<gavodavo>
<DavidHeidelberg "at least serial console? :D"> Nah havent
<gavodavo>
> <@okias:matrix.org> at least serial console? :D
<gavodavo>
* Nah haven't even tested booting
<gavodavo>
However even if I do, I don't have a soldering iron for making a uart cable
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<lahvuun>
I tried booting the latest grate kernel with fastboot on nexus 7 grouper and it doesn't work. There is nothing on the screen, no backlight either. Am I missing something?
<DavidHeidelberg>
lahvuun can you do this and reboot into some working grate kernel and check ramoops?
<DavidHeidelberg>
you'll see in dmesg, what's wrong
<lahvuun>
sure
<DavidHeidelberg>
s/ramoops/pstore/ :)
<DavidHeidelberg>
(old Android habbits :P )
<lahvuun>
it's odd, looks like it's booting fine
<lahvuun>
I don't see any errors and the log ends with "No errors detected"
<lahvuun>
am I supposed to copy the kernel modules to /lib/modules for the screen to work?
<lahvuun>
so yeah, it actually boots properly but there I think the screen is off
<DavidHeidelberg>
lahvuun so no additional errors/warnings against latest kernel?
<lahvuun>
looks like it
<lahvuun>
there isn't anything related to the screen in dmesg
<lahvuun>
or at least I don't see it
<lahvuun>
is there any way I can try to turn the screen on?
<jenneron[m]>
lahvuun: is drm probed?
<jenneron[m]>
host1x*
<lahvuun>
I'm not sure what you mean. How do I check it?
<digetx>
lahvuun: which kernel .config did you use?
<digetx>
or defconfig
<lahvuun>
I used tegra_defconfig
<digetx>
lahvuun: I got the same result using tegra_defconfig, will take a closer look later today
<lahvuun>
thanks!
<digetx>
CONFIG_FB is disabled now by default
<digetx>
I think CONFIG_FRAMEBUFFER_CONSOLE previous was selecting CONFIG_FB
<digetx>
now framebuffer is completely gone in tegra_defconfig
<lahvuun>
I enabled CONFIG_FRAMEBUFFER_CONSOLE and that fixed it
<digetx>
ok
<lahvuun>
thank you again!
<digetx>
I'll make patch to fix it later today, thank you for catching this
<leanderglanda[m]>
I dont think you saw my message earlier, as it was too long
<leanderglanda[m]>
I'm just giving this info, maybe someone else has issues:
<leanderglanda[m]>
jenneron, crackthesurface and me all compiled grate-linux, so kernel version 5.13.something, and both of the other guys complained that the kernel didn't work.
<leanderglanda[m]>
So I investigated with UART. Things I noticed from the log:
<leanderglanda[m]>
no mention of host1x at all. Screen just shuts off (from boot logo) (config contains CONFIG_GRATE_HOST1X=y)
<leanderglanda[m]>
rootwait needs to be added, because mmc gets detected so late. Before only rootwait for USB as rootfs was required.
<leanderglanda[m]>
* So I investigated with UART. Things I noticed from the log:
<leanderglanda[m]>
* no mention of host1x at all. Screen just shuts off (from boot logo) (config contains CONFIG_GRATE_HOST1X=y)
<leanderglanda[m]>
* rootwait needs to be added, because mmc gets detected so late. Before only rootwait for USB as rootfs was required.
<leanderglanda[m]>
* - no mention of host1x at all. Screen just shuts off (from boot logo) (config contains CONFIG_GRATE_HOST1X=y & CONFIG_FB=y & CONFIG_DRM_PANEL_LVDS=y)
<leanderglanda[m]>
Something broke the display. 🤷
<lahvuun>
isn't this what my issue was?
<lahvuun>
in any case, CONFIG_FRAMEBUFFER_CONSOLE fixed it for me
<leanderglanda[m]>
CONFIG_FRAMEBUFFER_CONSOLE=y
<leanderglanda[m]>
Already tried, doesn't work either