Hi stable maintainers, I found a bug report that is fixed by this patch Upstream commit id: cbbd379aa43890f36da934f5af619d2fb8ec3d87 I've checked it against 3.9 and 3.8 but can probably be applied to older kernels if needed. Bugzilla entry is added below. Thanks Patrik Jakobsson Commit message: By having a higher max resolution we can now set up a virtual framebuffer that spans several monitors. 4096 should be ok since we're gen 3 or higher and should be enough for most dual head setups. Bugzilla: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-modesetting/+bug/1169147 Cc: kernel-team@xxxxxxxxxxxxxxxx Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@xxxxxxxxx> --- drivers/gpu/drm/gma500/framebuffer.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c index 31ac392..1534e22 100644 --- a/drivers/gpu/drm/gma500/framebuffer.c +++ b/drivers/gpu/drm/gma500/framebuffer.c @@ -772,8 +772,8 @@ void psb_modeset_init(struct drm_device *dev) for (i = 0; i < dev_priv->num_pipe; i++) psb_intel_crtc_init(dev, i, mode_dev); - dev->mode_config.max_width = 2048; - dev->mode_config.max_height = 2048; + dev->mode_config.max_width = 4096; + dev->mode_config.max_height = 4096; psb_setup_outputs(dev); -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html