<div dir="ltr"><div>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.</div><div>Having SR-IOV enabled or disabled makes no difference.</div><div>Tested with AMD RX 460. <br></div><div>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. <br></div><div><br></div><div><br></div><div>Regards,</div><div>Luís<br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, May 11, 2018 at 1:15 PM, Luís Mendes <span dir="ltr"><<a href="mailto:luis.p.mendes@gmail.com" target="_blank">luis.p.mendes@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Michel,<br>
<br>
Just made a fresh Ubuntu 18.04 LTS install for armhf with ubuntu<br>
default mesa, libdrm and libclc, with the same 4.16.7 kernel and it<br>
runs fine with the OpenCL applications that cause the hang on x86_64.<br>
So it is surely a kernel or mesa issue exclusive to x86_64, libraries<br>
versions are the same on both systems now, as well as the kernel.<br>
I have even tried amdgpu-pro-18.20 with ubuntu 18.04 on x86_64 and it<br>
hangs just the same.<br>
<br>
Regards,<br>
Luís<br>
<div class="HOEnZb"><div class="h5"><br>
On Mon, May 7, 2018 at 1:31 PM, Luís Mendes <<a href="mailto:luis.p.mendes@gmail.com">luis.p.mendes@gmail.com</a>> wrote:<br>
> Hi Michel,<br>
><br>
> No, I haven't tried the exact same versions of Mesa, nor libclc, nor<br>
> LLVM on x86, however on armhf I have been able to use several<br>
> combinations of Linux kernel versions and mesa versions which are able<br>
> to run the OpenCL kernels in question. I will try to see if the same<br>
> happens with the exact same Ubuntu 18.04 LTS base installation on<br>
> armhf, but won't be able to test it today.<br>
><br>
> Luís<br>
><br>
> On Mon, May 7, 2018 at 10:38 AM, Michel Dänzer <<a href="mailto:michel@daenzer.net">michel@daenzer.net</a>> wrote:<br>
>> On 2018-05-05 01:15 AM, Luís Mendes wrote:<br>
>>><br>
>>> - On another system with armhf 32 bits, 1GB ram, 512GB SSD, AMD RX 480<br>
>>> or AMD RX 550<br>
>>> with Ubuntu 17.10, vanilla kernel 4.16.7, mesa-18.0.2,<br>
>>> libdrm-2.4.92-git, libclc-git at commit<br>
>>> 3d994f2ff2cbb4531223fe2657144c<wbr>b19f0c5328 (15/Nov/2017)<br>
>>><br>
>>> The kernels work properly on the same AMD cards.<br>
>><br>
>> Have you tried those exact same versions of the kernel, Mesa, libclc and<br>
>> LLVM on x86?<br>
>><br>
>><br>
>> --<br>
>> Earthling Michel Dänzer | <a href="http://www.amd.com" rel="noreferrer" target="_blank">http://www.amd.com</a><br>
>> Libre software enthusiast | Mesa and X developer<br>
</div></div></blockquote></div><br></div>