I have same issue with Kubuntu 8.04
Many times it starts with low resolution 800 * 600 and I think this problem
started after I changed my resolution settings to 800 * 600 from
System Setting >Monitor and Display.........
and then Back to normal.........
O/P for lspci -vvnn is :
00:00.0 Host bridge [0600]: Intel Corporation 82915G/P/GV/GL/PL/910GL Memory Con
troller Hub [8086:2580] (rev 04)
Subsystem: Hewlett-Packard Company Unknown device [103c:2a29]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step
ping- SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ >SERR- <PERR-
Latency: 0
Capabilities: <access denied>
00:02.0 VGA compatible controller [0300]: Intel Corporation 82915G/GV/910GL Inte
grated Graphics Controller [8086:2582] (rev 04) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Unknown device [103c:2a29]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step
ping- 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 ffa80000 (32-bit, non-prefetchable) [size=512K]
Region 1: I/O ports at dc00 [size=8]
Region 2: Memory at d0000000 (32-bit, prefetchable) [size=256M]
Region 3: Memory at ffa40000 (32-bit, non-prefetchable) [size=256K]
Capabilities: <access denied>
00:1b.0 Audio device [0403]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Famil
y) High Definition Audio Controller [8086:2668] (rev 04)
Subsystem: Hewlett-Packard Company Unknown device [103c:2a29]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step
ping- SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 19
Region 0: Memory at ffa3c000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
00:1d.0 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Fam
ily) USB UHCI #1 [8086:2658] (rev 04) (prog-if 00 [UHCI])
Subsystem: Hewlett-Packard Company Unknown device [103c:2a29]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step
ping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort
- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 4: I/O ports at d880 [size=32]
00:1d.1 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Fam
ily) USB UHCI #2 [8086:2659] (rev 04) (prog-if 00 [UHCI])
Subsystem: Hewlett-Packard Company Unknown device [103c:2a29]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step
ping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort
- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin B routed to IRQ 17
Region 4: I/O ports at d800 [size=32]
00:1d.2 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Fam
ily) USB UHCI #3 [8086:265a] (rev 04) (prog-if 00 [UHCI])
Subsystem: Hewlett-Packard Company Unknown device [103c:2a29]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step
ping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort
- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin C routed to IRQ 18
Region 4: I/O ports at d480 [size=32]
00:1d.3 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Fam
ily) USB UHCI #4 [8086:265b] (rev 04) (prog-if 00 [UHCI])
Subsystem: Hewlett-Packard Company Unknown device [103c:2a29]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step
ping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort
- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin D routed to IRQ 19
Region 4: I/O ports at d400 [size=32]
00:1d.7 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Fam
ily) USB2 EHCI Controller [8086:265c] (rev 04) (prog-if 20 [EHCI])
Subsystem: Hewlett-Packard Company Unknown device [103c:2a29]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step
ping- SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort
- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 0: Memory at ffa3bc00 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e] (rev d
4) (prog-if 01 [Subtractive decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step
ping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: ff800000-ff8fffff
Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort
- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: <access denied>
00:1f.0 ISA bridge [0601]: Intel Corporation 82801FB/FR (ICH6/ICH6R) LPC Interfa
ce Bridge [8086:2640] (rev 04)
Subsystem: Hewlett-Packard Company Unknown device [103c:2a29]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step
ping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort
- <MAbort- >SERR- <PERR-
Latency: 0
00:1f.2 IDE interface [0101]: Intel Corporation 82801FB/FW (ICH6/ICH6W) SATA Con
troller [8086:2651] (rev 04) (prog-if 80 [Master])
Subsystem: Hewlett-Packard Company Unknown device [103c:2a29]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step
ping- SERR- FastB2B-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort
- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin B routed to IRQ 17
Region 0: I/O ports at 01f0 [size=8]
Region 1: I/O ports at 03f4 [size=1]
Region 2: I/O ports at 0170 [size=8]
Region 3: I/O ports at 0374 [size=1]
Region 4: I/O ports at ffa0 [size=16]
Capabilities: <access denied>
00:1f.3 SMBus [0c05]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) SMBu
s Controller [8086:266a] (rev 04)
Subsystem: Hewlett-Packard Company Unknown device [103c:2a29]
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Step
ping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort
- <MAbort- >SERR- <PERR-
Interrupt: pin B routed to IRQ 10
Region 4: I/O ports at 0400 [size=32]
01:08.0 Ethernet controller [0200]: Intel Corporation 82562ET/EZ/GT/GZ - PRO/100
VE (LOM) Ethernet Controller [8086:1064] (rev 04)
Subsystem: Hewlett-Packard Company Unknown device [103c:2a29]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Step ping- SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort - <MAbort- >SERR- <PERR-
Latency: 64 (2000ns min, 14000ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 20
Region 0: Memory at ff8ef000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at cc00 [size=64]
Capabilities: <access denied>
01:09.0 FireWire (IEEE 1394) [0c00]: VIA Technologies, Inc. IEEE 1394 Host
Contr oller [1106:3044] (rev 80) (prog-if 10
[OHCI])
Subsystem: Hewlett-Packard Company Unknown device [103c:2a29]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Step ping- SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort - <MAbort- >SERR- <PERR-
Latency: 64 (8000ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 21
Region 0: Memory at ff8ff800 (32-bit, non-prefetchable) [size=2K]
Region 1: I/O ports at c880 [size=128]
Capabilities: <access denied>
--
ubuntu start low resolution in 50% cases
https://bugs.launchpad.net/bugs/266987
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