lkml.org 
[lkml]   [2011]   [Jan]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
SubjectRe: [PATCH] Fix i915 drm regression on AOpen i915GMm-HFS motherboard
From
On Mon, 03 Jan 2011 15:25:05 +0100, Knut Petersen <Knut_Petersen@t-online.de> wrote:
> The AOpen i915GMm-HFS is a desktop motherboard for the Intel Pentium M.
> A mobile chipset is used
> (Intel 915GM / ICH6-M). Kernel 2.6.31.14 works fine for that mobo, but
> from 2.6.32 on graphics support
> is broken because the i915 driver "detects" an lvds device with a
> resolution of 1024x768 pixels that in reality
> is not present. Unfortunately the driver assumes that the "detected"
> lvds is the primary screen and uses the
> wrong resolution also for the real VGA and DVI connectors.

Can you try:

diff --git a/drivers/gpu/drm/i915/intel_i2c.c
b/drivers/gpu/drm/i915/intel_i2c.c
index 58040f6..111128d 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -384,7 +384,7 @@ int intel_setup_gmbus(struct drm_device *dev)
bus->reg0 = i | GMBUS_RATE_100KHZ;

/* XXX force bit banging until GMBUS is fully debugged */
- bus->force_bit = intel_gpio_create(dev_priv, i);
+ //bus->force_bit = intel_gpio_create(dev_priv, i);
}

intel_i2c_reset(dev_priv->dev);
-Chris
--
Chris Wilson, Intel Open Source Technology Centre


\
 
 \ /
  Last update: 2011-01-03 15:59    [W:0.055 / U:0.216 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site