From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paulius Zaleckas Date: Fri, 20 Nov 2009 13:16:28 +0000 Subject: [Linux-fbdev-devel] drm_fb_helper: Impossible to change video mode Message-Id: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-fbdev@vger.kernel.org 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 :) ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Linux-fbdev-devel mailing list Linux-fbdev-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-fbdev-devel