Dear Daniel, thank you for the support in #intel-gfx@xxxxxxxxxxxxxxxx and the patch. As already commented in the bug report #84682, there are some typos. Am Dienstag, den 04.11.2014, 15:29 +0100 schrieb Daniel Vetter: > Fastboot in its current incarnation assumes that the pfit isn't > relevatn for the state and that it can be disabled without restarting releva*nt* > the crtc. Unfortunately that's not the case on gen2/3 - it upsets the > hw and results in a black screen. > > Worse, the way the current fastboot hack is structure we can't detect structure*d* > and work around this in the code, since the fastboot smashes the > adjusted mode into crtc->mode. Which means the higher levels can't > correctly figure out that this is a lie and act accordingly. > > Since fastboot is just a tech demo let's mark the module option as > experimental and close the coresponding reports as wontfix. cor*r*esponding > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=84682 > Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx> > --- > drivers/gpu/drm/i915/i915_params.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c > index c91cb2033cc5..93d792349668 100644 > --- a/drivers/gpu/drm/i915/i915_params.c > +++ b/drivers/gpu/drm/i915/i915_params.c > @@ -138,7 +138,7 @@ MODULE_PARM_DESC(disable_power_well, > module_param_named(enable_ips, i915.enable_ips, int, 0600); > MODULE_PARM_DESC(enable_ips, "Enable IPS (default: true)"); > > -module_param_named(fastboot, i915.fastboot, bool, 0600); > +module_param_named_unsafe(fastboot, i915.fastboot, bool, 0600); > MODULE_PARM_DESC(fastboot, > "Try to skip unnecessary mode sets at boot time (default: false)"); Thanks, Paul
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