Thank you for reporting this bug to Ubuntu. Ubuntu 10.10 (maverick) reached end-of-life on April 10, 2012.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in and change the bug status to Confirmed. ** Changed in: linux (Ubuntu) Status: Incomplete => Won't Fix -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/665117 Title: glxgears really jerky on Maverick Status in linux package in Ubuntu: Won't Fix Bug description: Hello, Since I have upgraded (even reinstalled from scratch )from Ubuntu Lucid to Ubuntu Maverick, glxgears is really jerky on my eeePC 1000H (intel 945GM card using i915 module). I checked that direct rendering is enabled. The strange thing is that if I move the mouse while running glxgears, it becomes smooth and the framerate goes up to roughly 60fps (vsync is enabled by default in the new intel driver if I am not wrong). As soon as I stop moving the mouse it becomes jerky and the framerate goes down around 20-30 fps. Everything was fine on lucid. I know that glxgears is not a benchmark, but it should be running smooth anyway. see those threads on the forum: http://ubuntuforums.org/showthread.php?t=1594350 http://ubuntuforums.org/showthread.php?t=1591565 First I thought it was something related to the kernel, I tried different kernels like 2.6.35 and 2.6.36 but I had the same issues. however I went back to lucid and upgraded to the maverick backported kernel 2.6.35 and glxgears is running fine and smooth. I tried to run glxgears with and without compiz and it does not change anything. I also tried other distributions, Mint Linux 10RC and fedora 14 beta and I have exactly the same issues. I tried to use the X-Updates ppa on ubuntu but it did not improve anything. I am now back on lucid with maverick backported kernel 2.6.35, however I have noticed that I have the same errors when I do dmesg. Only the drm errors was present even in lucid default kernel (2.6.32). However both errors are present on Lucid and Maverick with kernel 2.6.35. From line 637: 1.743858] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 202 [ 1.743866] [drm:drm_edid_block_valid] *ERROR* Raw EDID: [ 1.743875] <3>00 ff ff ff ff ff ff 00 22 64 e9 03 a2 28 00 00 ........"d...(.. [ 1.743881] <3>12 12 01 03 80 16 0d 78 0a 86 26 94 57 51 90 27 .......x..&.WQ.' [ 1.743886] <3>21 4f 54 00 00 00 01 01 01 01 01 01 01 01 01 01 !OT............. [ 1.743892] <3>01 01 01 01 01 01 94 11 00 b0 40 58 19 20 35 23 ..........@X. 5# [ 1.743898] <3>45 00 dc 81 00 00 00 19 16 14 00 d8 40 58 26 20 E...........@X& [ 1.743904] <3>5d 23 15 04 dc 81 00 00 00 00 00 00 00 fe 00 00 ]#.............. [ 1.743910] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fe ................ [ 1.743915] <3>00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 c8 ................ [ 1.743920] [ 1.845657] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 202 [ 1.845664] [drm:drm_edid_block_valid] *ERROR* Raw EDID: [ 1.845670] <3>00 ff ff ff ff ff ff 00 22 64 e9 03 a2 28 00 00 ........"d...(.. [ 1.845676] <3>12 12 01 03 80 16 0d 78 0a 86 26 94 57 51 90 27 .......x..&.WQ.' [ 1.845682] <3>21 4f 54 00 00 00 01 01 01 01 01 01 01 01 01 01 !OT............. [ 1.845688] <3>01 01 01 01 01 01 94 11 00 b0 40 58 19 20 35 23 ..........@X. 5# [ 1.845693] <3>45 00 dc 81 00 00 00 19 16 14 00 d8 40 58 26 20 E...........@X& [ 1.845699] <3>5d 23 15 04 dc 81 00 00 00 00 00 00 00 fe 00 00 ]#.............. [ 1.845705] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fe ................ [ 1.845710] <3>00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 c8 ................ [ 1.845715] [ 1.947484] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 202 [ 1.947491] [drm:drm_edid_block_valid] *ERROR* Raw EDID: [ 1.947497] <3>00 ff ff ff ff ff ff 00 22 64 e9 03 a2 28 00 00 ........"d...(.. [ 1.947503] <3>12 12 01 03 80 16 0d 78 0a 86 26 94 57 51 90 27 .......x..&.WQ.' [ 1.947509] <3>21 4f 54 00 00 00 01 01 01 01 01 01 01 01 01 01 !OT............. [ 1.947515] <3>01 01 01 01 01 01 94 11 00 b0 40 58 19 20 35 23 ..........@X. 5# [ 1.947520] <3>45 00 dc 81 00 00 00 19 16 14 00 d8 40 58 26 20 E...........@X& [ 1.947526] <3>5d 23 15 04 dc 81 00 00 00 00 00 00 00 fe 00 00 ]#.............. [ 1.947532] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fe ................ [ 1.947537] <3>00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 c8 ................ [ 1.947542] [ 2.049232] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 202 [ 2.049238] [drm:drm_edid_block_valid] *ERROR* Raw EDID: [ 2.049245] <3>00 ff ff ff ff ff ff 00 22 64 e9 03 a2 28 00 00 ........"d...(.. [ 2.049251] <3>12 12 01 03 80 16 0d 78 0a 86 26 94 57 51 90 27 .......x..&.WQ.' [ 2.049256] <3>21 4f 54 00 00 00 01 01 01 01 01 01 01 01 01 01 !OT............. [ 2.049262] <3>01 01 01 01 01 01 94 11 00 b0 40 58 19 20 35 23 ..........@X. 5# [ 2.049267] <3>45 00 dc 81 00 00 00 19 16 14 00 d8 40 58 26 20 E...........@X& [ 2.049273] <3>5d 23 15 04 dc 81 00 00 00 00 00 00 00 fe 00 00 ]#.............. [ 2.049279] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fe ................ [ 2.049284] <3>00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 c8 ................ [ 2.049288] [ 2.049297] i915 0000:00:02.0: LVDS-1: EDID block 0 invalid. and also from line 778 77.109388] Pid: 57, comm: kondemand/1 Tainted: G C 2.6.35-22-generic #34~lucid1-Ubuntu [ 77.109399] Call Trace: [ 77.109431] [<c014ac62>] warn_slowpath_common+0x72/0xa0 [ 77.109441] [<c011b4ac>] ? read_measured_perf_ctrs+0x6c/0x80 [ 77.109449] [<c011b4ac>] ? read_measured_perf_ctrs+0x6c/0x80 [ 77.109457] [<c011b440>] ? read_measured_perf_ctrs+0x0/0x80 [ 77.109465] [<c014acb2>] warn_slowpath_null+0x22/0x30 [ 77.109473] [<c011b4ac>] read_measured_perf_ctrs+0x6c/0x80 [ 77.109481] [<c011b440>] ? read_measured_perf_ctrs+0x0/0x80 [ 77.109490] [<c017b392>] smp_call_function_single+0x72/0x130 [ 77.109498] [<c011b39f>] cpufreq_get_measured_perf+0x2f/0xd0 [ 77.109508] [<c04cdeee>] ? cpufreq_cpu_get+0x8e/0xf0 [ 77.109515] [<c01761fa>] ? get_cpu_iowait_time_us+0x6a/0xa0 [ 77.109523] [<c04ce12a>] __cpufreq_driver_getavg+0x6a/0x70 [ 77.109531] [<c04d0df5>] dbs_check_cpu+0x75/0x2e0 [ 77.109539] [<c04d1107>] do_dbs_timer+0xa7/0xc0 [ 77.109548] [<c05c6cfa>] ? schedule+0x37a/0x7a0 [ 77.109557] [<c0161a7e>] run_workqueue+0x8e/0x150 [ 77.109565] [<c04d1060>] ? do_dbs_timer+0x0/0xc0 [ 77.109573] [<c0161bc4>] worker_thread+0x84/0xe0 [ 77.109581] [<c0165e30>] ? autoremove_wake_function+0x0/0x50 [ 77.109589] [<c0161b40>] ? worker_thread+0x0/0xe0 [ 77.109597] [<c0165a04>] kthread+0x74/0x80 [ 77.109604] [<c0165990>] ? kthread+0x0/0x80 [ 77.109612] [<c010363e>] kernel_thread_helper+0x6/0x10 [ 77.109618] ---[ end trace d5137aed5eacbbff ]--- I have not changed anything, the issue is present on the live CDs and with all the distribs I have tested. I hope it can help. It might be related to xserver-xorg-video-intel ? I cannot really tell. Thanks a lot for looking at this issue. Eric --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. AplayDevices: **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: eric 1373 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xf7eb8000 irq 43' Mixer name : 'Realtek ALC269' Components : 'HDA:10ec0269,1043831a,00100004' Controls : 10 Simple ctrls : 6 DistroRelease: Ubuntu 10.10 HibernationDevice: RESUME=UUID=397977df-1320-4854-b4eb-31a3befed4ce InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007) MachineType: ASUSTeK Computer INC. 1000H Package: linux (not installed) ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-genUser Name root=UUID=b4fc103f-fcf7-4816-a08c-b55b8d945222 ro quiet splash ProcEnviron: LANG=en_US.utf8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.35-22.35-genUser Name 2.6.35.4 Regression: Yes RelatedPackageVersions: linux-firmware 1.38 Reproducible: Yes RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no StagingDrivers: rt2860sta Tags: maverick kernel-graphics regression-release needs-upstream-testing staging Title: [STAGING] Uname: Linux 2.6.35-22-generic i686 UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare dmi.bios.date: 10/21/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2204 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: 1000H dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: x.xx dmi.chassis.asset.tag: 0x00000000 dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTek Computer INC. dmi.chassis.version: x.x dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2204:bd10/21/2009:svnASUSTeKComputerINC.:pn1000H:pvrx.x:rvnASUSTeKComputerINC.:rn1000H:rvrx.xx:cvnASUSTekComputerINC.:ct10:cvrx.x: dmi.product.name: 1000H dmi.product.version: x.x dmi.sys.vendor: ASUSTeK Computer INC. 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