| 21 Oct 2025 |
 K900 | It was honestly way overspecced for rendering given the super wide backend | 21:27:55 |
| K900 | (and that's why they went with wave32 on RDNA) | 21:28:09 |
 Luke | I originally picked it up for compute purposes actually - it was a great deal with awful software support for 16GiB of VRAM when it came out | 21:30:10 |
| Luke | Still quite capable on ROCm actually | 21:30:27 |
| Luke | I'm quite fond of it - I can't find info about DSC support though | 21:30:54 |
| K900 | Again, DSC is baseline for DP 1.4 | 21:31:35 |
| K900 | And Vega should have 1.4a | 21:31:42 |
 ElvishJerricco | (I guess, at least for amdgpu, /sys/kernel/debug/dri/0000:03:00.0/DP-1/dsc_clock_en indicates whether it's in use?) | 21:33:35 |
| Luke | https://web.archive.org/web/20210619070751/https://community.amd.com/t5/graphics/radeon-vii-lg-27gn950b/td-p/460639 | 21:40:45 |
| Luke | Seems not | 21:40:53 |
| Luke | I wonder if HDMI can handle it? | 21:41:40 |
| K900 | Definitely not without DSC | 21:41:47 |
| K900 | Probably not at all tbh | 21:41:50 |
| K900 | But that is VERY STRANGE | 21:41:57 |
| K900 | The hardware should definitely be able to do it | 21:42:02 |
| Luke | I thought DSC was DisplayPort only tech? I could be very wrong | 21:42:13 |
| K900 | Also HDMI 2.1 | 21:42:30 |
| Luke | It was a weird GPU that they nearly immediately dropped support for | 21:42:41 |
| Luke | lmao | 21:42:47 |
| Luke | It very well might be able to do it, and just doesn't have firmware for it | 21:43:04 |
| K900 | Oh god wait | 21:44:32 |
| K900 | Desktop Vega doesn't have DCN | 21:44:36 |
| K900 | Yeah OK this is a mess | 21:44:40 |
| Luke | lmao | 21:44:43 |
| K900 | Mobile Vega has a significantly newer display controller IP | 21:44:50 |
| Luke | But still, why doesn't the monitor advertise these speeds with the compression disabled?! What a mess | 21:45:34 |
| K900 | Because it can't | 21:45:51 |
| Luke | No I mean the 120Hz speed | 21:46:03 |
| Luke | Clearly it can do that, it is right now | 21:46:12 |
| K900 | Probably because it doesn't really make sense for them to advertise non-DSC modes | 21:46:16 |
