[Bug 110201] mesa 19.0.0 breaks rendering in kitty

* [Bug 110201] mesa 19.0.0 breaks rendering in kitty
@ 2019-03-20  3:55 bugzilla-daemon
  2019-03-20  3:57 ` bugzilla-daemon
  2019-03-20  8:04 ` [Bug 110201] [ivb] " bugzilla-daemon
  0 siblings, 2 replies; 3+ messages in thread
From: bugzilla-daemon @ 2019-03-20  3:55 UTC (permalink / raw)
  To: dri-devel

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https://bugs.freedesktop.org/show_bug.cgi?id=110201

            Bug ID: 110201
           Summary: mesa 19.0.0 breaks rendering in kitty
           Product: Mesa
           Version: 19.0
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i915
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: kovid@kovidgoyal.net
        QA Contact: dri-devel@lists.freedesktop.org

Created attachment 143736
  --> https://bugs.freedesktop.org/attachment.cgi?id=143736&action=edit
glxinfo output

Since upgrading to mesa 19.0.0 rendering in kitty
(https://sw.kovidgoyal.net/kitty/) an OpenGL terminal is broken, with various
artifacts, for details, see https://github.com/kovidgoyal/kitty/issues/1484

Downgrading mesa to 18.3.4 fixes it. I have a report from a user that mesa
18.3.5 also breaks it, but I cannot confirm myself. This is on Arch Linux x64
up-to-date.

I have attached output of glxinfo. 

To reproduce, simply install kitty and run it with mesa 19 -- under Wayland I
get the first line in the terminal blinking with the cursor. Under X11 I get
the first four characters being not rendered.

I have attached glxinfo and apitrace output running kitty with mesa 19.

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