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Holland Computing Center
HCC docs
Commits
770c67e6
Commit
770c67e6
authored
5 years ago
by
Adam Caprez
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Add section on re-enabling Indirect GLX.
Closes
#13
.
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content/guides/running_applications/how_to_setup_x11_forwarding.md
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@@ -48,7 +48,45 @@ weight = "35"
4.
Close the xeyes application by "Ctrl + c" from the terminal or click
the close button on the up-right corner of the graphical window.
#### Special note about Indirect GLX
If you are using OS X or Linux, you may need to re-enable indirect GLX (IGLX) in order for
the GUI application to run properly. IGLX was disabled for security reasons starting with
X.org version 1.17 (Linux) and XQuartz version 2.7.9 (OS X). More information about this
change is available at
[
this link
](
https://www.phoronix.com/scan.php?page=news_item&px=Xorg-IGLX-Potential-Bye-Bye
)
.
To re-enable IGLX, use the follwing instructions:
##### OS X
Open a terminal on your Mac, and run the following command:
{{% panel theme="info" header="Enable ILGX on OS X" %}}
{{
<
highlight
bash
>
}}
$ defaults write org.macosforge.xquartz.X11 enable_iglx -bool true
{{
<
/
highlight
>
}}
{{% /panel %}}
##### Linux
You will need to create a small Xorg configuration file. This requires
`root`
access, so
run commands with care.
{{% notice warning %}}
Be extremely cautious running commands as
`root`
. You can permanently make your system unusable.
{{% /notice %}}
Create a file at
`/etc/X11/xorg.conf.d/iglx.conf`
with the following contents:
{{% panel theme="info" header="/etc/X11/xorg.conf.d/iglx.conf" %}}
{{
<
highlight
bash
>
}}
Section "ServerFlags"
Option "IndirectGLX" "on"
EndSection
{{
<
/
highlight
>
}}
{{% /panel %}}
Restart X11 by logging out, or by rebooting your machine.
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