From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stas Sergeev Subject: Re: 2.6.26-rc6 snd-pcsp: "Timer resolution is not sufficient" Date: Fri, 20 Jun 2008 07:57:06 +0400 Message-ID: <485B2A92.4000801@aknet.ru> References: <485AB878.5080101@keyaccess.nl> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail.aknet.ru (mail.aknet.ru [78.158.192.26]) by alsa0.perex.cz (Postfix) with ESMTP id CF8B924517 for ; Fri, 20 Jun 2008 05:56:18 +0200 (CEST) In-Reply-To: <485AB878.5080101@keyaccess.nl> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Rene Herman Cc: ALSA devel List-Id: alsa-devel@alsa-project.org Hi. Rene Herman wrote: > What's this? 2.6.26-rc6: > === > input: PC Speaker as /class/input/input5 > PCSP: Timer resolution is not sufficient (4000250nS) > PCSP: Make sure you have HPET and ACPI enabled. > PC-Speaker initialization failed. > pcspkr: probe of pcspkr failed with error -5 > === > A HPET I do not have, ACPI is enabled and the driver worked fine on a > previous -rc. That means that the high-res timer mode is not available. See cat /proc/timer_list It should contain the lines like .resolution: 1 nsecs 1 nsecs means a high-res mode. Some large values (like 4000250) means low-res. Try adding the hrtimers people to CC if this is a problem.