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Topics - isengaara

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Applications and Porting / Porting VR games to the Talos II
« on: May 05, 2024, 02:08:56 pm »
Today I did a talk at libreplanet: Gaming on a Talos II: How I avoid using Steam
A gameplay video is here.

My VR setup includes four ICE40 FPGAs, the first one is the Talos II System FPGA.  The two controllers KN0 and KN1 and the headset T20 use their own bigger FPGAs for lighthouse tracking. I plan to design my own hardware that tracks using lighthouse.

There is also a forum thread on the Trisquel site.

Legacy POWER Hardware / Dolphin Emulator banned from Steam
« on: May 31, 2023, 10:36:23 am »
When I yesterday saw that Dolphin was banned from Steam due to a DMCA takedown request, I decided to port the Dolphin Emulator to the POWER9. A few weeks ago I had a look at the the IPL replacement modchip called picoboot for the GameCube. Steam never ran on on any IBM CPU, so I loose nothing if Steam does not my Talos II.

Firmware / ASPEED 2500 VGA standby mode
« on: November 12, 2022, 04:35:08 am »
When I lock the screen on my Talos II, VGA does not go off, it just shows a black screen. Is there a way to switch VGA completely off in this case and enable VGA again, when I press any key?

Applications and Porting / Displaylink on OpenPOWER
« on: May 13, 2022, 11:48:05 am »
Displaylink recently released the Extensible Virtual Display Interface, a linux kernel module that adds a virtual graphics output. It is released under the GNU (L)GPL and used by their DisplayLink Manager. When I was reading the POWER9 Hardware Compatibility List, my assumption that USB3.0 DisplayLink devices do not work with POWER9 was correct. The source code of the DisplayLink Manager application is not published, and there are no binaries for POWER9 either. Since the kernel module is free software that comes with good documentation, I began writing my own replacement for the DisplayLink Manager, which allows me to use the built-in screen of a ThinkPad X200 as a second display, and also indirectly connect a third Monitor via HDMI.

Applications and Porting / Porting Godot 4 to POWER9 and the Libre-SOC.
« on: September 19, 2021, 09:41:03 am »
I tried to compile Godot 4 on my Talos II, it failed because the Talos II does not not use an Intel CPU. The embree library currently only runs on latest Intel CPUs and the Apple M1 afaik.

Talos II / Trying out GUIX on my Talos II
« on: April 10, 2021, 02:36:48 am »
I recently saw a post on the GUIX mailing list "Please review blog post draft: powerpc64le-linux support"

> I've been using the Free Software firmware replacement for the NIC
> since a while now and it's working great:

So I compiled the firmware and installed it on my Talos II. When GUIX for powerpc64le-linux comes out, I will try out.

Operating Systems and Porting / Guix now running on the Talos II
« on: November 21, 2020, 06:49:01 am »
I've started porting GNU Guix to modern PowerPC hardware. Currently it runs on my Talos II in BigEndian mode. BigEndian because the 32 bit boostrap binaries already run on older PowerPC hardware which was usually operated in BigEndian Mode. The video for the port is here. The discussion will happen tomorrow.

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