I don't understand how the driver knows to treat the GPU as headless if you don't specify 'UseDisplayDevice "None"' in xorg.conf.
On 3/2/21 11:29 AM, qwofford wrote: > The headless mode works for all GPUs I've tested so far without > UseDisplayDevice "None", including V100's. I'm thinking the > "--use-display-device=None" breaks some subset of headless GPU/driver > combinations. So...beyond some Nvidia driver version, some GPU's will > break with this option. All GPU's I've tested work OK without this > option, at Nvidia driver 455.32.00. > > DRC, let me know if you want me to do some troubleshooting for you. > Happy to help the project where I can. I am removing this from option > from our xorg.conf deployment mechanism. If I get any complaints, > I'll dig in and let you know wht I find. > > On Tuesday, March 2, 2021 at 10:11:30 AM UTC-7 DRC wrote: > > What do they propose instead? Is headless operation no longer > supported with Tesla GPUs? > > On 3/2/21 11:03 AM, Youssef GHORBAL wrote: >> Hi, >> >> Last time I asked Nvidia about this very message they give me >> this feedback: >> >> "This is due to a change in our driver. And you are right, you >> need to remove the Option "UseDisplayDevice" "none" from the Xorg >> conf file. See release not >> here: >> https://docs.nvidia.com/datacenter/tesla/tesla-release-notes-440-3301/index.html >> (section >> 1.3 Known Issues / NoScanout Mode) >> As you pointed out this is harmless. Nevertheless, I am hoping >> this will be improved in a future release." >> >> Bascially, the error message is somehow misleading and has >> nothing to do with GRID technology at all. >> >> Youssef >> -------------------- >>> On 2 Mar 2021, at 17:42, qwofford <[email protected]> wrote: >>> >>> Hello, >>> >>> I'm using VirtualGL 2.6.2 with a Tesla V100 in headless mode, >>> and NVIDIA driver v455.32.00. It appears that my config file, as >>> generated by the Headless Nvidia mini How-To, is conflicting >>> with the V100 as configured. >>> >>> (EE) NVIDIA(GPU-0): UseDisplayDevice "None" is not supported >>> with GRID >>> (EE) NVIDIA(GPU-0): displayless >>> >>> Is this something you've seen before? Looking at how to disable >>> GRID vGPU support now, which I hope will solve the problem... >>> >>> Thanks, >>> Quincy >>> >>> -- >>> You received this message because you are subscribed to the >>> Google Groups "VirtualGL User Discussion/Support" group. >>> To unsubscribe from this group and stop receiving emails from >>> it, send an email to [email protected]. >>> To view this discussion on the web visit >>> >>> https://groups.google.com/d/msgid/virtualgl-users/f94a8abe-22fd-442c-95ab-da7d6b61cbbbn%40googlegroups.com >>> >>> <https://urldefense.com/v3/__https://groups.google.com/d/msgid/virtualgl-users/f94a8abe-22fd-442c-95ab-da7d6b61cbbbn*40googlegroups.com?utm_medium=email&utm_source=footer__;JQ!!JFdNOqOXpB6UZW0!-Bh5kXOukJMv6nOXNnur-Vsywv7tlZ8Oqhgzdy0xdiwCiv8-HocmPCOVoT1CU4t6mw6wm3JK$>. >> >> -- >> You received this message because you are subscribed to the >> Google Groups "VirtualGL User Discussion/Support" group. >> To unsubscribe from this group and stop receiving emails from it, >> send an email to [email protected]. >> To view this discussion on the web visit >> >> https://groups.google.com/d/msgid/virtualgl-users/E626C2EF-A528-443C-8246-3A8B03FD58E0%40pasteur.fr >> >> <https://groups.google.com/d/msgid/virtualgl-users/E626C2EF-A528-443C-8246-3A8B03FD58E0%40pasteur.fr?utm_medium=email&utm_source=footer>. > > -- > You received this message because you are subscribed to the Google > Groups "VirtualGL User Discussion/Support" group. > To unsubscribe from this group and stop receiving emails from it, send > an email to [email protected] > <mailto:[email protected]>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/virtualgl-users/16ede473-5b78-44ee-9248-22271bef10a9n%40googlegroups.com > <https://groups.google.com/d/msgid/virtualgl-users/16ede473-5b78-44ee-9248-22271bef10a9n%40googlegroups.com?utm_medium=email&utm_source=footer>. -- You received this message because you are subscribed to the Google Groups "VirtualGL User Discussion/Support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/virtualgl-users/cf378d92-6b5d-30d0-9ab6-8e927a6137ab%40virtualgl.org.
