webgl not work on my desktop

Reece_Isaac

Since returning from overseas, I have been trying to revert to my desktop computer from which I had affectively cloned to my laptop prior to going OS. The desktop is an older machine that is running Linuxmint 18 (up till yesterday 17.3) the laptop also is running 17.3.
The desktop has a dual core Athlon cpu and a Nvidia gs7100 gpu running the recommended propriety driver  (the laptop has a quad core Pentium and a nvidia gpu). The laptop developed a similar issue with Firefox in the last couple of weeks but has been cured. Prior to and since then I have been able to open and work on models with the laptop.

With the desktop computer, I have not been able to get either Chromium or Firefox to display any of the models I select to show on screen.  I have one model that has a drawing tab that will display without the dimensions showing until a mouse movement then the screen goes blank. 
I have been trying to prove that webgl is turned on and what tests I've managed to do, say it is on. 
The problem being with both browsers makes me think that it is a system issue. 
Apart from getting a new gpu, does anyone have any ideas how I can trouble shoot this?
Thanks.

bradley_sauln

A lot of this has to do with if you have a custom build and the browsers not detecting the set up so it thinks that your graphics can't handle webGL, which probably isn't the case.

To address the issue you are having with Firefox, could you just go to this link in FF to first make sure you're good to go: https://cad.onshape.com/check

If you don't see all green checks let me know (but you should).

Then you can follow these instructions:

In FireFox

First, enable WebGL:

• In the address bar type about:config

• Search for webgl.disabled

• Ensure that its value is false (any changes take effect immediately without relaunching Firefox)

Then inspect the status of WebGL:

• Go to about:support

• Inspect the WebGL Renderer row in the Graphics table:

• If the status contains a graphics card manufacturer, model and driver (eg: "NVIDIA Corporation -- NVIDIA GeForce GT 650M OpenGL Engine"), then WebGL is enabled.

• If the status is something like "Blocked for your graphics card because of unresolved driver issues" or "Blocked for your graphics driver version", then your graphics card/driver is blacklisted.

If your graphics card/drivers are blacklisted, you can override the blacklist. Warning: this is not recommended!. To override the blacklist:

• Go to about:config

• Search for webgl.force-enabled

• Set it to true

(Like Chrome, Firefox has a Use hardware acceleration when available checkbox, inPreferences > Advanced > General > Browsing. However, unlike Chrome, Firefox does not require this checkbox to be checked for WebGL to work.)

bradley_sauln

A lot of this has to do with if you have a custom build and the browsers not detecting the set up so it thinks that your graphics can't handle webGL, which probably isn't the case.

To address the issue you are having with Firefox, could you just go to this link in FF to first make sure you're good to go: https://cad.onshape.com/check

If you don't see all green checks let me know (but you should).

Then you can follow these instructions:

In FireFox

First, enable WebGL:

• In the address bar type about:config

• Search for webgl.disabled

• Ensure that its value is false (any changes take effect immediately without relaunching Firefox)

Then inspect the status of WebGL:

• Go to about:support

• Inspect the WebGL Renderer row in the Graphics table:

• If the status contains a graphics card manufacturer, model and driver (eg: "NVIDIA Corporation -- NVIDIA GeForce GT 650M OpenGL Engine"), then WebGL is enabled.

• If the status is something like "Blocked for your graphics card because of unresolved driver issues" or "Blocked for your graphics driver version", then your graphics card/driver is blacklisted.

If your graphics card/drivers are blacklisted, you can override the blacklist. Warning: this is not recommended!. To override the blacklist:

• Go to about:config

• Search for webgl.force-enabled

• Set it to true

(Like Chrome, Firefox has a Use hardware acceleration when available checkbox, inPreferences > Advanced > General > Browsing. However, unlike Chrome, Firefox does not require this checkbox to be checked for WebGL to work.)

Reece_Isaac

Thanks Bradley for the info.  I've resolved the issue by installing a hand-me down graphics card (Geforce 9800 gt) and a $75 computer case (and a $12 dvi-vga adapter).  I would love to go back and check with that page to discover why my old card wouldn't work. I knew there was a page to check somewhere but couldn't think of its url.  It has been OK with webgl in the past.  The machine is 10 years old now that I've been searching for issues. At least my machine doesn't look so dated anymore. 

Reece_Isaac

Graphics card failed today. back to square one.

Reece_Isaac

Graphics card failed today. back to square one.