On Wed, May 29, 2019 at 10:52:53AM +1000, Jonathan Gray wrote: > On Tue, May 28, 2019 at 09:58:58AM -0700, Chris Cappuccio wrote: > > David Anthony [d...@silentsystems.org] wrote: > > > All, > > > > > > The Lenovo release of T*95 series laptops with AMD Ryzen CPU appears > > > imminent. > > > > > > Would these be poor choices for OpenBSD? Are there any anticipated > > > ???gotchas??? that I should be aware of? Any thoughts would be greatly > > > appreciated. > > > > > > > Chances are it will work very well. > > I disagree. > > > > > First, less flaws were identified with AMD's implementation of speculative > > execution. That means that there are less mitigations to slow down the > > system. > > Whether there are unidentified flaws, that's another issue.. > > > > Second, the amdgpu driver was just imported to OpenBSD 6.5-current. That > > means you'll have graphics support. Combined with the recent improvements > > to xhci and wi-fi driver improvments (well, mostly intel), support for > > modern > > laptops has never been better. > > There is no support for newer Intel wireless like the 9260 the T495 has. > > The version of amdgpu in the tree does not include support for > picasso APUs (Ryzen 3xxx) https://en.wikichip.org/wiki/amd/cores/picasso > or whatever raven2 works out to be. > > It is also not enabled by default just yet. > > If anyone wants to have a Ryzen thinkpad work in the short term the > current A series A285/A485 and similar generation E series require less > work. Suspend/resume doesn't work right on them currently. > They mostly ship with RTL8822BE wireless which there is no support for > but this can be replaced with an Intel 8265 which is in the bios > whitelist and is supported by iwm(4). >
The E495s I ordered have the Picasso APU and the Intel 9260 wifi. I was just running 6.5-release. When I get a minute this afternoon, I will try the latest snapshot and see if I can get video working. I'll send the dmesg to dm...@openbsd.org.
