad cable - trying another cable would be my first choice just because it's easy.
What video card are you using, and what type of connection, i.e., HDMI, USB-C or ?
Are you restarting the Mac, or just the monitor, or both?
Tom
Just restarting the Mac. But I doubt it’s the monitors or cable, because just the part of the screen playing any hardware accelerated video is red.
It might be related to your specific hardware and cable type. Have a look here: https://forums.macrumors.com/threads/mac-pro-2019-graphics-card.2230710/
It seems some combinations of card/cable/monitor can be, um, I think the technical term is "flaky."
If you could post some specifics for your setup, it may help someone (probably not me ? ) make a suggestion that solves your problem.
Tom
It seems some combinations of card/cable/monitor can be, um, I think the technical term is "flaky."
If you could post some specifics for your setup, it may help someone (probably not me ? ) make a suggestion that solves your problem.
Tom
Mac Pro (2019)
3.3 GHz 12-Core Intel Xeon W
64 GB 2933 MHz DDR4
AMD Radeon Pro 580X 8 GB
DELL U2718Q Display x 3
1x USB-C + 2x HDMI on the video card
3.3 GHz 12-Core Intel Xeon W
64 GB 2933 MHz DDR4
AMD Radeon Pro 580X 8 GB
DELL U2718Q Display x 3
1x USB-C + 2x HDMI on the video card
I realize this link is for Windows: https://www.winxdvd.com/convert-4k-video/4k-video-errors-and-solutions.htm#hardware
Does your problem look anything like #5 in that article?
Also, what version of MacOS are you using? And, does the problem occur equally on all three monitors?
Tom
Does your problem look anything like #5 in that article?
Also, what version of MacOS are you using? And, does the problem occur equally on all three monitors?
Tom
On Big Sur, happened on Catalina as well, occurs on all three. Doesn't look like that. Just imagine watching YouTube and the div with the video on it displays pure red, i.e. #FF0000.
I think it's the video card.
I think it's the video card.
It's been a while since I replaced my graphics card; I removed the 580X MPX and replaced it with a 5700X MPX so the specifics have evaporated.
I have a 2-monitor setup so my observations may not apply.
I dimly recall that if I had the monitors plugged in one way they would not always wake up correctly, and that if the machine went to sleep they would not wake up properly.
I think I ended up connecting them to separate channels(?) to get them to behave which meant moving one to HDMI and the other to Thunderbolt. I think. I know this doesn't correlate very well with Apple's statement that the 580X MPX can drive six 4K monitors, but that's the way mine reacted. Possibly one of yours could go up top to the case-mounted Thunderbolt port? At least maybe as an experiment. I seem to recall changing from one HDMI port to another also made some sort of difference.
Sorry for the vagueness. Best I could do,
Tom
I have a 2-monitor setup so my observations may not apply.
I dimly recall that if I had the monitors plugged in one way they would not always wake up correctly, and that if the machine went to sleep they would not wake up properly.
I think I ended up connecting them to separate channels(?) to get them to behave which meant moving one to HDMI and the other to Thunderbolt. I think. I know this doesn't correlate very well with Apple's statement that the 580X MPX can drive six 4K monitors, but that's the way mine reacted. Possibly one of yours could go up top to the case-mounted Thunderbolt port? At least maybe as an experiment. I seem to recall changing from one HDMI port to another also made some sort of difference.
Sorry for the vagueness. Best I could do,
Tom
Hi, I also have this red screen on video issue and many more graphic glitches,
After a lot of research I found this was caused when vram reaches 100% or nearly 100%,
I’m using the Radeon Pro 580X, and I monitor the vram with iStat Menus.
You can fix the red screen thing by “sleeping” your monitor (I have a mission control hot corner assigned to turn the display off) this will bring the vram to lower % at least from the iStat menus vram read, it kinda resets it or at least fixes it temporarily until the vram reaches 100% again.
Now, last week I updated to 11.5 and I have been working for hours with the vram at 100% and I have had no issues since then. Hope this helps!
After a lot of research I found this was caused when vram reaches 100% or nearly 100%,
I’m using the Radeon Pro 580X, and I monitor the vram with iStat Menus.
You can fix the red screen thing by “sleeping” your monitor (I have a mission control hot corner assigned to turn the display off) this will bring the vram to lower % at least from the iStat menus vram read, it kinda resets it or at least fixes it temporarily until the vram reaches 100% again.
Now, last week I updated to 11.5 and I have been working for hours with the vram at 100% and I have had no issues since then. Hope this helps!
Also this link describes the red screen and other graphical issues, but as I said all these seems to be fixed in macOS 11.5
Graphics Issues on the 2019 Mac Pro
I’m posting this in the hopes that if someone else is running into this issue, this will pop up when they Google it. Shoutout to Erik at AppleCare Enterprise for taking ownership of my case u…
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