X2Go Bug report logs - #205
Patch for fix cairo issue

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Package: nx-libs; Maintainer for nx-libs is X2Go Developers <x2go-dev@lists.x2go.org>;

Reported by: Nicolas DEFFAYET <nicolas@deffayet.com>

Date: Fri, 10 May 2013 21:18:01 UTC

Severity: normal

Tags: moreinfo, patch

Found in version 3.5.0.20-0

Done: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

Bug is archived. No further changes may be made.

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Subject: Bug#205: [X2Go-Dev] Bug#205: Some comments on this
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From: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
To: Ulrich Sibiller <uli42@gmx.de>, 205@bugs.x2go.org
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Control: close -1

On  Di 02 Dez 2014 23:58:01 CET, Ulrich Sibiller wrote:

> In nxagent-3.5.0-8 NoMachine has tweaked the version number of
> nxagent to work better with cairo. So doing this is not completely
> unusual for NX...
>
> In nx-X11/programs/Xserver/hw/
> nxagent/Init.c you can find these lines:
> -----------------------------------------------------------
> /*
> * Avoid slowness due to buggy_repeat workaround
> * in libcairo versions >= 1.10.
> */
>
> SetVendorRelease(70000000);
> -----------------------------------------------------------
>
> And in the CHANGELOG:
> -----------------------------------------------------------
> nxagent-3.5.0-8
>
> - Fixed TR01J02646. Performance issues with cairo version 1.12.
> -----------------------------------------------------------
>
>
> However, the current cairo code contains this
> (http://cgit.freedesktop.org/cairo/tree/src/cairo-xlib-display.c
> around line 300):
> -----------------------------------------------------------
> if (VendorRelease (dpy) >= 60700000) {
>    if (VendorRelease (dpy) < 70000000)
> display->buggy_repeat = TRUE;
> }
> -----------------------------------------------------------
>
> As NX is presenting itself as 70000000 the condition is false already
> and changing the version to 70100000 would not change the cairo
> behaviour here.
>
> BTW: Xorg 6.9 and 7.0 are the same code. 7.0 has just been
> restructured completely and adapted to automake.

Agreeing with Uli on this and thus closing.

Mike
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