Changing Graphics board from HD 5450 to R7 240

AmigaOne X5000 platform specific issues related to Linux only.
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Roland
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Changing Graphics board from HD 5450 to R7 240

Post by Roland »

I changed the graphics board of my X5000 from a HD 5450 to R7 140, with the consequence that I cannot get anymore desktop with any distro I tested (Ubuntu, Fienix, MintPPC). There is only an empty screen, which looks like pointillistic art.

I cannot swap back to HD 5450 as I do not have it here. Is there any way out of this impasse..?
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Hypex
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Re: Changing Graphics board from HD 5450 to R7 240

Post by Hypex »

Try this for Fienix, the GPU bandage:
https://fienixppc.blogspot.com/p/troubleshooting.html

Another discussion:
viewtopic.php?p=50926#p50926

When I was having this kinda trouble:
viewtopic.php?p=50380#p50380

I jumped from a 5450 to an R7 250. It works on my X1000. An older Ubuntu 12.04 and a newer Fienix. I also have an Ubuntu 14.04 install but don't recall getting it to work.
Roland
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Re: Changing Graphics board from HD 5450 to R7 240

Post by Roland »

@Hypex

Thanks for the tips! I will check them... I already found out that an ancient Ubuntu 16.04 installation is directly bootable, and from there I was able to edit the etc/X11/xorg.config of Fedora27, and then further Ubuntu 16.04.7. I changed the line "radeon' to 'fbdev', and with that change they became bootable. But copying the xorg.conf from Ubuntu to Fienix/MintPPC did not solve the problem with those distros.
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Roland
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Re: Changing Graphics board from HD 5450 to R7 240

Post by Roland »

Hypex wrote: Tue Jun 08, 2021 6:21 pm Try this for Fienix, the GPU bandage:
https://fienixppc.blogspot.com/p/troubleshooting.html
The GPU bandage trick was not able to correct the problem with Fienix. The desktop seemed first to load normally, but ended to a black screen with just a pointer. I had to remove 'compton' to get a normal desktop.

For MintPPC it was enough to copy the 'GPU bandage' xorg.config from Fienix.

What settings should be used in VLC to get the optimal performance with R7 240? The settings for HD 5450 did not naturally work.
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Hypex
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Re: Changing Graphics board from HD 5450 to R7 240

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Roland wrote: Wed Jun 09, 2021 9:42 am What settings should be used in VLC to get the optimal performance with R7 240? The settings for HD 5450 did not naturally work.
I can't say exactly since I haven't used in that set up. But I suspect you may need set it for software rendering somehow. Which isn't the best configuration if it uses hardware acceleration.

I played around with my Ubuntu 14.04 but couldn't get it to budge. It's really messed up. I found it was missing the radeonsi driver. And found installing linux-firmware-nonfree helped. At least apt install was working. Next time I booted it opened up a log in straight away. Unfortunately I couldn't log in. It kept looping back to the log in screen. I've only seen this when the disk is low on space and it's really confusing when that happens! But I checked and it has space, 15% of 10GB. :-?
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