From: Paulius Zaleckas <paulius.zaleckas@gmail.com>
To: linux-fbdev@vger.kernel.org
Subject: [Linux-fbdev-devel] drm_fb_helper: Impossible to change video mode
Date: Fri, 20 Nov 2009 13:16:28 +0000 [thread overview]
Message-ID: <badfd5ba0911200516m55693acbp8fc5164bd6d828cf@mail.gmail.com> (raw)
Hi,
On drivers using drm_fb_helper's in fb_ops it is not possible to change
video mode, because of different var->pixclock evaluation:
int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
[...]
if (var->pixclock = -1 || !var->pixclock)
return -EINVAL;
[...]
int drm_fb_helper_set_par(struct fb_info *info)
{
[...]
if (var->pixclock != -1) {
DRM_ERROR("PIXEL CLCOK SET\n");
return -EINVAL;
}
[...]
One of these evaluations will fail regardless of pixclock value.
P.S. check CLCOK spelling :)
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next reply other threads:[~2009-11-20 13:16 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-20 13:16 Paulius Zaleckas [this message]
2009-11-20 15:55 ` [Linux-fbdev-devel] drm_fb_helper: Impossible to change video Clemens Ladisch
2009-11-20 18:53 ` James Simmons
2009-11-20 19:05 ` Andrew Morton
2009-11-20 19:39 ` Paulius Zaleckas
2009-11-20 20:01 ` James Simmons
2009-11-20 20:13 ` Paulius Zaleckas
2009-11-20 20:48 ` James Simmons
2009-11-21 4:25 ` Dave Airlie
2009-11-21 4:27 ` Dave Airlie
2010-03-01 9:18 ` [Linux-fbdev-devel] drm_fb_helper: Impossible to change video mode Michal Suchanek
2010-03-03 5:02 ` Dave Airlie
2010-03-03 8:23 ` Michal Suchanek
2010-03-03 9:23 ` Dave Airlie
2010-03-03 10:32 ` Michal Suchanek
2010-03-10 18:11 ` [Linux-fbdev-devel] drm_fb_helper: Impossible to change video James Simmons
2010-03-10 21:04 ` Ville Syrjälä
2010-03-10 21:16 ` Michal Suchanek
2010-03-11 2:24 ` James Simmons
2010-03-11 2:22 ` James Simmons
2010-03-11 5:03 ` Ville Syrjälä
2010-03-10 18:04 ` James Simmons
2010-03-10 17:42 ` James Simmons
2010-03-10 18:05 ` [Linux-fbdev-devel] drm_fb_helper: Impossible to change video mode Alex Deucher
2010-03-10 18:10 ` Alex Deucher
2010-03-10 18:47 ` [Linux-fbdev-devel] drm_fb_helper: Impossible to change video James Simmons
2010-03-10 19:49 ` [Linux-fbdev-devel] drm_fb_helper: Impossible to change video mode Michal Suchanek
2010-03-10 20:06 ` Alex Deucher
2010-03-11 10:13 ` Michel Dänzer
2010-03-11 10:31 ` Pauli Nieminen
2010-03-11 15:12 ` Alex Deucher
2010-03-11 15:17 ` [Linux-fbdev-devel] drm_fb_helper: Impossible to change video James Simmons
2010-03-11 15:47 ` [Linux-fbdev-devel] drm_fb_helper: Impossible to change video mode Michal Suchanek
2010-03-12 14:52 ` [Linux-fbdev-devel] drm_fb_helper: Impossible to change video James Simmons
2010-03-12 20:51 ` [Linux-fbdev-devel] drm_fb_helper: Impossible to change video mode Dave Airlie
2010-03-13 14:40 ` [Linux-fbdev-devel] drm_fb_helper: Impossible to change video James Simmons
2010-03-13 21:01 ` [Linux-fbdev-devel] drm_fb_helper: Impossible to change video mode Dave Airlie
2010-03-14 11:41 ` Michel Dänzer
2010-03-15 18:38 ` [Linux-fbdev-devel] drm_fb_helper: Impossible to change video James Simmons
2010-03-16 13:46 ` Michel Dänzer
2010-03-16 13:56 ` James Simmons
2010-03-16 14:00 ` Michel Dänzer
2010-03-25 12:30 ` James Simmons
2010-03-15 18:22 ` James Simmons
2010-03-10 20:58 ` [Linux-fbdev-devel] drm_fb_helper: Impossible to change video mode Michal Suchanek
2010-03-11 3:41 ` [Linux-fbdev-devel] drm_fb_helper: Impossible to change video James Simmons
2010-03-10 17:35 ` James Simmons
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