I've tried Linux 4.17-rc6 with Ubuntu 18.04 on Tyan S7002 and I am not even able see lightdm/gdm3 as system hangs when starting X. Having SR-IOV enabled or disabled makes no difference. Tested with AMD RX 460. When X is supposed to start the system hangs and only a rectangular region on the top left corner screen remains with console text messages from the boot process while the remaining of the screen is just black. I am unable to do anything with the keyboard, switching to console does not work, ctrl-alt-del also doesn't work. I've to do a cold reset. Regards, LuÃs On Fri, May 11, 2018 at 1:15 PM, LuÃs Mendes <luis.p.mendes at gmail.com> wrote: > Hi Michel, > > Just made a fresh Ubuntu 18.04 LTS install for armhf with ubuntu > default mesa, libdrm and libclc, with the same 4.16.7 kernel and it > runs fine with the OpenCL applications that cause the hang on x86_64. > So it is surely a kernel or mesa issue exclusive to x86_64, libraries > versions are the same on both systems now, as well as the kernel. > I have even tried amdgpu-pro-18.20 with ubuntu 18.04 on x86_64 and it > hangs just the same. > > Regards, > LuÃs > > On Mon, May 7, 2018 at 1:31 PM, LuÃs Mendes <luis.p.mendes at gmail.com> > wrote: > > Hi Michel, > > > > No, I haven't tried the exact same versions of Mesa, nor libclc, nor > > LLVM on x86, however on armhf I have been able to use several > > combinations of Linux kernel versions and mesa versions which are able > > to run the OpenCL kernels in question. I will try to see if the same > > happens with the exact same Ubuntu 18.04 LTS base installation on > > armhf, but won't be able to test it today. > > > > LuÃs > > > > On Mon, May 7, 2018 at 10:38 AM, Michel Dänzer <michel at daenzer.net> > wrote: > >> On 2018-05-05 01:15 AM, LuÃs Mendes wrote: > >>> > >>> - On another system with armhf 32 bits, 1GB ram, 512GB SSD, AMD RX 480 > >>> or AMD RX 550 > >>> with Ubuntu 17.10, vanilla kernel 4.16.7, mesa-18.0.2, > >>> libdrm-2.4.92-git, libclc-git at commit > >>> 3d994f2ff2cbb4531223fe2657144cb19f0c5328 (15/Nov/2017) > >>> > >>> The kernels work properly on the same AMD cards. > >> > >> Have you tried those exact same versions of the kernel, Mesa, libclc and > >> LLVM on x86? > >> > >> > >> -- > >> Earthling Michel Dänzer | > http://www.amd.com > >> Libre software enthusiast | Mesa and X developer > -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20180523/25f7340c/attachment-0001.html>
