14:54 <MortimerHoughton> I noticed an interesting behavior yesterday. Whenever I resume from swayidle, river changes the size of the main area from where it was prior to the screen output being turned off

14:56 <leon-p> the layout generator likely stores that value per output. removing the output removes the internal representation of the output from the layout generator and as such the value

14:56 <leon-p> it's possible to keep those values around in a layout generator, but I personally wouldn't

14:57 <MortimerHoughton> strangely, it doesn't revert to the default setting I created

14:58 <MortimerHoughton> I think it is reverting instead to the defaults that come with river and rivertile

15:44 <mvnx> I had a chance to try River on my host today (not QEMU VM guest) and have the same issue - EGL_EXT_platform_base not supported.

15:46 <mvnx> The host is NixOS, primarily 22.11 but I'm using nixos-unstable for river 0.2.4. I am using greetd and a `start-river` wrapper script that exports LIBSEAT_BACKEND="logind" among others before launching river via dbus-launch.

15:56 <ifreund> mvnx: that error means that your userland graphics drivers (mesa) don't support the required features or are missing

15:56 <ifreund> I dont know what package would be required on nixos, i've seen it split into a "mesa-dri" package before

15:57 <mvnx> Thanks - I'll have a look

16:11 <mvnx> Forgive my ignorance but is mesa used in combination with intel-media-driver et al or as a replacement?

16:12 <plumeus> for hardware.opengl.extraPackages, I have intel-media-driver and intel-compute-runtime.

16:12 <plumeus> The compute runtime shouldn't matter unless you want to mess around with OpenCL

16:13 <plumeus> this is on a 11th gen Intel CPU (I forget the gen of the GPU or how to check it quickly)

16:15 <mvnx> I believe I'm on 5th gen

16:15 <plumeus> oh

16:18 <plumeus> Seems like Broadwell (gen 5) is the first processor to have intel-media-driver support

16:23 <mvnx> Awesome, I got the classic #002b36 background we all know and love. Around three weeks went into reaching this milestone. I'm grateful for your your help.

16:40 <kennylevinsen> mvnx: that libseat env var is unnecessary

17:04 <mvnx> tight

17:22 <mvnx> So now I'm trying the same thing in a QEMU VM guest but getting "DRI2: failed to create screen", a EGL_NOT_INITIALIZED error. Any idea what could lead to that?