On Tue, Dec 11, 2018 at 3:18 AM Kevin Cummings <cummings@xxxxxxxxxxxxxxxxxx> wrote: > > On 12/10/18 9:20 PM, Peter Robinson wrote: > >> Hi Folks, > >> Longtime Fedora user here. Last winter, I got a Raspberry Pi, and > >> installed F28 on it. Using the HDMI output, it works well. Recently, I > > > > Any reason for F-28 instead of F-29? > > Lazy? I think you're lucky I upgraded it from the F27 I originally > installed.... > > >> picked up the Raspberry Pi 7" display (and case). After hooking up the > >> display to the Pi via the ribbon cable, I booted it up. > >> > >> The 7" display works well as the initial console, and I see all the > >> usual messages go flying by. At some point (when it decides to switch > >> to graphics mode) the display goes blank. Nothing on it. I cannot > >> switch even to a virtual console. The new case blocks using the HDMI > >> port, so I had to remove the Pi from the case (while leaving the ribbon > >> cable attached to the display). After plugging a monitor into the HDMI > >> port, what I discovered was that the Pi boots using the display as > >> console, then switches to the HDMI port for the X11 driver. (not useful) > > > > If you block the vc4 driver it will continue to work as a pure non > > accelerated display, at the moment when the accelerated driver > > initialises it can't detect the DSI attached display so it goes blank. > > So if I blacklist the vc4 driver, will an X11 session start up on the > display? If not, can I modify the boot up to bring Linux up in command > line only mode? Will the virtual consoles work in that mode? > > I don't (yet) understand the uboot stuff. In a PC, I can interrupt grub > and edit the command line to put kernel options on the boot line. I > don't know how to do that with uboot. U-Boot in basically a firmware so in the context you put it it's not grub2 or like it, on aarch64 mode on the Raspberry Pi we have grub2, in F-30 we should this for ARMv7 too, The extlinux boot menu is rudimentary, it doesn't support editing. > > The support status is documented in the Fedora Raspberry Pi FAQ [1] > > Yes, it talks about supporting the touchscreen display. But there are > two parts: The graphics display, and the touch screen. Is the graphics > screen currently supported? No > I can wait for touchscreen support. > > >> How can I get the X11 display to come up on the 7" display in graphics > >> mode. What do I need? A new xorg-x11-drv driver? A newer kernel? > > > > The Raspberry Pi doesn't have, nor will ever have a xorg driver. The > > driver is a 3D mesa accelerated driver, the 2D support is via glamor > > (2D over 3D) to mesa. > > Sorry, in all the PCs I've every used, there has been a specific driver > to get X11 to run (reasonably) on every different video card I've had to > run X11 on. I'm not familiar with using them as only frame-buffer. So > this is new territory for me. X11 drivers are going away, even in the PC case, EG these days for new intel devices it uses mesa/3D glamor for Xorg too. > > The upstream open source driver we use doesn't yet fully support the > > touch screen display, I don't believe it's far off but upstream is yet > > to finish the work to have it supported. > > Yes, that's what [1] says. > > >> I'd like to turn this into a MythTV server (with a USB capture) and use > >> the display as a system console with the ability to watch videos on it. > >> (Yeah, I'm aware that its only a 800x400 screen.) Failing that, I'd > > I should have said 800x480 screen, and I also see that text mode > actually runs at 720x480? > > >> like to use it in a "tablet" mode and get used to the touch screen > >> interface. > > > > Well when it's supported upstream it will be enabled. > > > > [1] https://fedoraproject.org/wiki/Architectures/ARM/Raspberry_Pi#Is_the_Raspberry_Pi_Touch_Display_supported.3F > > _______________________________________________ > > arm mailing list -- arm@xxxxxxxxxxxxxxxxxxxxxxx > > To unsubscribe send an email to arm-leave@xxxxxxxxxxxxxxxxxxxxxxx > > Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html > > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > > List Archives: https://lists.fedoraproject.org/archives/list/arm@xxxxxxxxxxxxxxxxxxxxxxx > > Thanks for the help so far. > > -- > Kevin J. Cummings > cummings@xxxxxxxxxxxxxxxxxx > cummings@xxxxxxxxxxxxxxxxxxxxxxx > kjchome@xxxxxxxxxx > Registered Linux User #1232 (http://www.linuxcounter.net/) > _______________________________________________ > arm mailing list -- arm@xxxxxxxxxxxxxxxxxxxxxxx > To unsubscribe send an email to arm-leave@xxxxxxxxxxxxxxxxxxxxxxx > Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: https://lists.fedoraproject.org/archives/list/arm@xxxxxxxxxxxxxxxxxxxxxxx _______________________________________________ arm mailing list -- arm@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to arm-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/arm@xxxxxxxxxxxxxxxxxxxxxxx
