https://bugs.freedesktop.org/show_bug.cgi?id=29129
--- Comment #1 from Ben Skeggs <[email protected]> 2010-07-17 06:34:57 PDT --- I *seriously* doubt this commit is responsible. It has nothing even remotely close to any changes that could cause what you're seeing. Ben. Sent from my iPhone On 17/07/2010, at 22:39, [email protected] wrote: > https://bugs.freedesktop.org/show_bug.cgi?id=29129 > > Summary: Cannot set refresh rate on nv50 > Product: xorg > Version: unspecified > Platform: x86-64 (AMD64) > URL: http://marc.info/?l=linux-kernel&m=127913459017236&w=2 > OS/Version: Linux (All) > Status: NEW > Severity: normal > Priority: medium > Component: Driver/nouveau > AssignedTo: [email protected] > ReportedBy: [email protected] > QAContact: [email protected] > > > Since Linux 2.6.34, it is no longer possible to set the refresh rate with the > "video=...@nn" parameter, e.g. video=1280x1...@75 is ignored. > > I bisected this to the following commit: > > drm/nv50: enable hpd on any connector we know the gpio line for > > Signed-off-by: Ben Skeggs <[email protected]> > > diff --git a/drivers/gpu/drm/nouveau/nv50_display.c > b/drivers/gpu/drm/nouveau/nv50_display.c > index 61a89f2..ebcd8bf 100644 > --- a/drivers/gpu/drm/nouveau/nv50_display.c > +++ b/drivers/gpu/drm/nouveau/nv50_display.c > @@ -370,7 +370,9 @@ nv50_display_init(struct drm_device *dev) > struct nouveau_connector *conn = nouveau_connector(connector); > struct dcb_gpio_entry *gpio; > > - if (conn->dcb->gpio_tag == 0xff) > + if (connector->connector_type != DRM_MODE_CONNECTOR_DVII && > + connector->connector_type != DRM_MODE_CONNECTOR_DVID && > + connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort) > continue; > > gpio = nouveau_bios_gpio_entry(dev, conn->dcb->gpio_tag); > > diff --git a/drivers/gpu/drm/nouveau/nv50_display.c > b/drivers/gpu/drm/nouveau/nv50_display.c > index ebcd8bf..61a89f2 100644 > --- a/drivers/gpu/drm/nouveau/nv50_display.c > +++ b/drivers/gpu/drm/nouveau/nv50_display.c > @@ -370,9 +370,7 @@ nv50_display_init(struct drm_device *dev) > struct nouveau_connector *conn = nouveau_connector(connector); > struct dcb_gpio_entry *gpio; > > - if (connector->connector_type != DRM_MODE_CONNECTOR_DVII && > - connector->connector_type != DRM_MODE_CONNECTOR_DVID && > - connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort) > + if (conn->dcb->gpio_tag == 0xff) > continue; > > gpio = nouveau_bios_gpio_entry(dev, conn->dcb->gpio_tag); > > > It should be noted that since this commit all the card data appear under > /sys/class/drm/card0-DVI-I-1, e.g. /sys/class/drm/card0-DVI-I-1/enabled says > "enabled" and /sys/class/drm/card0-VGA-1/enabled says "disabled", despite the > monitor being connected via VGA. > > I only noticed this in 2.6.35-rc5 because the default refresh rate changed to > 60 Hz there, see https://bugzilla.kernel.org/show_bug.cgi?id=16402. > > -- > Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email > ------- You are receiving this mail because: ------- > You are the assignee for the bug. > _______________________________________________ > Nouveau mailing list > [email protected] > http://lists.freedesktop.org/mailman/listinfo/nouveau -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ Nouveau mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/nouveau
