OK, so does that mean that 'UseDisplayDevice "None"' is still supported with GPUs that have display connections? If not, then how would one specify headless mode with those GPUs?
On 3/2/21 12:00 PM, Jason Edgecombe wrote: > NVidia Tesla's are designed as GPU compute cards and Graphics > accelerators. They literally don't have any VGA/DisplayPort/HDMI ports > on the back of the card. lspci shows them as a "3D Controller" instead > of a VGA display card. > > Sincerely, > Jason > --------------------------------------------------------------------------- > Jason Edgecombe | Linux Administrator > UNC Charlotte | Office of OneIT > 9201 University City Blvd. | Charlotte, NC 28223-0001 > Phone: 704-687-1943 <tel:704-687-1943> > [email protected] <mailto:[email protected]> | http://engr.uncc.edu | > Facebook > --------------------------------------------------------------------------- > If you are not the intended recipient of this transmission or a person > responsible for delivering it to the intended recipient, any > disclosure, copying, distribution, or other use of any of the > information in this transmission is strictly prohibited. If you have > received this transmission in error, please notify me immediately by > reply e-mail or by telephone at > 704-687-1943 <tel:704-687-1943>. Thank you. > > > On Tue, Mar 2, 2021 at 12:46 PM DRC <[email protected] > <mailto:[email protected]>> wrote: > > [*Caution*: Email from External Sender. Do not click or open links > or attachments unless you know this sender.] > > > 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] > <mailto:[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 > > <https://groups.google.com/d/msgid/virtualgl-users/cf378d92-6b5d-30d0-9ab6-8e927a6137ab%40virtualgl.org?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/CAAR6MGC-%3DVVQtWPoEMuAAC4NGptzm8b4jwPSkbPcsS9rmijYKA%40mail.gmail.com > <https://groups.google.com/d/msgid/virtualgl-users/CAAR6MGC-%3DVVQtWPoEMuAAC4NGptzm8b4jwPSkbPcsS9rmijYKA%40mail.gmail.com?utm_medium=email&utm_source=footer>. -- You received this message because you are subscribed to the Google Groups "VirtualGL User Discussion/Support" group. 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