linux-kernel - Re: 3.16, i915: less colors in X?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 21 Jun 2014 22:06:52 +0100
From:	Chris Wilson <chris@...is-wilson.co.uk>
To:	Pavel Machek <pavel@....cz>
Cc:	Daniel Vetter <daniel.vetter@...ll.ch>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	kernel list <linux-kernel@...r.kernel.org>,
	intel-gfx <intel-gfx@...ts.freedesktop.org>
Subject: Re: 3.16, i915: less colors in X?

On Sat, Jun 21, 2014 at 10:29:01PM +0200, Pavel Machek wrote:
> Hi!
> 
> I just test-booted 3.16-rc1, and background in X looked just wrong --
> very noticeable bands on the background gradient. I thought that maybe
> it is just my eyes, but I went back to older kernel, and background is
> ok now.
> 
> I'm trying to figure out how to ask X what color depth it is using...?
> 
> This is thinkpad x60 with Debian 6.0.9.
> 
> Any ideas?

That suggests that the panel dithering changed. Compare intel_reg_dumper
output for both kernels, especially PIPE.CONF.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/