How to avoid this Xvfb error: ES2 Prism: Error - GLX extension is not supported
long.vu at intelerad.com
Wed Dec 14 17:13:22 UTC 2016
On Mon, Dec 12, 2016 at 3:25 PM, Eric Gunther <egunther at warwick.net> wrote:
> On Mon, 2016-12-12 at 14:39 -0500, Long Vu wrote:
>> On Mon, Dec 12, 2016 at 2:34 PM, Eric Gunther <egunther at warwick.net>
>> > On Mon, 2016-12-12 at 13:51 -0500, Long Vu wrote:
>> > I don't know if this will help, but previously adam had said:
>> > > How are you launching Xvfb? I believe it defaults to 8bpp, but
>> > > GLX
>> > only
>> > > works at 16 or 32bpp.
>> > which I think you hadn't tried yet.
>> Well I did with
>> xvfb-run -s '-screen 0 1024x768x24 +extension GLX +iglx' <command>
>> I though the adding x24 to the screen is what Adam meant.
>> If I miss understood, kindy point out to me because I am not familiar
>> with X server options.
> Again, don't know, but it would seem as though the 24 is the depth.
> As you have referred to bpp before, I assume that is what you mean.
> According to the man page for xvfb
> −screen screennum WxHxD
> This option creates screen screennum and sets its width, height, and
> depth to W, H, and D respectively. By default, only screen 0 exists and
> has the dimensions 1280x1024x8.
> Where the last number is the depth. Previously Adam mentioned that GLX
> only works at 16 or 32. I just noticed an inconsistency. It would
> seem feasible to try that command if xvfb-run takes the switches xvfb
> does. I am thinking;
> xvfb-run -s '-screen 0 1024x768x32'
> xvfb-run -s 'screen 0 1024x768x16'
> If you follow what I am saying.
I tried xvfb-run -s '-screen 0 1280x1024x16', same error.
Thanks all for the help. For now I will simply have to ignore that
I also take note about Xdummy from Xpra and VirtualGL as alternative
if I really need them.
As for recompiling the Xvfb package myself to enable GL, I'd pass
because I would rather not have to maintain a package each time there
is a new release.
Again, a great thanks to all.
Long Vu | Build Controller | Intelerad | +1-514-931-6222 ext. 7743
This email or any attachments may contain confidential or legally
privileged information intended for the sole use of the addressees. Any
use, redistribution, disclosure, or reproduction of this information,
except as intended, is prohibited. If you received this email in error,
please notify the sender and remove all copies of the message, including
More information about the xorg