From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 93826] 144Hz graphic glitches and bad refresh rate Date: Mon, 25 Jan 2016 08:39:11 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0111551095==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 235F66E03E for ; Mon, 25 Jan 2016 00:39:11 -0800 (PST) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0111551095== Content-Type: multipart/alternative; boundary="14537111510.CEF6658b.5930"; charset="UTF-8" --14537111510.CEF6658b.5930 Date: Mon, 25 Jan 2016 08:39:11 +0000 MIME-Version: 1.0 Content-Type: text/plain https://bugs.freedesktop.org/show_bug.cgi?id=93826 --- Comment #14 from Damien --- Grub uses the old VGA driver and can not handle the 290x @144hz. It's the same issue with the opensource which works correctly only @60 Hz... I fixed the problem by forcing a resolution with grub. But impossible to solve the issue with the xf86-video-ati driver. Also tried the git version. Remember, no issue with windows & linux with Catalyst fglrx driver so I do not trust a hardware issue. There must be a différence in refresh rate management if catalyst wedge to 144Hz immediately after installation while the opensource driver made a bizarre 139Hz with artifacts (see attachments). Can be an important point to clarify: I use DisplayPort 1.2. -- You are receiving this mail because: You are the assignee for the bug. --14537111510.CEF6658b.5930 Date: Mon, 25 Jan 2016 08:39:11 +0000 MIME-Version: 1.0 Content-Type: text/html

Comment # 14 on bug 93826 from 
Grub uses the old VGA driver and can not handle the 290x @144hz. It's the same
issue with the opensource which works correctly only @60 Hz...  I fixed the
problem by forcing a resolution with grub. 

But impossible to solve the issue with the xf86-video-ati driver. Also tried
the git version.

Remember, no issue with windows & linux with Catalyst fglrx driver so I do not
trust a hardware issue.
There must be a différence in refresh rate management if catalyst wedge to
144Hz immediately after installation while the opensource driver made a bizarre
139Hz with artifacts (see attachments).

Can be an important point to clarify: I use DisplayPort 1.2.

You are receiving this mail because:
  • You are the assignee for the bug.
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