* [Intel-gfx] Does the intel driver support faking a connected monitor? @ 2020-10-29 12:32 Paul Gardiner 2020-11-17 14:52 ` Jani Nikula 0 siblings, 1 reply; 9+ messages in thread From: Paul Gardiner @ 2020-10-29 12:32 UTC (permalink / raw) To: intel-gfx I use an open source DVR called MythTV. I've just swapped from using nvidia graphics to intel graphics. Generally it's working great, but I've run into one thing I used to do with the old system that I cannot find out how to achieve with the new. MythTV doesn't currently entirely handle starting without a TV connected. With nvidia graphics I could specify, within the X config, the "ConnectMonitor" and "CustomEDID" options to fool MythTV into thinking there was a TV. With intel graphics I can load EDID, but so far I haven't discovered an equivalent of the "ConnectedMonitor" option. _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [Intel-gfx] Does the intel driver support faking a connected monitor? 2020-10-29 12:32 [Intel-gfx] Does the intel driver support faking a connected monitor? Paul Gardiner @ 2020-11-17 14:52 ` Jani Nikula 2020-11-21 10:52 ` Paul Gardiner 0 siblings, 1 reply; 9+ messages in thread From: Jani Nikula @ 2020-11-17 14:52 UTC (permalink / raw) To: Paul Gardiner, intel-gfx On Thu, 29 Oct 2020, Paul Gardiner <lists@glidos.net> wrote: > I use an open source DVR called MythTV. I've just swapped from using > nvidia graphics to intel graphics. Generally it's working great, but > I've run into one thing I used to do with the old system that I cannot > find out how to achieve with the new. > > MythTV doesn't currently entirely handle starting without a TV > connected. With nvidia graphics I could specify, within the X config, > the "ConnectMonitor" and "CustomEDID" options to fool MythTV into > thinking there was a TV. With intel graphics I can load EDID, but so far > I haven't discovered an equivalent of the "ConnectedMonitor" option. Sorry for the delay, I seem to have missed this. Please try a kernel command-line parameter to force enable the connector. video=TV-1:e Assuming the connector name is "TV-1"; replace with whatever you have. BR, Jani. -- Jani Nikula, Intel Open Source Graphics Center _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [Intel-gfx] Does the intel driver support faking a connected monitor? 2020-11-17 14:52 ` Jani Nikula @ 2020-11-21 10:52 ` Paul Gardiner 2020-11-23 16:19 ` Jani Nikula 0 siblings, 1 reply; 9+ messages in thread From: Paul Gardiner @ 2020-11-21 10:52 UTC (permalink / raw) To: Jani Nikula, intel-gfx On 17/11/2020 14:52, Jani Nikula wrote: > On Thu, 29 Oct 2020, Paul Gardiner <lists@glidos.net> wrote: >> I use an open source DVR called MythTV. I've just swapped from using >> nvidia graphics to intel graphics. Generally it's working great, but >> I've run into one thing I used to do with the old system that I cannot >> find out how to achieve with the new. >> >> MythTV doesn't currently entirely handle starting without a TV >> connected. With nvidia graphics I could specify, within the X config, >> the "ConnectMonitor" and "CustomEDID" options to fool MythTV into >> thinking there was a TV. With intel graphics I can load EDID, but so far >> I haven't discovered an equivalent of the "ConnectedMonitor" option. > > Sorry for the delay, I seem to have missed this. > > Please try a kernel command-line parameter to force enable the > connector. > > video=TV-1:e > > Assuming the connector name is "TV-1"; replace with whatever you have. Thanks for the reply. I gave that a try, in my case "video=HDMI1:e", but saw no difference. That's KMS, right? Is there anything I might have failed to install or enable that KMS relies on? Are there any logs I should monitor? _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [Intel-gfx] Does the intel driver support faking a connected monitor? 2020-11-21 10:52 ` Paul Gardiner @ 2020-11-23 16:19 ` Jani Nikula 2020-11-24 15:03 ` Paul Gardiner 0 siblings, 1 reply; 9+ messages in thread From: Jani Nikula @ 2020-11-23 16:19 UTC (permalink / raw) To: Paul Gardiner, intel-gfx On Sat, 21 Nov 2020, Paul Gardiner <lists@glidos.net> wrote: > On 17/11/2020 14:52, Jani Nikula wrote: >> On Thu, 29 Oct 2020, Paul Gardiner <lists@glidos.net> wrote: >>> I use an open source DVR called MythTV. I've just swapped from using >>> nvidia graphics to intel graphics. Generally it's working great, but >>> I've run into one thing I used to do with the old system that I cannot >>> find out how to achieve with the new. >>> >>> MythTV doesn't currently entirely handle starting without a TV >>> connected. With nvidia graphics I could specify, within the X config, >>> the "ConnectMonitor" and "CustomEDID" options to fool MythTV into >>> thinking there was a TV. With intel graphics I can load EDID, but so far >>> I haven't discovered an equivalent of the "ConnectedMonitor" option. >> >> Sorry for the delay, I seem to have missed this. >> >> Please try a kernel command-line parameter to force enable the >> connector. >> >> video=TV-1:e >> >> Assuming the connector name is "TV-1"; replace with whatever you have. > > > Thanks for the reply. I gave that a try, in my case "video=HDMI1:e", but > saw no difference. That's KMS, right? Is there anything I might have > failed to install or enable that KMS relies on? Are there any logs I > should monitor? I think it should probably be HDMI-1 with the hyphen; is that a typo above or in the command line you used? BR, Jani. -- Jani Nikula, Intel Open Source Graphics Center _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [Intel-gfx] Does the intel driver support faking a connected monitor? 2020-11-23 16:19 ` Jani Nikula @ 2020-11-24 15:03 ` Paul Gardiner 2020-12-04 11:22 ` Paul Gardiner 0 siblings, 1 reply; 9+ messages in thread From: Paul Gardiner @ 2020-11-24 15:03 UTC (permalink / raw) To: Jani Nikula, intel-gfx On 23/11/2020 16:19, Jani Nikula wrote: > On Sat, 21 Nov 2020, Paul Gardiner <lists@glidos.net> wrote: >> On 17/11/2020 14:52, Jani Nikula wrote: >>> On Thu, 29 Oct 2020, Paul Gardiner <lists@glidos.net> wrote: >>>> I use an open source DVR called MythTV. I've just swapped from using >>>> nvidia graphics to intel graphics. Generally it's working great, but >>>> I've run into one thing I used to do with the old system that I cannot >>>> find out how to achieve with the new. >>>> >>>> MythTV doesn't currently entirely handle starting without a TV >>>> connected. With nvidia graphics I could specify, within the X config, >>>> the "ConnectMonitor" and "CustomEDID" options to fool MythTV into >>>> thinking there was a TV. With intel graphics I can load EDID, but so far >>>> I haven't discovered an equivalent of the "ConnectedMonitor" option. >>> >>> Sorry for the delay, I seem to have missed this. >>> >>> Please try a kernel command-line parameter to force enable the >>> connector. >>> >>> video=TV-1:e >>> >>> Assuming the connector name is "TV-1"; replace with whatever you have. >> >> >> Thanks for the reply. I gave that a try, in my case "video=HDMI1:e", but >> saw no difference. That's KMS, right? Is there anything I might have >> failed to install or enable that KMS relies on? Are there any logs I >> should monitor? > > I think it should probably be HDMI-1 with the hyphen; is that a typo > above or in the command line you used? Thanks for the continued help. I tried "video=HDMI1:e" because my Xorg log listed outputs HDMI1, HDMI2, DP1 and VIRTUAL1. I've now tried "video=HDMI-1:e", but still no luck. _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [Intel-gfx] Does the intel driver support faking a connected monitor? 2020-11-24 15:03 ` Paul Gardiner @ 2020-12-04 11:22 ` Paul Gardiner 2020-12-09 10:19 ` Jani Nikula 0 siblings, 1 reply; 9+ messages in thread From: Paul Gardiner @ 2020-12-04 11:22 UTC (permalink / raw) To: Jani Nikula, intel-gfx On 24/11/2020 15:03, Paul Gardiner wrote: > On 23/11/2020 16:19, Jani Nikula wrote: >> On Sat, 21 Nov 2020, Paul Gardiner <lists@glidos.net> wrote: >>> On 17/11/2020 14:52, Jani Nikula wrote: >>>> On Thu, 29 Oct 2020, Paul Gardiner <lists@glidos.net> wrote: >>>>> I use an open source DVR called MythTV. I've just swapped from using >>>>> nvidia graphics to intel graphics. Generally it's working great, but >>>>> I've run into one thing I used to do with the old system that I cannot >>>>> find out how to achieve with the new. >>>>> >>>>> MythTV doesn't currently entirely handle starting without a TV >>>>> connected. With nvidia graphics I could specify, within the X config, >>>>> the "ConnectMonitor" and "CustomEDID" options to fool MythTV into >>>>> thinking there was a TV. With intel graphics I can load EDID, but >>>>> so far >>>>> I haven't discovered an equivalent of the "ConnectedMonitor" option. >>>> >>>> Sorry for the delay, I seem to have missed this. >>>> >>>> Please try a kernel command-line parameter to force enable the >>>> connector. >>>> >>>> video=TV-1:e >>>> >>>> Assuming the connector name is "TV-1"; replace with whatever you have. >>> >>> >>> Thanks for the reply. I gave that a try, in my case "video=HDMI1:e", but >>> saw no difference. That's KMS, right? Is there anything I might have >>> failed to install or enable that KMS relies on? Are there any logs I >>> should monitor? >> >> I think it should probably be HDMI-1 with the hyphen; is that a typo >> above or in the command line you used? > > Thanks for the continued help. I tried "video=HDMI1:e" because my Xorg > log listed outputs HDMI1, HDMI2, DP1 and VIRTUAL1. I've now tried > "video=HDMI-1:e", but still no luck. Not wishing to hassle you, but before I give up, any further thoughts on this? I have a solution at least, which is to use a EDID emulator, so it's no great inconvenience how it is. Cheers, Paul. _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [Intel-gfx] Does the intel driver support faking a connected monitor? 2020-12-04 11:22 ` Paul Gardiner @ 2020-12-09 10:19 ` Jani Nikula 2020-12-20 10:31 ` Paul Gardiner 0 siblings, 1 reply; 9+ messages in thread From: Jani Nikula @ 2020-12-09 10:19 UTC (permalink / raw) To: Paul Gardiner, intel-gfx On Fri, 04 Dec 2020, Paul Gardiner <lists@glidos.net> wrote: > On 24/11/2020 15:03, Paul Gardiner wrote: >> On 23/11/2020 16:19, Jani Nikula wrote: >>> On Sat, 21 Nov 2020, Paul Gardiner <lists@glidos.net> wrote: >>>> On 17/11/2020 14:52, Jani Nikula wrote: >>>>> On Thu, 29 Oct 2020, Paul Gardiner <lists@glidos.net> wrote: >>>>>> I use an open source DVR called MythTV. I've just swapped from using >>>>>> nvidia graphics to intel graphics. Generally it's working great, but >>>>>> I've run into one thing I used to do with the old system that I cannot >>>>>> find out how to achieve with the new. >>>>>> >>>>>> MythTV doesn't currently entirely handle starting without a TV >>>>>> connected. With nvidia graphics I could specify, within the X config, >>>>>> the "ConnectMonitor" and "CustomEDID" options to fool MythTV into >>>>>> thinking there was a TV. With intel graphics I can load EDID, but >>>>>> so far >>>>>> I haven't discovered an equivalent of the "ConnectedMonitor" option. >>>>> >>>>> Sorry for the delay, I seem to have missed this. >>>>> >>>>> Please try a kernel command-line parameter to force enable the >>>>> connector. >>>>> >>>>> video=TV-1:e >>>>> >>>>> Assuming the connector name is "TV-1"; replace with whatever you have. >>>> >>>> >>>> Thanks for the reply. I gave that a try, in my case "video=HDMI1:e", but >>>> saw no difference. That's KMS, right? Is there anything I might have >>>> failed to install or enable that KMS relies on? Are there any logs I >>>> should monitor? >>> >>> I think it should probably be HDMI-1 with the hyphen; is that a typo >>> above or in the command line you used? >> >> Thanks for the continued help. I tried "video=HDMI1:e" because my Xorg >> log listed outputs HDMI1, HDMI2, DP1 and VIRTUAL1. I've now tried >> "video=HDMI-1:e", but still no luck. > > Not wishing to hassle you, but before I give up, any further thoughts on > this? I have a solution at least, which is to use a EDID emulator, so > it's no great inconvenience how it is. This should work. ISTR it's been used before by MythTV users. (I don't know what you refer to with EDID emulator.) Please file a bug over at [1]. Add drm.debug=14 module parameter, and attach full dmesg from boot to reproducing the problem in the bug. BR, Jani. [1] https://gitlab.freedesktop.org/drm/intel/-/issues/new -- Jani Nikula, Intel Open Source Graphics Center _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [Intel-gfx] Does the intel driver support faking a connected monitor? 2020-12-09 10:19 ` Jani Nikula @ 2020-12-20 10:31 ` Paul Gardiner 2020-12-21 14:04 ` Jani Nikula 0 siblings, 1 reply; 9+ messages in thread From: Paul Gardiner @ 2020-12-20 10:31 UTC (permalink / raw) To: Jani Nikula, intel-gfx On 09/12/2020 10:19, Jani Nikula wrote: > On Fri, 04 Dec 2020, Paul Gardiner <lists@glidos.net> wrote: >> On 24/11/2020 15:03, Paul Gardiner wrote: >>> On 23/11/2020 16:19, Jani Nikula wrote: >>>> On Sat, 21 Nov 2020, Paul Gardiner <lists@glidos.net> wrote: >>>>> On 17/11/2020 14:52, Jani Nikula wrote: >>>>>> On Thu, 29 Oct 2020, Paul Gardiner <lists@glidos.net> wrote: >>>>>>> I use an open source DVR called MythTV. I've just swapped from using >>>>>>> nvidia graphics to intel graphics. Generally it's working great, but >>>>>>> I've run into one thing I used to do with the old system that I cannot >>>>>>> find out how to achieve with the new. >>>>>>> >>>>>>> MythTV doesn't currently entirely handle starting without a TV >>>>>>> connected. With nvidia graphics I could specify, within the X config, >>>>>>> the "ConnectMonitor" and "CustomEDID" options to fool MythTV into >>>>>>> thinking there was a TV. With intel graphics I can load EDID, but >>>>>>> so far >>>>>>> I haven't discovered an equivalent of the "ConnectedMonitor" option. >>>>>> >>>>>> Sorry for the delay, I seem to have missed this. >>>>>> >>>>>> Please try a kernel command-line parameter to force enable the >>>>>> connector. >>>>>> >>>>>> video=TV-1:e >>>>>> >>>>>> Assuming the connector name is "TV-1"; replace with whatever you have. >>>>> >>>>> >>>>> Thanks for the reply. I gave that a try, in my case "video=HDMI1:e", but >>>>> saw no difference. That's KMS, right? Is there anything I might have >>>>> failed to install or enable that KMS relies on? Are there any logs I >>>>> should monitor? >>>> >>>> I think it should probably be HDMI-1 with the hyphen; is that a typo >>>> above or in the command line you used? >>> >>> Thanks for the continued help. I tried "video=HDMI1:e" because my Xorg >>> log listed outputs HDMI1, HDMI2, DP1 and VIRTUAL1. I've now tried >>> "video=HDMI-1:e", but still no luck. >> >> Not wishing to hassle you, but before I give up, any further thoughts on >> this? I have a solution at least, which is to use a EDID emulator, so >> it's no great inconvenience how it is. > > This should work. ISTR it's been used before by MythTV users. (I don't > know what you refer to with EDID emulator.) > > Please file a bug over at [1]. Add drm.debug=14 module parameter, and > attach full dmesg from boot to reproducing the problem in the bug. > > BR, > Jani. > > > [1] https://gitlab.freedesktop.org/drm/intel/-/issues/new The debug output was sufficient to track down the problem. It turned out that the connection was called HDMI-A-1. When I used that name your previous suggestion worked. To get exactly the behaviour I wanted I needed to also load EDID. This is the extra boot command string I'm using: drm.edid_firmware=HDMI-A-1:edid/marantz_edid.bin video=HDMI-A-1:D For that to work I also had to ensure the referenced edid file was in my initramfs. Thanks again for the help. By the way, an EDID emulator is a small USB-stick-sized device that sits in between computer and monitor and acts like a monitor when the actual monitor is off. _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [Intel-gfx] Does the intel driver support faking a connected monitor? 2020-12-20 10:31 ` Paul Gardiner @ 2020-12-21 14:04 ` Jani Nikula 0 siblings, 0 replies; 9+ messages in thread From: Jani Nikula @ 2020-12-21 14:04 UTC (permalink / raw) To: Paul Gardiner, intel-gfx On Sun, 20 Dec 2020, Paul Gardiner <lists@glidos.net> wrote: > The debug output was sufficient to track down the problem. It turned out > that the connection was called HDMI-A-1. When I used that name your > previous suggestion worked. To get exactly the behaviour I wanted I > needed to also load EDID. This is the extra boot command string I'm using: > > drm.edid_firmware=HDMI-A-1:edid/marantz_edid.bin video=HDMI-A-1:D > > > For that to work I also had to ensure the referenced edid file was in my > initramfs. > > Thanks again for the help. I'm glad you figured it out, and thanks for letting us know! > By the way, an EDID emulator is a small USB-stick-sized device that sits > in between computer and monitor and acts like a monitor when the actual > monitor is off. Ah, thanks for the info. BR, Jani. -- Jani Nikula, Intel Open Source Graphics Center _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2020-12-21 14:07 UTC | newest] Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2020-10-29 12:32 [Intel-gfx] Does the intel driver support faking a connected monitor? Paul Gardiner 2020-11-17 14:52 ` Jani Nikula 2020-11-21 10:52 ` Paul Gardiner 2020-11-23 16:19 ` Jani Nikula 2020-11-24 15:03 ` Paul Gardiner 2020-12-04 11:22 ` Paul Gardiner 2020-12-09 10:19 ` Jani Nikula 2020-12-20 10:31 ` Paul Gardiner 2020-12-21 14:04 ` Jani Nikula
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.