0003936: Intel 915G (82915G), xorg-x11-drv-i810-1.6.5-9.21.el5 crash

Notes
(0010201) andreasz (reporter) 2009-10-29 12:50	I am hitting the same problem... #> lspci -s 00:02 -vv 00:02.0 VGA compatible controller: Intel Corporation 82915G/GV/910GL Integrated Graphics Controller (rev 04) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Unknown device 300a Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 Interrupt: pin A routed to IRQ 10 Region 0: Memory at cfd00000 (32-bit, non-prefetchable) [size=512K] Region 1: I/O ports at 1800 [size=8] Region 2: Memory at e0000000 (32-bit, prefetchable) [size=256M] Region 3: Memory at cfd80000 (32-bit, non-prefetchable) [size=256K] Capabilities: [d0] Power Management version 2 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- As a workaround I used the 'vesa' driver instead of 'intel' in the /etc/X11/xorg.conf file. Driver "vesa"

(0010224) toracat (developer) 2009-10-31 15:50	A similar issue is being tracked in this CentOS forum: http://www.centos.org/modules/newbb/viewtopic.php?topic_id=22867 [^] One user (note 19) posted a fix as follows: My i915G failed to work after upgrading from 5.3 to 5.4, using the "intel" driver. The "i810" driver will work, but it's not the preferred driver for this chipset. I managed to get the intel driver working by disabling DDC in /etc/X11/xorg.conf: Section "Device" Identifier "Videocard0" Driver "intel" Option "DDC" "false" EndSection

(0010243) OleHolmNielsen (reporter) 2009-11-03 11:34	I can add further information: Some of our HP dc7100 PCs have this problem as well, it's the identical Intel 82915G graphics controller listed above. However, others of our dc7100s work just fine after upgrading CentOS 5.3 to 5.4 ! The reason turns out to be that they're all equipped with the DVI output PCI-Express card, and with DVI there's no problem ! Unfortunately, DVI cards for the dc7100 do not seem to be available any longer (only for newer models dc7600-dc7900 that use p/n DY674A). We've tested the suggested fix: Option "DDC" "false" and can confirm that this solves the problem for dc7100 PCs with VGA monitors. Of course, a real bug fix in the driver would be the correct solution.

(0010244) anglican (reporter) 2009-11-03 11:45	Has anyone tried a BIOS upgrade on the machines that have the problem (I can't try it on the machine with the problem here at the moment). There are reported problems in the past with Intel 915 graphics controllers failing to read monitor resolutions correctly. Intel may have fixed this in newer BIOS's.

(0010245) OleHolmNielsen (reporter) 2009-11-03 12:02	BIOS upgrade on HP dc7100 PCs ? Our PCs with the graphics problem were running HP BIOS v2.14, and upgrading to the latest v2.15 didn't change the situation. You CAN upgrade the HP dc7100 BIOS without problems using a VGA monitor, because the problem is an Xorg Linux driver issue.

(0010254) OleHolmNielsen (reporter) 2009-11-03 16:28	Correction regarding the DVI ADD2 display adapter in HP dc7100: While the graphics display did work with CentOS 5.4 for a while, users report that the graphics crashes after some time or after a logout. We have added the Option "DDC" "false" now also to dc7100 PCs that use DVI monitors, and so far we have not seen any further crashes.

(0010282) unspawn (reporter) 2009-11-04 16:36	Comments about the DC7100 were spot-on: this is a HP Compaq DC7100 SFF with VGA. Driver "intel" with Option "DDC" "false" works, haven't run it long enough to experience any malfunction though, except the maximum resolution will be a measly 1152x768 while the old driver maxed out at 1680x1050.

Issue History
Date Modified	Username	Field	Change
2009-10-24 10:47	unspawn	New Issue
2009-10-24 10:47	unspawn	Assigned To	=> kbsingh@karan.org
2009-10-24 10:47	unspawn	File Added: xorg.rpt
2009-10-27 12:39	mharpau	Issue Monitored: mharpau
2009-10-27 12:41	mharpau	Issue End Monitor: mharpau
2009-10-27 19:46	arrfab	Issue Monitored: arrfab
2009-10-28 16:22	villainy	Issue Monitored: villainy
2009-10-29 12:50	andreasz	Note Added: 0010201
2009-10-29 12:51	andreasz	Issue Monitored: andreasz
2009-10-30 09:25	anglican	Issue Monitored: anglican
2009-10-31 15:50	toracat	Note Added: 0010224
2009-11-03 11:34	OleHolmNielsen	Note Added: 0010243
2009-11-03 11:45	anglican	Note Added: 0010244
2009-11-03 12:02	OleHolmNielsen	Note Added: 0010245
2009-11-03 16:28	OleHolmNielsen	Note Added: 0010254
2009-11-04 16:36	unspawn	Note Added: 0010282

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