ATI-Drivers stopped working with 4.0.5 kernel

Banana · Veteran Joined: 21 May 2004 Posts: 1404 Location: Germany

no I do not use bumblebee and nvidia

in this case bumblebee is the hostname :-)

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Banana · Veteran Joined: 21 May 2004 Posts: 1404 Location: Germany

hmm the kernel log shows this after a launch with the fglrx config in Xorg
https://bpaste.net/show/9a41523f8fd1

Found something: https://www.kernel.org/doc/Documentation/Intel-IOMMU.txt. Did not help by extending the boot parameters....
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DONAHUE · Posted: Mon Nov 02, 2015 10:54 pm Post subject:

your google-fu is still great
did extending the boot parameters stop the logging even though the graphics are unchanged?

have you tried startxfce4 as root?
Does X -retro give a black/white stippled screen with a movable mouse cursor in fglrx mode?
if the stippled screen does appear try emerging xterm, twm, xclock and set startx to xdm vice xfce4 and try startx?
Does the GUI screen respond to up/down on the laptop brightness and backlight controls?
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Banana · Veteran Joined: 21 May 2004 Posts: 1404 Location: Germany

adding the boot parameters did nothing. I hope I did it right...

Removing IOMMU support from the kernel and then starting X with fglrx got me a segfault/freeze whatever. Only a long press on the power button helped.

I will test your suggestions tonight and respond with the results. thx for your help so far!
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Banana · Veteran Joined: 21 May 2004 Posts: 1404 Location: Germany

DONAHUE · Posted: Tue Nov 03, 2015 8:59 pm Post subject:

last couple of thoughts: does the laptop bios have settings for the graphics--I think some have choices like advanced graphics auto/on or grahics powersaving auto/on - suggest cycle through them if you have them - think I've seen reports of auto as a problem like yours
try the opensource radeon driver
google for your laptop make/model-linux-etc, btw what is the make/model
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Banana · Veteran Joined: 21 May 2004 Posts: 1404 Location: Germany

Well, it has but i don't understand it completely what they mean. There is no such thing "on or off". Just some gibberish which I do not understand. Gonna try it and perhaps i will tell me what the settings are

I plan to use the radeon driver. Is there any way to find out if my card is supported?
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DONAHUE · Posted: Wed Nov 04, 2015 5:11 pm Post subject:

https://wiki.gentoo.org/wiki/Radeon
you should be supported by the radeon driver - oland firmware -
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Banana · Veteran Joined: 21 May 2004 Posts: 1404 Location: Germany

I tried and it failed again. No real "error". Just the "no modes" found.

First I got the missing module radeonsi? Why...
Then I got some warings/errors about missing intel i965 driver? I worked with the i915 all the way...

After I solved those, and used the radeon driver in xorg it still does not work...

then I discovered this:
https://wiki.archlinux.org/index.php/PRIME

after this:

Banana · Veteran Joined: 21 May 2004 Posts: 1404 Location: Germany

giving up for now.
I really do not know what I should do....
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