Linux MintPPC Forums • View topic

rkmugen · **Posted:** Tue Jul 31, 2012 8:14 pm

Just tried it...

I did an 'mv' to the xorg.conf, placed it outside of the X11 folder, and rebooted. I got the usual upward, scrolling text at boot... but after that I got nothing but a totally black screen.

str8bs · Joined:Fri Feb 24, 2012 6:12 pm Posts:111

rkmugen-
The xorg.conf in your signature for MintPPC11 has glx and dri disabled. Put a pound (#) in front (to the left) of both of those for starters.

Also, AFAIK, all G3 iMac (CRT) will fail without xorg.conf unless you connect external display because it sets an unsupported mode. All that is needed to get around that is a monitor section that forces VertRefresh 74-118 and HorizSync 58-62.

Side note: If you don't have mesa installed, try changing the driver in xorg.conf to fbdev. It actually seems a little "snappier" to me.

EDIT: Didn't realize I was conversing in the manuals section. Sorry.

rkmugen · **Posted:** Wed Aug 01, 2012 5:19 am

I just tried your suggestions and I'll give the results... but first, I'll take this conversation off to a new topic in MintPPC11's section... (just to keep the "Manuals" area on-topic).

str8bs · Joined:Fri Feb 24, 2012 6:12 pm Posts:111

I know this is the manuals section, but this seems to be a hot topic and also there seems to be confusion. Here is my take.

http://dri.freedesktop.org/wiki/DRM/
http://dri.freedesktop.org/wiki/glxinfo

To check for hardware acceleration simply:

Code:

glxinfo | grep render

(see the second link above to interpret the output.) To install mesa-utils:

Code:

apt-get install mesa-utils

This is just an application/utility to look at driver status and has nothing to do with whether or not the system is using hardware acceleration. (AFAIK)

**Downgrading Mesa is only necessary if you have a really old card. http://www.phoronix.com/scan.php?page=news_item&px=OTgzMg
How to downgrade: https://wiki.ubuntu.com/PowerPCKnownIssues

There are several issues that can cause DRI to fail.
1. Make sure you don't have it turned off in your xorg.conf.
2. Multiple graphics cards (which can be mimicked by framebuffer conflict--Thanks Rsavage for helping me understand that)
3. You must use a driver that supports it. FBDEV and NV do NOT. Look at /var/log/Xorg.0.log.
4. Missing microcode or firmware. http://wiki.debian.org/AtiHowTo

These statements are made with no warranty or claim to accuracy.