Hello, On Tuesday, 09 April 2019 at 16:44, Hans de Goede wrote: > Hi, > > On 09-04-19 14:05, Patrik Jakobsson wrote: > > On Tue, Apr 9, 2019 at 12:20 PM Hans de Goede <hdego...@redhat.com> wrote: > > > > > > Hi, > > > > > > On 09-04-19 11:47, Patrik Jakobsson wrote: > > > > On Tue, Apr 9, 2019 at 8:51 AM Hans de Goede <hdego...@redhat.com> > > > > wrote: > > > > > > > > > > Some CedarView VBT-s claim that there is a LVDS panel, while there is > > > > > none. > > > > > Specifically this happens on the Thecus N2800 / N5550 NAS models. > > > > > > > > > > This commit adds a LVDS blacklist to deal with this and adds an entry > > > > > for > > > > > the Thecus NAS-es. > > > > > > > > Hi Hans, > > > > Sometimes LVDS can be configured in the BIOS on CDV devices. Can you > > > > check that it's not just a bad BIOS configuration first? > > > > > > I've asked the reporter to test, but even if there is a BIOS option it > > > seems that the BIOS default setting is wrong and we cannot expect every > > > user to go into the BIOS to fix a wrong BIOS setting. > > > > > > According to this blogpost, which is about the Linux the device ships > > > with: > > > https://astroweasel.blogspot.com/2016/02/updating-thecus-n5550-nas-to-report.html > > > > > > The pre-installed grub config includes 'video=LVDS-1:d' on the kernel > > > commandline, so this clearly seems to be a case where the system is just > > > shipping with a broken BIOS or at least with default BIOS settings which > > > is just as bad. > > > > I agree that we should try to fix a broken default but are you sure > > this will only affect the n5550? IIUC Milstead / Granite Well is an > > Intel product / board name and perhaps some of those use LVDS. > > Milstead is the name of Intel's NAS reference design: > > https://www.hardwarezone.com.my/tech-news-intel-unveils-milstead-platform-nas-devices > > I seriously doubt that any NAS-es have a LVDS (laptop/tablet) LCD panel. > > > Also, if the pre-installed OS solves this on the cmdline then it's > > only a problem if the user is trying to install a custom OS on the > > device. I would expect such a user to be able to change bios settings. > > > > I'm not totally against this but not sure about the consequences. Is > > there perhaps a better dmi string to match against? > > No there are no better DMI strings to match against I'm afraid.
I did load default settings in BIOS setup and there's no change in behaviour. LVDS gets detected as connected: $ cat /sys/class/drm/card0-LVDS-1/status connected Only VGA output is physically connected at the moment. Regards, Dominik -- Fedora https://getfedora.org | RPM Fusion http://rpmfusion.org There should be a science of discontent. People need hard times and oppression to develop psychic muscles. -- from "Collected Sayings of Muad'Dib" by the Princess Irulan _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
