From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Tue, 10 Feb 2015 09:27:32 +0100 From: Dante To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> In-Reply-To: References: <25920c5f569c11e3ad75afb21ed626b9@hamnavoe.com> Message-ID: <84332da15cf37a8b2fa36e85fa7bcd86@posteo.de> User-Agent: Posteo Webmail Subject: Re: [9fans] 9PI kernel stability Topicbox-Message-UUID: 43b51682-ead9-11e9-9d60-3106f5b1d025 Wrong, there's no drawterm on the monitor connected over HDMI :-). On 09.02.2015 23:41, Lyndon Nerenberg wrote: > On Feb 9, 2015, at 1:48 AM, Richard Miller <9fans@hamnavoe.com> wrote: > >>> 1. Text windows sometimes get black "garbage" on the background that >>> refuses to go, even if text is scrolled over it. >>> The size of the "garbage" is about 1 character, and looks like an >>> "island". That is, neither meaningful symbol, nor random pattern. >> >> There are known race conditions in the soft cursor code (not just on >> the pi). Could the black island be a "mouse dropping"? > > This sounds like a bug exposed by drawterm, worked around by having > draw page flip between re-writes. This cropped up around 2010 I > think. Might it be related?