Black display after minor hardware change
by linuxbird from LinuxQuestions.org on (#6JWBB)
I haven't managed to make sense of this, so I thought I would throw it out there. I have worked for a couple of weeks on this issue, and have hit the brick wall.
Slackware 15 system, with triple headed monitors. No problems there. After several years the graphics card, XfX HD-677X-z5hd, with 1GB and 5 mini DP sockets. The fax seized and the only option was to return it to the factory. They turned it around reasonably quickly, and two weeks later, I had the new board in hand. I installed it, and that is where my problems began.
Let's call the monitors A, B and C. B&C now work, and A does not show a signal. Everything was connected with DVI. I had a spare cable for DP, so I tried that, no joy.
I tried every adapter, cable and monitor combination I had, in different DP sockets. No joy. I bought a new, fourth miniDP to DVI adapter. No joy. Well, actually it works with B&C, just not A.
I tried a new DVI cable, no joy.
The computer recognizes the monitor, but it is not used after Slackware comes up. So perhaps static or something got it when I was installing things after the new graphics card. So I bought a replacement monitor, figuring, OK perhaps that is it.
New (to me) monitor, no joy. Same behavior. Black screen, and the display tool identify button does not identify it.
Since I had additional adapters, I tried using 4 adapters, and moving A or it's replacement around on ports. Still no joy.
So I am stuck, with a pile of notes with written the matrices of each experiment on them. A pad of 1/4" rule graph paper.
I am at a loss, and welcome any sane suggestions, although I think I may have tried them all.
MB is a gigabyte board, G77 vintage. And, again, this system worked just fine with the old graphics card, until the fan went toes up on it.
Any ideas?
Slackware 15 system, with triple headed monitors. No problems there. After several years the graphics card, XfX HD-677X-z5hd, with 1GB and 5 mini DP sockets. The fax seized and the only option was to return it to the factory. They turned it around reasonably quickly, and two weeks later, I had the new board in hand. I installed it, and that is where my problems began.
Let's call the monitors A, B and C. B&C now work, and A does not show a signal. Everything was connected with DVI. I had a spare cable for DP, so I tried that, no joy.
I tried every adapter, cable and monitor combination I had, in different DP sockets. No joy. I bought a new, fourth miniDP to DVI adapter. No joy. Well, actually it works with B&C, just not A.
I tried a new DVI cable, no joy.
The computer recognizes the monitor, but it is not used after Slackware comes up. So perhaps static or something got it when I was installing things after the new graphics card. So I bought a replacement monitor, figuring, OK perhaps that is it.
New (to me) monitor, no joy. Same behavior. Black screen, and the display tool identify button does not identify it.
Since I had additional adapters, I tried using 4 adapters, and moving A or it's replacement around on ports. Still no joy.
So I am stuck, with a pile of notes with written the matrices of each experiment on them. A pad of 1/4" rule graph paper.
I am at a loss, and welcome any sane suggestions, although I think I may have tried them all.
MB is a gigabyte board, G77 vintage. And, again, this system worked just fine with the old graphics card, until the fan went toes up on it.
Any ideas?