5 ms·

These claims are blown out of proportion and/or simply untrue. Screen tearing: both Intel and AMD have hardware-backed "TearFree" buffering to prevent tearing.

by chmln 7y ago

These claims are blown out of proportion and/or simply untrue. Screen tearing: both Intel and AMD have hardware-backed "TearFree" buffering to prevent tearing. Bad performance: citation required - in my experience, Xorg is way faster. Touchscreen support - in most cases just works out of the box thanks to libinput. No HiDPI support for different scales per monitor - simply wrong - this is trivial with xrandr.

blibble 7y ago
I still find tearing to be problematic I have a machine with a supported Radeon card (open-source driver), another machine with a supported nvidia card (binary blob driver), and another two machines using different intel onboard graphics chips (open-source driver) the radeon and the intel (both drivers which work with it) have issues putting out a stable jitterless 60fps without tearing (with tearfree on, and various combinations of with/without compositing/glx/...)
- chmln 7y ago
  How did you test the fps? I'm using the intel driver as well, and it's definitely not perfect. But it's pretty close, at least for me - I get hardware-accelerated video decoding with VAAPI, no tearing, and excellent input latency (~3ms).
  - blibble 7y ago
    I've got a couple of videos I use that make the tearing/jitter obvious, e.g. https://www.youtube.com/watch?v=0RvIbVmCOxg https://www.youtube.com/watch?v=0RvIbVmCOxg (you can get a .mp4 too which eliminates the browser as a possible cause) sadly I can see the jitter/tearing, vs. on Windows where it's perfect (with 4k or higher frame rates it's far more obvious)
- kevin_thibedeau 7y ago
  That's your video driver's fault. Not X's.
curt15 7y ago
If you click and drag a window around in xorg, does the window stick perfectly to the cursor or is there still noticeable lag?
- chmln 7y ago
  I use a tiling wm (i3), so I can't exactly drag windows around, but I can drag-and-resize them. In my case, there is no lag. However, there is a tiny amount of stuttering since I don't use a compositor, but I can live with that.
  - yjftsjthsd-h 7y ago
    > I use a tiling wm (i3), so I can't exactly drag windows around, but I can drag-and-resize them Sure you can. Just pop the widow into floating mode; I think the default is meta-space.

by chmln 7y ago

blibble 7y ago

I still find tearing to be problematic I have a machine with a supported Radeon card (open-source driver), another machine with a supported nvidia card (binary blob driver), and another two machines using different intel onboard graphics chips (open-source driver) the radeon and the intel (both drivers which work with it) have issues putting out a stable jitterless 60fps without tearing (with tearfree on, and various combinations of with/without compositing/glx/...)

chmln 7y ago
How did you test the fps? I'm using the intel driver as well, and it's definitely not perfect. But it's pretty close, at least for me - I get hardware-accelerated video decoding with VAAPI, no tearing, and excellent input latency (~3ms).
- blibble 7y ago
  I've got a couple of videos I use that make the tearing/jitter obvious, e.g. https://www.youtube.com/watch?v=0RvIbVmCOxg https://www.youtube.com/watch?v=0RvIbVmCOxg (you can get a .mp4 too which eliminates the browser as a possible cause) sadly I can see the jitter/tearing, vs. on Windows where it's perfect (with 4k or higher frame rates it's far more obvious)
kevin_thibedeau 7y ago
That's your video driver's fault. Not X's.

curt15 7y ago

If you click and drag a window around in xorg, does the window stick perfectly to the cursor or is there still noticeable lag?

chmln 7y ago
I use a tiling wm (i3), so I can't exactly drag windows around, but I can drag-and-resize them. In my case, there is no lag. However, there is a tiny amount of stuttering since I don't use a compositor, but I can live with that.
- yjftsjthsd-h 7y ago
  > I use a tiling wm (i3), so I can't exactly drag windows around, but I can drag-and-resize them Sure you can. Just pop the widow into floating mode; I think the default is meta-space.