User report from xf86-video-intel-1.9.93

[Daniel Kasak]

Greetings.

I've done some more ( limited, admittedly ) testing of the latest and 
greatest:

xserver-1.2.99.903
xf86-video-intel-1.9.93

Both were built by Gentoo's portage - some kind soul has added them :)

I'm now able to start the server with EXA enabled. Great :)

I can run xcompmgr, and it works, but ... well it's actually slower than 
XAA. Is this to be expected? I'm on an I845G with a whopping 8MB of 
shared memory. It's quite possible that I'm asking too much ...

Anyway, I have a reproducible crash with EXA enabled, when starting 
applications ( well, AN application: thunderbird ... I haven't tried too 
much else ). First I tried starting thunderbird with xcompmgr running:

Error in I830WaitLpRing(), now is -1758260792, start is -1758262793
pgetbl_ctl: 0x2ffe0001 pgetbl_err: 0x0
ipeir: 0 iphdr: 9020c0
LP ring tail: 1dc00 head: 1daa8 len: 1f001 start 0
eir: 0 esr: 0 emr: ff7b
instdone: ffc1 instpm: 0
memmode: 0 instps: 2c
hwstam: fffe ier: 82 imr: 53c iir: 1
space: 130720 wanted 131064

Fatal server error:
lockup

(EE) intel(0): I830 Vblank Pipe Setup Failed 0
(EE) intel(0): I830 Vblank Pipe Setup Failed 0

Then I rebooted, and tried WITHOUT xcompmgr running:

Error in I830WaitLpRing(), now is -1758103316, start is -1758105317
pgetbl_ctl: 0x2ffe0001 pgetbl_err: 0x0
ipeir: 0 iphdr: 9020c0
LP ring tail: 2c08 head: 2ab0 len: 1f001 start 0
eir: 0 esr: 0 emr: ff7b
instdone: ffc1 instpm: 0
memmode: 0 instps: 2c
hwstam: fffe ier: 82 imr: 53c iir: 1
space: 130720 wanted 131064

Fatal server error:
lockup

(EE) intel(0): I830 Vblank Pipe Setup Failed 0
(EE) intel(0): I830 Vblank Pipe Setup Failed 0

Then I rebooted and disabled EXA, and I can start thunderbird :)

OK. Next I thought I'd try Enlightenment with the XRENDER engine. I 
enabled EXA again ( it's pretty clear what I'm interested in at this 
point, isn't it ), and started X.

At this point, one thing that I DID notice is that ( even with 
Enlightenment's software renderer ), things seemed a LOT faster. The 
ibar ( icon bar ), for example, scrolled a lot faster and more smoothly. 
Great :) Then I told Enlightenment to switch to it's XRENDER backend, 
and X crashed again:

Error in I830WaitLpRing(), now is -1757357192, start is -1757359193
pgetbl_ctl: 0x2ffe0001 pgetbl_err: 0x0
ipeir: 0 iphdr: 9020c0
LP ring tail: 165b0 head: 16510 len: 1f001 start 0
eir: 0 esr: 0 emr: ff7b
instdone: ffc1 instpm: 0
memmode: 0 instps: 2c
hwstam: fffe ier: 82 imr: 53c iir: 1
space: 130904 wanted 131064

Fatal server error:
lockup

(EE) intel(0): I830 Vblank Pipe Setup Failed 0
(EE) intel(0): I830 Vblank Pipe Setup Failed 0

I've attached the last full X log from the last crash ( ie when 
switching E17 to use XRENDER ). I can provide more info, do more testing 
if required. I'll stay on these drivers for now anyway - they seem to be 
far more stable ( with EXA disabled ) than the last version. Good work 
on tracking that down :)

Lastly, DRI is working again ( wasn't in the last release ).

Thanks :)


Dan

-- 
Daniel Kasak
IT Developer
NUS Consulting Group
Level 5, 77 Pacific Highway
North Sydney, NSW, Australia 2060
T: (+61) 2 9922-7676 / F: (+61) 2 9922 7989
email: dkasak at nusconsulting.com.au
website: http://www.nusconsulting.com.au
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