On Mon, Feb 10, 2025 at 08:29:34AM +0100, Matthieu Herrb wrote:
> On Mon, Feb 10, 2025 at 08:20:05AM +0100, Matthieu Herrb wrote:
> > On Mon, Feb 10, 2025 at 05:49:37PM +1100, Jonathan Gray wrote:
> > > On Mon, Feb 10, 2025 at 07:27:28AM +0100, Matthieu Herrb wrote:
> > > > Hi,
> > > >
> > > > sorry to not having being able to test the drm upgrade on this machine
> > > > earlier, but the new drm code hangs on boot shorly after attachine
> > > > drm, clearing the screen and displaying:
> > > >
> > > > wsdisplay0 at inteldrm0 mux1: console (std, vt100, emulation), using
> > > > wskbd1
> > > >
> > > > It's not a hard hang (the capslock led still toggles, and the CPU
> > > > don't seem to go full speed, power use stays uner 1A at 19V), but I
> > > > can't enter DDB nor do a Ctl+Alt+Del to trigger a reboot.
> > > > I've the latest BIOS for this machine.
> > >
> > > I had another report like this today. Machine could still change
> > > virtual terminals. It was also Alder Lake.
> >
> > Hmm intersting, switching VT inedeed works and cause a screen refresh.
> > So in text mode I can log in and run commands blindly. Switching to
> > anothr VT and back will display the result.
> >
> > Also now I access the machine through the net. In my previous attempt
> > I couldn't, probably because I did enter DDB after hitting
> > Ctrl+Alt+ESC, but without output on the screen I thought it failed.
> >
> > None of the printfs show up, but here's a full dmesg with DRMDEBUG
> > (and a few VT switches that add more lines at the end)
> >
>
> Another data point: X or Wayland work normally if I start them from
> these VT switches. So it's just wsdisplat that doesnt't refresh. (And
> if I had xenodm started by rc.conf.local, I probably wouldn't notice
> the issue).
does forcing a switch help?
Index: sys/dev/pci/drm/i915/i915_driver.c
===================================================================
RCS file: /cvs/src/sys/dev/pci/drm/i915/i915_driver.c,v
diff -u -p -r1.20 i915_driver.c
--- sys/dev/pci/drm/i915/i915_driver.c 7 Feb 2025 03:03:28 -0000 1.20
+++ sys/dev/pci/drm/i915/i915_driver.c 10 Feb 2025 09:59:32 -0000
@@ -2452,6 +2452,7 @@ inteldrm_attachhook(struct device *self)
config_found_sm(self, &aa, wsemuldisplaydevprint,
wsemuldisplaydevsubmatch);
+ wsdisplay_switchtoconsole();
return;
fail:
