Re: amdgpu 4k@120Hz / HDMI 2.1

2025-01-10 Thread Mischa Baars
On Thu, Jan 9, 2025 at 4:08 PM Armin Wolf wrote: > Sadly the HDMI forum only provides the HDMI specification under a special > license which > prohibits implementing it in open source drivers. > > Since membership inside the HDMI forum costs 15000$ annually, i suspect that > the HDMI forum > is

Re: amdgpu 4k@120Hz / HDMI 2.1

2025-01-10 Thread Mischa Baars
On Thu, Jan 9, 2025 at 3:57 PM Michel Dänzer wrote: > That's much lower level than OpenGL. OpenGL implementations can and do > internally use page flipping under the right circumstances, it cannot be > enforced via OpenGL / GLX / EGL APIs though, it's an implementation detail. It is indeed low

Re: amdgpu 4k@120Hz / HDMI 2.1

2025-01-09 Thread Mischa Baars
On Mon, Jan 6, 2025 at 4:41 PM Michel Dänzer wrote: > Yeah, that's not how double-buffering works in GL. The draw buffer is always GL_BACK, SwapBuffers doesn't affect that (it just may internally change which actual buffer GL_BACK refers to). > > I don't see more context about the issue you're in

Re: amdgpu 4k@120Hz / HDMI 2.1

2025-01-09 Thread Mischa Baars
people that design the cables? Because that is what it sounds like. Why does Linux stay behind? On Mon, Jan 6, 2025 at 4:41 PM Michel Dänzer wrote: > > On 2024-12-31 13:42, Mischa Baars wrote: > > > > In the meantime I also checked the framerate synchronization through > > g

Re: amdgpu 4k@120Hz / HDMI 2.1

2024-12-31 Thread Mischa Baars
Using GDK_BACKEND=x11 I do get a double buffered context, but the default buffer does not alternate between GL_FRONT and GL_BACK. Enjoy new year's eve! Regards, Mischa. On Wed, Oct 23, 2024 at 6:16 PM Mario Limonciello wrote: > > On 10/23/2024 11:12, Mischa Baars wrote: > >> I certa