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Messages - MPC7500

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376
User Zone / Re: Crackling sound with Kernel 5.6.x
« on: June 09, 2020, 09:00:57 am »
No, the quality is good. The only thing was that from time to time speech-dispatcher appears in the GNOME settings audio. Then the audio sounds similar to the Bad.mp3. After I removed the speech-dispatcher everything was fine.

377
Operating Systems and Porting / Re: [NEWS] Fedora 32 is released
« on: June 09, 2020, 07:04:24 am »
Turned on the Computer. The display switched automatically to the AMD port. Then I got a black screen and I had to switch manually to the AST port to get a screen. After Petitboot I have to switch back to the AMD.

Normally -> Power on -> switch automatically to AST -> after Petitboot switch manually to AMD.

378
Operating Systems and Porting / Re: [NEWS] Fedora 32 is released
« on: June 08, 2020, 05:11:09 pm »
I have also connected both GPUs to my display. But no matter which Kernel I was using (Kernel 5.4/ 5.5 or Kernel 5.6.13+) I always had to manually switch between the GPUs.

I think that in my case both GPUs are active after switching on. Because every now and then (very rarely) the display switches to the AMD GPU at startup.

379
User Zone / Re: Crackling sound with Kernel 5.6.x
« on: June 08, 2020, 04:54:06 pm »
Hi,

nothing special.
Code: [Select]
GRUB_CMDLINE_LINUX="rd.lvm.lv=fedora/root rd.lvm.lv=fedora/swap rhgb quiet"
See link to the Kernel 5.4 alsa-info.sh output and Kernel 5.6 alsa-info.sh output

The only difference that I noticed while flying over it was:
Kernel 5.4:
Code: [Select]
0 [Generic ]: HDA-Intel - HD-Audio Generic
                      HD-Audio Generic at 0x600c0000a0000 irq 22

Kernel 5.6:
Code: [Select]
0 [HDMI ]: HDA Intel - HDA ATI HDMI
                      HDA ATI HDMI at 0x600c0000a0000 irq 23

Can a difference in IRQ cause this problem?

380
User Zone / Re: Crackling sound with Kernel 5.6.x
« on: June 07, 2020, 05:22:34 pm »
No. I think it's different. Two mp3s attached.

The quiet noise at the beginning comes from the recording. The slight crackling is like on an LP and the Bad.mp3 recording is totally distorted. Unfortunately I cannot reproduce it or provoke it. With Kernel 5.4 the sound is crystal clear.


381
User Zone / Crackling sound with Kernel 5.6.x
« on: June 06, 2020, 10:45:07 am »
I have a problem with kernel 5.6 and sound output over a Navi RX 5500 GPU. It's a rustle/ distortion gets worse with echo. The whole thing disappears then becomes and then reappears. Sounds similar to speech-dispatcher being activated. But I have already deleted this one.

With kernel 5.4 this problem does not occur. Is the problem perhaps already known or how can I localize the problem?

dmesg output
Kernel 5.4: https://pastebin.com/H5F3VK3W
Kernel 5.6: https://pastebin.com/gnTv63NG

382
Blackbird / Re: power consumption figures?
« on: June 02, 2020, 06:38:16 pm »
I hardly guess, row four is also the complete (measured at the wall) system.
The top row is also the complete system (except a optical drive, minus RX5500 XT).

You can't compare measured at the wall with data reported by lm_sensors figures.
Data reported by lm_sensors is CPU alone, AFAIK.

You should compare row one with row four instead.
madscientist159 claims that the idle of 4-core and 8-core are identical, IIRC.

383
Blackbird / Re: power consumption figures?
« on: June 02, 2020, 08:21:39 am »
On the Blackbird page you will figures, too.

384
Blackbird / Re: How many fans per FAN header?
« on: May 23, 2020, 11:43:46 am »
I don't think this will make any difference. Because the bottleneck will still be the Y-cable and not the fan connector itself.

385
Yes. It's mentioned also here.
Also the USB2 port is blocking some cards ...

386
Blackbird / Re: Blackbird memory options...
« on: May 21, 2020, 05:06:33 pm »
I wouldn't look at speed, since most of them run at 2666MHz anyway.
I would buy as much RAM as I want to pay for it. I would buy 32GB (€130).

The performance is of course better if both slots are in use.

387
Blackbird / Re: How many fans per FAN header?
« on: May 21, 2020, 04:55:06 pm »
Hmm, I never thought about that. In my BB I have five fans in total.

2x Silent Wings 3 PWM High-Speed, 140mm (1.68W/ 0.5A max.)
3x Silent Wings 3 PWM High-Speed, 120mm (1.92W/ 0.37A max.)

Would be good, if madscientist159 could comment on that topic.

Till now no problems.
Or maybe someone could look at the schematics? Sadly, I have no working optical drive.

388
Operating Systems and Porting / Re: [NEWS] Fedora 32 is released
« on: May 20, 2020, 01:30:39 pm »
The Kernel is the same no matter which Fedora version is in use.

389
Operating Systems and Porting / Re: [NEWS] Fedora 32 is released
« on: May 20, 2020, 11:36:27 am »
I don't know what your problem is, but the Kernel (Fedora 31) works. Thanks again to q66.

390
This is my combo. Even under full load, the computer is quieter than my NAS (DS214). My PowerMac Quad G5 was also louder than my POWER9 today. But I only have a Quadcore. But there is also a modification that makes the whole thing even quieter.

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