Low refresh rates work, high refresh rates don't
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I just purchased a new 144Hz monitor, but am having trouble setting it up with my PC (via displayport).
At first, I thought it was DOA as the screen would power on but not display anything. All that would happen is the screen would illuminate and go black on an infinite loop - sometimes it would just stay black though. I noticed that if I reduce the refresh rate back down to 60Hz, it would display the image fine. I also noticed that if I changed the displayport version to 1.1, the monitor would also work at the slightly higher refresh rate of 100Hz (but only with 6 bit color).
So there are a few things that I think could be wrong:
- The monitor itself is faulty, and cannot handle high refresh rates
- The cable is of a poor quality, and does not have sufficient bandwidth
- The GPU is faulty
Does anyone have an effective strategy for diagnosing this issue and identifying the faulty component?
SPECS:
GPU: AMD R9 390X
Monitor: Samsung LC49HG90DMEXXY
- 144Hz, 3840 x 1080, Freesync 2
WHAT I'VE TRIED
- Updated monitor firmware to latest version
- Updated GPU drivers
- Restarted computer and monitor
- Disabled/enabled freesync
display resolution gpu displayport refresh-rate
asked Jun 8 at 17:16
protango
112
add a comment |
up vote
0
down vote
favorite
I just purchased a new 144Hz monitor, but am having trouble setting it up with my PC (via displayport).
At first, I thought it was DOA as the screen would power on but not display anything. All that would happen is the screen would illuminate and go black on an infinite loop - sometimes it would just stay black though. I noticed that if I reduce the refresh rate back down to 60Hz, it would display the image fine. I also noticed that if I changed the displayport version to 1.1, the monitor would also work at the slightly higher refresh rate of 100Hz (but only with 6 bit color).
So there are a few things that I think could be wrong:
- The monitor itself is faulty, and cannot handle high refresh rates
- The cable is of a poor quality, and does not have sufficient bandwidth
- The GPU is faulty
Does anyone have an effective strategy for diagnosing this issue and identifying the faulty component?
SPECS:
GPU: AMD R9 390X
Monitor: Samsung LC49HG90DMEXXY
- 144Hz, 3840 x 1080, Freesync 2
WHAT I'VE TRIED
- Updated monitor firmware to latest version
- Updated GPU drivers
- Restarted computer and monitor
- Disabled/enabled freesync
display resolution gpu displayport refresh-rate
asked Jun 8 at 17:16
protango
112
1
I'd suspect your cable... they are fairly cheap, so that would be the first thing I'd try swapping... How long is your current cable?
– Attie
Jun 8 at 17:59
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I just purchased a new 144Hz monitor, but am having trouble setting it up with my PC (via displayport).
At first, I thought it was DOA as the screen would power on but not display anything. All that would happen is the screen would illuminate and go black on an infinite loop - sometimes it would just stay black though. I noticed that if I reduce the refresh rate back down to 60Hz, it would display the image fine. I also noticed that if I changed the displayport version to 1.1, the monitor would also work at the slightly higher refresh rate of 100Hz (but only with 6 bit color).
So there are a few things that I think could be wrong:
- The monitor itself is faulty, and cannot handle high refresh rates
- The cable is of a poor quality, and does not have sufficient bandwidth
- The GPU is faulty
Does anyone have an effective strategy for diagnosing this issue and identifying the faulty component?
SPECS:
GPU: AMD R9 390X
Monitor: Samsung LC49HG90DMEXXY
- 144Hz, 3840 x 1080, Freesync 2
WHAT I'VE TRIED
- Updated monitor firmware to latest version
- Updated GPU drivers
- Restarted computer and monitor
- Disabled/enabled freesync
display resolution gpu displayport refresh-rate
asked Jun 8 at 17:16
protango
112
I just purchased a new 144Hz monitor, but am having trouble setting it up with my PC (via displayport).
At first, I thought it was DOA as the screen would power on but not display anything. All that would happen is the screen would illuminate and go black on an infinite loop - sometimes it would just stay black though. I noticed that if I reduce the refresh rate back down to 60Hz, it would display the image fine. I also noticed that if I changed the displayport version to 1.1, the monitor would also work at the slightly higher refresh rate of 100Hz (but only with 6 bit color).
So there are a few things that I think could be wrong:
- The monitor itself is faulty, and cannot handle high refresh rates
- The cable is of a poor quality, and does not have sufficient bandwidth
- The GPU is faulty
Does anyone have an effective strategy for diagnosing this issue and identifying the faulty component?
SPECS:
GPU: AMD R9 390X
Monitor: Samsung LC49HG90DMEXXY
- 144Hz, 3840 x 1080, Freesync 2
WHAT I'VE TRIED
- Updated monitor firmware to latest version
- Updated GPU drivers
- Restarted computer and monitor
- Disabled/enabled freesync
display resolution gpu displayport refresh-rate
display resolution gpu displayport refresh-rate
asked Jun 8 at 17:16
protango
112
asked Jun 8 at 17:16
protango
112
asked Jun 8 at 17:16
protango
112
asked Jun 8 at 17:16
protango
112
asked Jun 8 at 17:16
protango
112
112
1
I'd suspect your cable... they are fairly cheap, so that would be the first thing I'd try swapping... How long is your current cable?
– Attie
Jun 8 at 17:59
add a comment |
1
I'd suspect your cable... they are fairly cheap, so that would be the first thing I'd try swapping... How long is your current cable?
– Attie
Jun 8 at 17:59
1
1
I'd suspect your cable... they are fairly cheap, so that would be the first thing I'd try swapping... How long is your current cable?
– Attie
Jun 8 at 17:59
I'd suspect your cable... they are fairly cheap, so that would be the first thing I'd try swapping... How long is your current cable?
– Attie
Jun 8 at 17:59
add a comment |
1 Answer
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After some digging I decided to purchase a higher quality display port cable and it worked fine after that. I selected my new cable from the list of "certified" cables on the displayport website as I wanted to guarantee I'd get a good one.
Apparently all display port cables are supposed to have the same capabilities (source), but quality does seem to make a difference especially when you're trying to push a high resolution picture at a high refresh rate.
answered Nov 27 at 2:48
protango
112
add a comment |
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1 Answer
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oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
0
down vote
accepted
After some digging I decided to purchase a higher quality display port cable and it worked fine after that. I selected my new cable from the list of "certified" cables on the displayport website as I wanted to guarantee I'd get a good one.
Apparently all display port cables are supposed to have the same capabilities (source), but quality does seem to make a difference especially when you're trying to push a high resolution picture at a high refresh rate.
answered Nov 27 at 2:48
protango
112
add a comment |
up vote
0
down vote
accepted
After some digging I decided to purchase a higher quality display port cable and it worked fine after that. I selected my new cable from the list of "certified" cables on the displayport website as I wanted to guarantee I'd get a good one.
Apparently all display port cables are supposed to have the same capabilities (source), but quality does seem to make a difference especially when you're trying to push a high resolution picture at a high refresh rate.
answered Nov 27 at 2:48
protango
112
add a comment |
up vote
0
down vote
accepted
up vote
0
down vote
accepted
After some digging I decided to purchase a higher quality display port cable and it worked fine after that. I selected my new cable from the list of "certified" cables on the displayport website as I wanted to guarantee I'd get a good one.
Apparently all display port cables are supposed to have the same capabilities (source), but quality does seem to make a difference especially when you're trying to push a high resolution picture at a high refresh rate.
answered Nov 27 at 2:48
protango
112
After some digging I decided to purchase a higher quality display port cable and it worked fine after that. I selected my new cable from the list of "certified" cables on the displayport website as I wanted to guarantee I'd get a good one.
Apparently all display port cables are supposed to have the same capabilities (source), but quality does seem to make a difference especially when you're trying to push a high resolution picture at a high refresh rate.
answered Nov 27 at 2:48
protango
112
answered Nov 27 at 2:48
protango
112
answered Nov 27 at 2:48
protango
112
answered Nov 27 at 2:48
protango
112
112
add a comment |
add a comment |
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I'd suspect your cable... they are fairly cheap, so that would be the first thing I'd try swapping... How long is your current cable?
– Attie
Jun 8 at 17:59