aleGpereira Dec 7, 2012 @ 8:34pm
Driver Dual ATI GPUs
Hello Steam for linux Beta community!

I have a Hp pavilion dv6 that comes with two Ati graphics cards: HD 4200 and radeon 5650. My problem is that i can't (and never couldn't) find a good driver for this. First of all, i couldn't even make the switch of vga card at least once. Always is the HD 4200 the one is working.
Since that today i've been notified that i was going to be part of this beta, i spent all day trying to get this problem solved now there's been a while that i touched this matter since the last time.

I think i tried everything. I'm on ubuntu 12.04 now and i installed:
1) Fglrx drivers but works with graphic lag when open the unity dash, drag and drop windows, etc.... Awful. I still can't tried TF2 because is still on download process. But it will suck, i'm pretty sure.
2) I installed open source driver "radeon" to try the vgaswitcheroo feature to see if i can use
the 5650 gpu. No luck. Never makes the switch, i get the nice notification sign telling me that is making it but when i check the switch file i can see that the HD 4200 is still selected.
3) I installed the beta of catalyst 12.11 and unity crashes. I got the black screen. But it is weird because after this, i starting to try fglrx and radeon drivers and tried back again 12.11 and the installer said to me that my hardware is not supported for this driver (???).

So for me is not even possible to get working the 5650 gpu once the download of TF2 is finished.

Does someone has a positive feedback about this?

It a shame that Ati drivers sucks that much for linux...
Showing 1-9 of 9 comments
< >
RussianNeuroMancer Dec 8, 2012 @ 2:39am 
If your laptop is MUX-ed:
You need to relogin (restart X server) after switch via vgaswitcheroo. Another option is call to HP every day until they send to you fixed BIOS where you will able to switch GPU without using vgaswitcheroo (this will allow you to switch to Radeon HD 5650M and use it with latest fglrx driver).

If your laptop is MUX-less:
Use radeon driver and PRIME to offload Steam and TF2 rendering to 5650 (btw, you may do that on MUX-ed laptops too). You need at least Xserver 1.13.1 to do that (available in Xorg-Edgers PPA for Ubuntu 12.10; using Xorg-Edgers PPA may break your system, so learn how to use ppa-purge from recovery mode before update from this PPA).

> It a shame that Ati drivers sucks that much for linux...
Unfortunately, at least on laptops market, other GPU vendors is suck even more.
Last edited by RussianNeuroMancer; Jul 30, 2013 @ 6:10am
aleGpereira Dec 8, 2012 @ 5:00pm 
How can i know if is MUX-ed or MUX-less?
RussianNeuroMancer Dec 8, 2012 @ 6:46pm 
Judging from item 1 of your post I guess your laptop is MUX-less, because Catalyst 12.4 is run for you (in MUX-ed case this is impossible, because support of MUX-ed graphics in Catalyst was stopped (Xserver doesn't start) since 11.8 release due to stability issues).
Letalis Sonus Dec 8, 2012 @ 6:52pm 
Originally posted by RussianNeuroMancer:
Judging from item 1 of your post I guess your laptop is MUX-less, because Catalyst 12.4 is run for you (in MUX-ed case this is impossible, because support of MUX-ed graphics in Catalyst was stopped (Xserver doesn't start) since 11.8 release due to stability issues).
Nope, a working Catalyst 12.4 does not say anything about the situation. The minor card *always* works without even touching the multiplexer, simply because it is the default being initially selected. And without a multiplexer it is the primary card, anyway.
Last edited by Letalis Sonus; Dec 8, 2012 @ 6:52pm
RussianNeuroMancer Dec 8, 2012 @ 7:15pm 
You probably right, I miss one important detail: MUX-ed support stopped for A+I, but A+A MUX-ed support may be still there.

Anyway, aleGpereira need try vgaswitcheroo with relogin, and if it doesn't work, go to PRIME path.
Letalis Sonus Dec 9, 2012 @ 3:36am 
The point was: The MUX chip does not need to be supported for using the primary card, everything will work like there was no 2nd card. The chip only needs to be supported when one wants to use the 2nd card as the primary one powering the display.
Same counts for MUX-less, just with the difference that the 2nd card can never be a true primary card.
aleGpereira Dec 9, 2012 @ 11:56am 
Ok, i can finally make the switch with radeon drivers and relogin. I run TF2 and i can play it. Doesn't run in a 100% effective way. Has some lag with sound and movement. Some button blinks a little bit, but i believe that this is because the driver.

Thanks a lot!
RussianNeuroMancer Dec 9, 2012 @ 5:34pm 
So, you have a MUX-ed laptop (Letalis Sonus was right :) and hopefully GPU switch via BIOS is possible. Call to HP and ask them provide updated BIOS with GPU switch option.
aleGpereira Dec 9, 2012 @ 6:03pm 
Ok, i will try that. It seems like a very good option if they provide me the BIOS.
Showing 1-9 of 9 comments
< >
Per page: 15 30 50