From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Rychter Subject: Re: video module limited after suspend Date: Wed, 22 Jun 2005 11:17:09 +0200 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org > Hi, > I have ACPI compiled into the kernel and various subsystems as > modules. The 'video' module seems to have a problem, though -- it works > great on first boot, but doesn't work correctly after a suspend/resume > (I'm using suspend2, unloading and reloading the video module after > resuming). > > The symptoms are that all subdirectories of /proc/acpi/video/VGA/ > disappear -- which means I can no longer set the LCD brighness. All I > have is this: > > total 0 > -r--r--r-- 1 root root 0 Jun 17 18:25 DOS > -r--r--r-- 1 root root 0 Jun 17 18:25 POST > -r--r--r-- 1 root root 0 Jun 17 18:25 POST_info > -r--r--r-- 1 root root 0 Jun 17 18:25 ROM > -r--r--r-- 1 root root 0 Jun 17 18:25 info > > Any hints? To narrow things down a bit: I've found out that it isn't really suspending that matters -- just doing modprobe video; rmmod video; modprobe video gets me a system without the CRT, LCD, DVI and TV directories. As a workaround, I've just compiled video into the kernel (e.g. not modularized) and I'm fine. Is anyone actually interested in those bug reports? Should I bother? --J. ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click