| 19 May 2025 |
 matthewcroughan | why would it help? | 20:33:37 |
| matthewcroughan | Is the issue even coming from alvr? | 20:33:47 |
| matthewcroughan | I can try, but would like to figure out whether alvr needs to be built with nvidia options or something | 20:34:14 |
 Makuru 📞(WAAF / 4850) | What exactly is your problem? | 20:38:51 |
| matthewcroughan | The same as documented in that issue. When ALVR begins streaming SteamVR, it only works when using CPU encoding | 21:04:02 |
| matthewcroughan | So yeah I guess that does isolate it actually to the cuda/nvenc calls from ALVR | 21:04:20 |
| matthewcroughan | this only happens when you apply the vrmonitor.sh fix from https://github.com/alvr-org/ALVR/wiki/Linux-Troubleshooting#steamvr | 21:05:10 |
| matthewcroughan | you get a black screen before that | 21:05:25 |
| Makuru 📞(WAAF / 4850) | Do you have multiple GPUs? Well that shouldnt be the issue, tho. | 21:10:13 |
| Makuru 📞(WAAF / 4850) | Maybe wayland? | 21:10:17 |
|  ian joined the room. | 21:14:10 |
| matthewcroughan | Hmm I didn't think so, does the ryzen 5600 have a built in gpu? | 21:16:20 |
| Makuru 📞(WAAF / 4850) | Maybe, is it the 5600g ? | 21:18:06 |
| matthewcroughan | ouch.. that would suck, I will have to check next time I'm with the machine | 21:18:24 |
| matthewcroughan | didn't suspect it since absolutely every other piece of software worked as expected | 21:18:43 |
| matthewcroughan | like monado/wivrn | 21:18:47 |
| matthewcroughan | and perfectly, may I add | 21:18:53 |
| Makuru 📞(WAAF / 4850) | The fix is: DRI_PRIME=1 or 0 | 21:19:05 |
| matthewcroughan | what lib reads that var? | 21:21:23 |
| Makuru 📞(WAAF / 4850) | It tells the kernel, i think to use GPU 0 or 1. | 21:23:24 |
| matthewcroughan | The kernel? | 21:23:34 |
| matthewcroughan | Like, Linux? | 21:23:37 |
| matthewcroughan | I would have thought only the processes would care about this var | 21:23:48 |
| Makuru 📞(WAAF / 4850) | Yeah, I dont know, it just magic for me. | 21:24:23 |
| matthewcroughan | yeah fair, that's how most of that is when interacting with steam | 21:24:39 |
| matthewcroughan | * yeah fair, that's how most of that is when interacting with steam and graphics libs | 21:24:48 |
| ian left the room. | 21:26:40 |
 olivia | mesa reads DRI_PRIME, not the kernel | 22:56:33 |
| olivia | https://docs.mesa3d.org/envvars.html#envvar-DRI_PRIME | 22:56:54 |
| 20 May 2025 |
| matthewcroughan | What annoys me is the lack of name spacing on magic vars | 13:06:38 |
