I have a 300W supply, but nothing else running. Could be part of the issue, but that wouldn't explain the Radeon HD6450 not working.
I did uninstall it and then restored from backup with tar --keep-newer-files for all the affected directories. I think I'm back to normal on that.

What gives on the power supply is the way the power is split. You won't have more than half an amp on -12V, but considerable amperage on +12V, +5V & +3.3V rails. Can you borrow someone's hulking great PSU?

Hello Mfoley,

According to the link below the Radeon HD6450 they recommend a 400W power supply. I don't know but according
to a review on newegg someone had it running on a 280W PSU.

http://www.amd.com/en-us/products/gr...ktop/6000/6450

https://www.newegg.com/Product/Produ...82E16814102933

System requirements and recommendations:

PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
400 Watt or greater power supply recommended6 (500 Watt for AMD CrossFireX™ technology in dual mode)
Certified power supplies are recommended. Refer to http://support.amd.com/en-us/recommended/power-supplies
for a list of Certified products
Minimum 1GB of system memory
Installation software requires CD-ROM drive
DVD playback requires DVD drive
Blu-ray™ playback requires Blu-ray drive

Yeah, I'm having no luck with this. I traded in the Radeon and bought an EVGA gForce 210 (NVIDIA chipset) but lspci doesn't even see it. OK, I've got a 400W power supply laying around here somewhere. I'll try that and report back.

No go on 400W PS. lspci sees neither the NVIDIA nor FirePro cards in the PCIe slot, yet it did see the ATI card as of my post on 02-18-17, 09:00 PM. Has it possibly gone bad since with my futzing around? I run out and get another motherboard!!!

RadicalDreamer: the fellow on that tomshardware.com link also had the same problem until he installed the Windows drivers. I'm not using Windows. I've downloaded the NVIDIA driver for Linux/64 from here, http://www.nvidia.com/Download/drive...px/81761/en-us, but I think I need to see the card in lspci before that's worth trying.

Hello Mfoley,

Has it possibly gone bad since with my futzing around? Could be. Try going to the bios and loading the default settings and try again.

Bios should pick it up regardless of drivers. The drivers only come into effect when linux starts up and when going to X. I'm confused. Is bios picking up the card? If a monitor is hooked only to the graphics card does it come on showing bios?

May need to reset CMOS on the board using the instructions for that board.

If you plan to use nvidia drivers you'll need to remove nouveau and use the nouveau blacklist package. My graphics cards I've booted linux without the drivers. You should get the latest build of the legacy driver you use: http://www.nvidia.com/object/unix.html

Nvidia is good at keeping it functional on newer builds of x.


Did you touch metal to ground yourself before messing with the motherboard? If not it could have been shorted. If bios isn't picking up the card then drivers or anything you do in linux isn't going to help anything. The problem is before linux is loaded with the linux drivers.

Long story short: please, stop messing your own time, your chance to make this thing work in Slackware(64) 14.2 are minimal!

Long story:

You really believe that for a x4 lane you got a video card able to drive a freaking number of four monitors, aka your ATI FirePro 2450?

How credulous! Who lied that to you? I have news for you: that's a damned video extension card, which should receive the already processed data from a main video card, which do all hard work.

In other hand, that main video card should be also AMD ATI, and your single option for a video-card in your glorious entry-level motherboard is the built-in NVIDIA GeForce 7025 which sucks royally, even if it will work.

BUT it will NOT work together with your video extension card, just like you can't obtain a hybrid between a dog and a cat.

In my opinion, you need a professional motherboard, at least with two slots x16, and to use as main video card also a professional AMD one.

For the Gods sake, you cannot pair professional and mainstream components as you like!

Finally, the grace hit: Slackware care for the professional environments is next to zero, and personally I believe that someone from the Slackware Team hate with passion the AMD closed source drivers, then they tried the best to make impossible for a rookie to use the AMD's closed source software in Slackware 14.2 and beyond.

AND you need exactly that closed source driver for FirePro, to bring this thing to life. That's WHY I said that you need also as main video card a professional AMD one.

Then: they given a glorious NOPE to your naughty idea to use this crazy hardware combination under Slackware64 14.2

So, because AMD decides to stagnate their fglrx driver and not provide support for X 1.18, Slackware devs hate AMD blobs? And they made it their personal mission to ensure 14.2 is updated beyond what AMD blobs support? Man, I'd love to be in your mind for 5 minutes, just to figure out how you come to the ridiculous conclusions that you do. Should Slackware just stay on X 1.17 forever? If you remember, when Slackware moved to 1.18 in the 14.2 development cycle, Nvidia proprietary drivers also broke because they didn't have support for 1.18. If I remember right, it took a few weeks until proper support was added (goes to show that if you want proper binary driver support, AMD is probably not the card you should go for -- as has been proven time and again for years).

There is no vendetta out against proprietary drivers (Nvidia or AMD)... but at the same time, Pat and team aren't going to hold back Slackware's development because some closed-source software isn't being updated as it should.

And AMDGPU-Pro is working on Slackware 14.2. There are SlackBuilds available from both me and davjohn. While working on the SlackBuild, I saw no signs of Slackware devs trying to block attempts at getting the driver to work. However, it doesn't work on -current because, again, AMD is behind the times in adding support for X 1.19. But if you're running a production machine, you probably shouldn't be on -current anyway...

@bassmadrigal

http://pro.radeon.com/en-us/radeon-p...erprise-users/

This is NOT your AMDGPU-PRO driver.

OK, some progress! Given what I've read elsewhere and via the links provide by kind respondants in this thread, it seems that the on-board video controller on my ASUS M4N68T-M-V2 motherboard cannot be disabled entirely. The link posted by RadicalDreamer on 21-Feb-2017, 01:36 AM was for a fellow with basically my setup, but on Windows, and he had to load drivers in the WIN7 OS to get it to work.

THEREFORE ... I've purchased a new ASRock 970M Pro3 motherboard with NO on-board video and 2 PCIe x16 slots. Both my flavors of video cards work ... sort of. Now I need some direction on which card solution to pursue.

With respect to Darth Vadar's comments, it is certainly probably that my hardware combination was not suited to what I wanted to do. Hence my new motherboard solution (hopefully). As to whether Slackware will support 4 monitors, I did query people about support in this thread http://www.linuxquestions.org/questi...rs-4175597701/, and the consensus was yes I can -- I asked that before even pursing this project.

So, here's what I've got:

Using the FirePro 2450 [AMD/ATI] with 2 connectors of 2 dongles each (i.e. 4 monitors). 2 of the 4 monitors (both on the same dongle) came up with the Slackware boot screen, and both proceeded to show boot progress until the point where the screen font shrinks, then the VGA connected screen blanked out and showed the message, "Cannot display this (VGA) video mode". Running KDE showed the login background image on the other (HDMI) screen, but no login dialog. lspci for this is:
The EVGA geForce 210 (NVIDIA) showed the Slackware splash screen only on the HDMI monitor, but when the boot progress when to the small font, it showed on both monitors. KDE shows both screens per a normal dual monitor computer. The lspci for this is:
Next step: possibly I can get drivers for the FirePro, although I'm a bit skeptical because apparently this is a closed architecture card and web research indicates that NVIDIA provides better support for Linux generally.

I have not yet tried a 2nd EVGA (NVIDIA) card in this box. I could do that and see what happens.

I already have the FirePro card which will support 4 monitors, hardware-wise. I mail-ordered it and it will be a bit of a pain to return. On the other hand, I'll have to go and buy another EVGA card, and I don't know for sure whether it will be as simple as plugging in a 2nd card. So all-in-all if I can get the FirePro working without moving my butt from my seat, that would be preferable.

Suggestions?

Sorry, you said "impossible for a rookie to use the AMD's closed source software in Slackware 14.2 and beyond", which didn't indicate that you only meant their enterprise drivers. Closed source drivers do work in Slackware 14.2 in the form of AMDGPU-Pro. I haven't ever needed to look at their enterprise/workstation drivers.

Anyway, how did Slackware devs try their "best to make impossible for a rookie to use the AMD's closed source software in Slackware 14.2 and beyond."

I assume that this driver lacks support for X v1.18, and that's the reasoning for your complaint? Blame AMD for not staying up-to-date on a release of X that is over 15 months old. If they were behind in the hardware game by 15 months... AMD would be laughed out of existence. If they were behind on Windows driver support by 15 months (let's say they didn't support Windows 10 until 10 months after it was released), AMD would be laughed out of existence. Why do you blame Slackware devs for what is obviously AMD's shortcoming?

More info ... lacking patience, I went and bought a 2nd EVGA geForce 201 (NVIDIA) card. Sadly, that didn't "just work." The monitors on the second card stay blank. lspci does show both cards:
So, as to my previous question ... now that both my ATI and NVIDIA cards show up nicely, and the NVIDIA card in particular does 2 monitors w/o problem. What should I try next to get monitors 3 and 4 working? Ideas on either card are worth trying at this point. I've downloaded NVIDIA-Linux-x86_64-340.76.run, released 2015.1.27, which is the most recent NVIDIA Linux driver as far as I can tell. Do I need to install that or are there some kernel mods necessary?

bassmadrigal, a definitive response to Darth Vader would be my setup actually working!

Hello Mfoley,

You may want to look through this link below if you plan on using xrandr.

https://wiki.archlinux.org/index.php/multihead

1 members found this post helpful.

If you are trying to run two different VGA cards, that can be problematic. Even in modern systems, trying to run two different video cards can be a bit troublesome. Use either one, or the other, or two of the same type (for crossfire or SLI).

Let's at least try to get the FirePro up and running first. Worry about the GeForce 210s later. Just plug in one card to the top PCIE x16 rail, leave the rest empty.

That card should be supported by the current up-to-date kernels, Xorg, xf86-video-ati, as well as the latest mesa drivers. You shouldn't need the proprietary drivers at all, and in fact I'd recommend not using them. The free drivers from Xorg have far better compatibility.

Try to use this to at least generate a full xorg.conf to "get it working" from the terminal, if you can at least get this far:

This SHOULD at least get you a screen running under X with either the "radeon" driver or the "modesetting" driver depending on which was picked up first. Most AMD cards should pick up the radeon driver. Run "startx" and cross your fingers you see graphics.

If you can at least get this going, let us know.